投稿時間:2023-07-07 21:17:55 RSSフィード2023-07-07 21:00 分まとめ(24件)

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IT	ITmedia 総合記事一覧	[ITmedia News] 映画「君たちはどう生きるか」、IMAX同時公開へ　ジブリ作品では初	https://www.itmedia.co.jp/news/articles/2307/07/news197.html	itmedia	2023-07-07 20:07:00
python	Pythonタグが付けられた新着投稿 - Qiita	Google Colaboratoryでワードクラウドを作ってみる【Python】	https://qiita.com/kins/items/a6159252298ccaedc297	googlecolaboratory	2023-07-07 20:38:59
python	Pythonタグが付けられた新着投稿 - Qiita	DjangoでHello,world表示まで（自分用）	https://qiita.com/Ryo_Kitamoto/items/4806cf40ee92a29e4507	django	2023-07-07 20:12:56
Ruby	Rubyタグが付けられた新着投稿 - Qiita	debug.gemを色々ためして、使いこなせるようになる	https://qiita.com/kyntk/items/65e3747ddb3a37a61f77	debuggem	2023-07-07 20:36:00
技術ブログ	Developers.IO	[神アプデ] OneTab が Chrome / Edge のタブグループ機能に対応！そのまま保存・復元できるようになった	https://dev.classmethod.jp/articles/onetab-supports-tabgroup-for-chrome-edge/	chazuke	2023-07-07 11:10:22
技術ブログ	Developers.IO	RI/SP と閏年のはなし	https://dev.classmethod.jp/articles/ri-sp-leapyear/	yamawaki	2023-07-07 11:04:24
海外TECH	Ars Technica	US’s largest grid operator must process and connect backlogged clean energy projects	https://arstechnica.com/?p=1951871	numerous	2023-07-07 11:07:46
海外TECH	DEV Community	Demystifying Public Key Cryptography: Exploring Ethereum, Digital Signatures, and Wallet Management	https://dev.to/sahil_4555/demystifying-public-key-cryptography-exploring-ethereum-digital-signatures-and-wallet-management-l00	Demystifying Public Key Cryptography Exploring Ethereum Digital Signatures and Wallet ManagementEthereum relies on a powerful technology called cryptography which uses math and computer security to keep things safe Cryptography is more than just secret writing encryption It can prove knowledge of a secret without revealing it and ensure data is genuine These tools are essential for Ethereum and other blockchain systems and they are widely used in Ethereum applications Cryptography provides mathematical tools called cryptographic proofs These tools allow us to show we know a secret without telling anyone what it is For example a digital signature can prove we own a secret key without showing the key itself Digital fingerprints called hashes help us check if data is real and hasn t been tampered with Contrary to what you might think Ethereum doesn t use encryption right now This means that all communications and transactions in Ethereum are readable by everyone It s done this way to make sure everyone can verify what s happening and reach an agreement However in the future more advanced cryptographic tools may be used to encrypt some calculations while still keeping everyone on the same page Public key cryptography PKC is crucial in Ethereum for controlling who owns funds It uses a pair of keys a public key for encrypting and a private key for decrypting We ll go over the basics of PKC and understand how it helps with ownership in Ethereum Now that we ve explored the foundations of cryptography in Ethereum we re ready to uncover more practical aspects In the next post we ll dive into wallets and see how they help manage keys effectively This way we can fully embrace Ethereum s decentralized world Keys and AddressesIn Ethereum there are two types of accounts externally owned accounts EOAs and contracts EOAs are owned by individuals and are linked to digital private keys Ethereum addresses and digital signatures Private keys are essential for interacting with Ethereum as they uniquely determine Ethereum addresses It s important to note that private keys should be kept private and never shared or stored on the Ethereum network Accessing and Controlling FundsDigital signatures created using private keys play a crucial role in Ethereum transactions A valid digital signature is required for a transaction to be included in the blockchain Control over an account and its funds is granted to anyone who possesses the private key Digital signatures in Ethereum transactions prove ownership of funds by demonstrating ownership of the private key Public and Private KeysIn Ethereum keys come in pairs a private secret key and a public key The public key is similar to a bank account number while the private key acts as a secret PIN providing control over the account Ethereum users rarely encounter private keys directly as they are typically stored in encrypted files managed by Ethereum wallet software Ethereum AddressesIn Ethereum transactions the recipient is represented by an Ethereum address similar to the beneficiary account details in a bank transfer Ethereum addresses for EOAs are generated from the public key portion of a key pair It s worth noting that not all Ethereum addresses represent public private key pairs some can represent contracts which don t have private keys Public Key Cryptography and CryptocurrencyPublic key cryptography also called asymmetric cryptography is a core part of modern day information security The key exchange protocol first published in the s by Martin Hellman Whitfield Diffie and Ralph Merkle was a monumental breakthrough that incited the first big wave of public interest in the field of cryptography The Power of Mathematical FunctionsPublic key cryptography relies on mathematical functions with unique properties These functions are easy to compute but their inverse calculation is extremely challenging For example multiplying two large prime numbers together is simple but finding the prime factors of the product prime factorization is extremely difficult Trapdoor Functions and SecretsCertain mathematical functions can be easily reversed if you possess secret information If I tell you that one of the prime factors is you can trivially find the other one with a simple division ÷ Such functions are often called trapdoor functions because they are very difficult to invert unless you are given a piece of secret information that can be used as a shortcut to reverse the function Elliptic Curve CryptographyElliptic curve arithmetic is a special kind of math used in cryptography It involves doing calculations on a curved line Multiplication on this line is easy but division finding the opposite is really hard This is called the discrete logarithm problem and there aren t any known ways to solve it quickly Because of this elliptic curve cryptography is used a lot in modern computer systems It s the basis for things like private keys and digital signatures in cryptocurrencies like Ethereum Public and Private Key Pair in EthereumIn Ethereum a public private key pair is generated using public key cryptography The private key is kept secret and controls access to an Ethereum account The public key derived from the private key represents the account s address and allows for secure transactions and interactions with smart contracts The Role of Digital SignaturesA digital signature is like a special code used to sign messages In Ethereum transactions the transaction details are used as the message Elliptic curve cryptography a mathematical method combines the transaction details with a private key to create a unique code called the digital signature When sending a transaction on Ethereum to access an account or perform actions with smart contracts it must be accompanied by a digital signature created using the private key associated with the Ethereum address Verification and TrustThe great thing about elliptic curve mathematics is that anyone can verify the validity of a transaction by checking if the digital signature matches the transaction details and Ethereum address The verification process doesn t require knowing the private key it remains private However the verification process ensures that the transaction could only come from someone who possesses the private key corresponding to the public key behind the Ethereum address This is the magic of public key cryptography There is no encryption as part of the Ethereum protocolーall messages that are sent as part of the operation of the Ethereum network can necessarily be read by everyone As such private keys are only used to create digital signatures for transaction authentication Private KeysA private key is a randomly chosen number that holds the utmost importance in Ethereum It is the foundation of user control over funds associated with their Ethereum address and access to authorized contracts The private key s primary role is to generate signatures required for spending ether providing proof of ownership in transactions It is crucial to keep the private key secret to prevent unauthorized access to the associated funds and contracts Additionally backing up and protecting the private key is essential to prevent permanent loss of funds in case of accidental misplacement The private key used in Ethereum is essentially a number A simple method to generate private keys at random is by using a coin pencil and paper By flipping a coin times you can obtain a sequence of binary digits that can be used as a random private key for an Ethereum wallet From this private key the corresponding public key and address can be derived Generating a Private KeyThe process of generating a private key involves finding a secure source of randomness or entropy The private key is essentially a number chosen between and The method used to select this number should be unpredictable and non deterministic Ethereum software relies on the random number generator of the underlying operating system which is typically initialized by a human source of randomness This may involve actions like moving the mouse or pressing random keys on the keyboard Cosmic radiation noise on the computer s microphone channel can also serve as an alternative source of entropy The private key itself can be any nonzero number up to a massive value slightly less than To create a private key a bit number is randomly chosen and checked for validity within this range Typically a larger string of random bits collected from a cryptographically secure source is fed into a bit hash algorithm like Keccak or SHA If the resulting number falls within the valid range it is considered a suitable private key Otherwise the process is repeated with another random number Important ConsiderationsGenerating a private key is an offline process that doesn t require communication with the Ethereum network or anyone else True randomness is crucial to ensure the uniqueness of the private key Choosing a number yourself or using a weak random number generator increases the risk of someone else guessing the key and gaining access to your funds Therefore the private key should be truly random and unguessable Remembering the private key is not necessary allowing for the best approach in picking it true randomness Public KeyAn Ethereum public key represents a point on an elliptic curve defined by a set of x and y coordinates that satisfy the equation of the curve In simpler terms An Ethereum public key consists of two numbers that are derived from the private key through a one way calculation It is easy to calculate a public key from a private key but it is impossible to calculate the private key from the public key Calculation and Irreversibility The public key is obtained by multiplying the private key with a constant point called the generator point using elliptic curve multiplication This process is practically irreversible The resulting public key K is calculated as K k G where k is the private key G is the generator point and represents the elliptic curve multiplication operator It is important to note that this multiplication is different from regular integer arithmetic In simpler terms To obtain the public key the private key is multiplied by a generator point on the elliptic curve However there is no division operation so it is not possible to calculate the private key by simply dividing the public key by the generator point This irreversible mathematical function ensures the security of public key cryptography in Ethereum and other cryptocurrencies Elliptic curve multiplication is a one way function used in cryptography It s easy to perform multiplication but impossible to reverse it through division By using this function the private key owner can generate a public key and share it without worrying about anyone calculating the private key from the public key This mathematical property enables the creation of secure digital signatures proving ownership of Ethereum funds and control over contracts Elliptic Curve Cryptography ExplainedBoth Elliptic Curve Cryptography ECC and RSA serve the purpose of generating public and private keys for secure communication between parties However ECC offers certain advantages over RSA For example a bit key in ECC provides similar security to a bit key in RSA ECC also requires significantly less storage space and bandwidth compared to RSA making it suitable for resource constrained systems like smartphones embedded computers and cryptocurrency networks The Trapdoor Function in ECC One of the unique aspects of ECC is the trapdoor function which sets it apart from RSA Visualizing the trapdoor function can be likened to a mathematical game of pool Here s a simplified explanation of the algorithm Start at an arbitrary point on the curve Point A Use the dot function to find a new point Point B Repeat the dot function hopping around the curve until reaching the final point Point E This algorithm follows a specific pattern A dot B C Line from A to B intersects at C Reflect across the X axis from C to C A dot C D Line from A to C intersects at D Reflect across the X axis from D to D A dot D E Line from A to D intersects at E Reflect across the X axis from E to E Answers To Some ECC s QuestionsHow is the second point determined If the dot function involves connecting two points with a line isn t it necessary to have an initial point and another point to begin with To find the second point in the elliptic curve arithmetic we can perform a dot function operation This operation involves drawing a line between two points However in this case we don t need a separate second point to begin with Let s assume the first point is called P The dot function of P with itself denoted as P dot P results in a second point which we will call R In other words P dot P R What does P dot P represent It is actually the tangent line of point P This can be visualized in the following diagram So by performing the dot function on a point P with itself we obtain the tangent line at P which gives us the second point R If the number of hops represents the private key wouldn t it be possible to iterate through the hops until reaching the endpoint by counting them No it would not be feasible to simply count the hops until reaching the endpoint if the number of hops is extremely large such as The computational effort required to compute each hop individually like p dot p dot p dot p would be impractical and time consuming However if you possess the knowledge of the specific number of hops there is an alternative technique utilizing an exponentiation trick that enables a much faster determination of the endpoint This method leverages the properties of elliptic curve operations For instance by using the concept of doubling if you are aware that P is equivalent to P dot P you can calculate P as P dot P This approach allows for exponentially faster calculations even for exceedingly large values Cryptographic Hash FunctionsCryptographic hash functions play a crucial role in Ethereum and various cryptographic systems They are widely recognized as the workhorses of modern cryptography due to their extensive use in securing data In this section we will explore the basic properties of hash functions and understand why they are so indispensable in Ethereum and other secure platforms Hash functions are essential in transforming Ethereum public keys into addresses and creating digital fingerprints for data verification Understanding Hash FunctionsIn simple terms a hash function is a special type of function that converts data of any size into a fixed size output known as the hash Cryptographic hash functions specifically have specific properties that make them valuable for securing platforms like Ethereum Key Properties of Cryptographic Hash FunctionsDeterminism A specific input always generates the same hash output Verifiability Computing the hash of a message is efficient Noncorrelation Even a minor change in the input data should result in an extensively different hash output making it unrelated to the original message Irreversibility It is practically impossible to compute the original message from its hash requiring a brute force search Collision protection It should be extremely difficult to find two different messages that produce the same hash output Hash collisions are exceptionally rare in Ethereum Applications and Uses of Cryptographic Hash FunctionsCryptographic hash functions serve various security purposes including Data fingerprinting Creating unique identifiers for data Message integrity Detecting errors or tampering in messages Proof of work Supporting consensus algorithms like Ethereum s mining process Authentication Protecting passwords and enhancing key security Pseudorandom number generation Generating random values for cryptographic operations Message commitment Ensuring commitment and later revealing of messages Unique identifiers Assigning distinct labels to different entities Ethereum s Cryptographic Hash Function Keccak Ethereum relies on the Keccak cryptographic hash function for various purposes Keccak was chosen as the winner of the SHA Cryptographic Hash Function Competition conducted by the National Institute of Standards and Technology NIST in It later became standardized as Federal Information Processing Standard FIPS in Keccak and the NIST ControversyDuring Ethereum s development NIST was in the process of finalizing the standardization of Keccak However concerns arose regarding NIST s potential modifications to Keccak due to revelations made by whistleblower Edward Snowden These revelations suggested that the National Security Agency NSA had influenced NIST s random number generator standard raising doubts about its integrity The Ethereum Foundation s DecisionGiven the controversy and uncertainty surrounding NIST s modifications the standardization of SHA experienced delays Consequently the Ethereum Foundation made the decision to implement the original Keccak algorithm proposed by its inventors rather than using the modified SHA standard endorsed by NIST This choice aimed to ensure the security and reliability of Ethereum s cryptographic operations While Ethereum documents and code may mention SHA they often refer to a specific variant called Keccak instead of the officially standardized FIPS SHA The slight implementation differences mainly involve padding parameters However these distinctions are significant because Keccak and FIPS SHA produce different hash outputs for the same input Ethereum AddressesEthereum addresses are unique identifiers in the form of hexadecimal numbers They are derived from the Keccak hash of the public key specifically the last bytes Difference from Bitcoin AddressesUnlike Bitcoin addresses Ethereum addresses lack built in checksums in their user interfaces The reason behind this choice was the expectation that higher layers of the Ethereum system would handle checksums if needed as addresses would be abstracted through name services Challenges FacedHowever the development of these higher layers progressed slower than expected This led to issues in the early days of Ethereum including funds lost due to mistyped addresses and input validation errors Additionally the adoption of alternative encodings by wallet developers was slow due to the delayed implementation of Ethereum name services Inter Exchange Client Address Protocol ICAP The Inter Exchange Client Address Protocol ICAP is a method for encoding Ethereum addresses that offers convenience error checking and compatibility with the International Bank Account Number IBAN format ICAP provides a flexible and interoperable way to represent Ethereum addresses and registered names IBAN and ICAPIBAN is a widely used standard for identifying bank account numbers in international wire transfers ICAP serves as a decentralized alternative to IBAN specifically designed for Ethereum addresses Structure and ComponentsSimilar to IBAN ICAP uses alphanumeric characters letters and numbers with a maximum length of characters It introduces a special country code XE which stands for Ethereum ICAP includes a two character checksum and three variations of an account identifier ICAP Variations Direct This encoding represents the least significant bits of an Ethereum address It can handle addresses starting with zero bytes It aligns with IBAN requirements but has limitations in representing the complete Ethereum address Example XEHAMICDXSVQXVJATJWQCHWKJD characters Basic Similar to the Direct encoding but allows representation of any Ethereum address However it is not compatible with IBAN field validation Example XECHDJBPLTBCJFEONSBPOJVQCUP characters Indirect This variation encodes an identifier that links to an Ethereum address through a name registry provider It includes an asset identifier a name service and a human readable name Example XE ETHXREGKITTYCATS characters where the should be replaced by the computed checksum characters Hex Encoding with Checksum in Capitalization EIP Ethereum Improvement Proposal EIP offers a solution to enhance the accuracy of Ethereum addresses by introducing a checksum This proposal addresses the slow implementation of ICAP and name services providing a simple and effective way to prevent errors when working with Ethereum addresses EIP ChecksumTo ensure the integrity of Ethereum addresses EIP modifies the capitalization of certain characters in the address By changing the capitalization a checksum is embedded within the address itself This checksum acts as a safeguard against mistakes during address input or reading Implementation and BenefitsWallets and applications that support EIP can verify the checksum within an Ethereum address This enables them to detect and alert users about potential errors improving address accuracy However wallets that do not support EIP will still accept and process addresses without considering the checksum EIP is quite simple to implement We take the Keccak hash of the lowercase hexadecimal address This hash acts as a digital fingerprint of the address giving us a convenient checksum Any small change in the input the address should cause a big change in the resulting hash the checksum allowing us to detect errors effectively The hash of our address is then encoded in the capitalization of the address itself Let s break it down step by step Hash the lowercase address without the x prefix Keccak dfefaebdecffbaf aceebbbbbcbabadabdadfcadeaeCapitalize each alphabetic address character if the corresponding hex digit of the hash is greater than or equal to x This is easier to show if we line up the address and the hash Address dfefaebdecffbafHash aceebbbbbcbabadab In our address there is a letter d in the fourth position We compare it to the fourth character of the hash which is the number Since is less than we keep the d in lowercase Moving on the sixth character in our address is the letter f We compare it to the sixth character of the hash which is the letter c Since c is greater than we change the f in our address to uppercase F We continue this process making changes based on the comparison with the corresponding characters in the hash It s important to note that we only use the first bytes characters of the hash as a checksum because our address can only accommodate bytes characters for the appropriate capitalization Check the resulting mixed capitals address yourself and see if you can tell which characters were capitalized and which characters they correspond to in the address hash Address dFefAeBDECFfbAFHash aceebbbbbcbabadab Detecting an error in an EIP encoded addressNow let s look at how EIP addresses will help us find an error Let s assume we have printed out an Ethereum address which is EIP encoded xdFefAeBDECFfbAFNow let s make a basic mistake in reading that address The character before the last one is a capital F For this example let s assume we misread that as a capital E and we type the following incorrect address into our wallet xdFefAeBDECFfbAEAs you can see even though the address has only changed by one character in fact only one bit as e and f are one bit apart the hash of the address has changed radically That s the property of hash functions that makes them so useful for checksums Now let s line up the two and check the capitalization dFefAeBDECFfbAEbdfbbafcbbbbd It s all wrong Several of the alphabetic characters are incorrectly capitalized Remember that the capitalization is the encoding of the correct checksum The capitalization of the address we input doesn t match the checksum just calculated meaning something has changed in the address and an error has been introduced	2023-07-07 11:30:15
Apple	AppleInsider - Frontpage News	Jony Ive designs $60,000 turntable for Scottish hi-fi pioneers	https://appleinsider.com/articles/23/07/07/jony-ive-designs-60000-turntable-for-scottish-hi-fi-pioneers?utm_medium=rss	Jony Ive designs turntable for Scottish hi fi pioneersEx Apple design chief Jony Ive approached Scotland s audio firm Linn asking to collaborate on a turntable to mark the company s th anniversary Source LInnUnless you count his exceptional redesign of the UK s Comic Relief charity red nose Jony Ive has not worked on hardware since leaving Apple But his LoveFrom firm has now partnered with Linn to produce a turntable that sells starting at pounds Sterling approximately Read more	2023-07-07 11:12:16
海外TECH	Engadget	The best soundbars for 2023	https://www.engadget.com/best-soundbars-143041791.html?src=rss	The best soundbars for It s no secret that the built in speakers in most TVs are trash They don t project enough sound out to the front so you can hear well ーespecially subtle details Thankfully you don t have to splurge for a five speaker or more surround sound system to fix the problem In most living rooms a single soundbar and maybe a subwoofer will suffice to get better TV audio To help guide your shopping spree we ve compiled a list of everything to look for when searching for the best soundbar for you along with a list of the top picks for a range of budgets What to look for in a soundbarFeaturesWhen it comes to features the more you pay the more you re going to get Most affordable options or less will improve your television s audio quality but that s about it Step into the to range and you ll find a smart soundbar with things like built in voice control wireless connectivity Chromecast AirPlay and even Android TV They re all helpful when you want to avoid looking for the remote control but the best sound quality is usually only in the top tier and the formats those premium devices support I m talking about things like Dolby Atmos DTS X and other high resolution audio standards These are what you ll want to look for if truly immersive sound is what you crave for your living room setup And not all Atmos soundbars are equal so you ll need to look at the finer details carefully before you break into the savings account PortsSonyThis is a big one A lot of the more affordable soundbars are limited when it comes to connectivity options They either offer an optical port or one HDMI jack and if you re lucky both Things get slightly better in the mid range section but that s not always the case The Sonos Beam for example is but only has a single HDMI port If you want to connect your set top box gaming console and more directly to your soundbar for the best possible audio you ll likely want to look for an option with at least two HDMI eARC inputs HDMI connections are essential for things like Dolby Atmos DTS X and other high res and immersive audio formats And with the HDMI spec soundbars can support HDR K and K passthrough to make these speaker systems an even better companion for a game console ChannelsAnother big thing you ll want to pay attention to when looking for the best soundbar is channels That s the or other decimal number that companies include in product descriptions The first figure corresponds to the number of channels A two would just be left and right while a more robust Atmos system especially one with rear satellite speakers could be five or seven left right center and upward The second number refers to the subwoofer so if your new soundbar comes with one or has them built in you ll see a one here The third numeral is up firing speakers important for the immersive effect of Dolby Atmos Not all Atmos enabled units have them but if they do the third number will tell you how many are in play WirelessSonyMost soundbars these days offer either Bluetooth WiFi or both When it comes to WiFi that connectivity affords you luxuries like voice control either built in or with a separate device Chromecast Spotify Connect and AirPlay Depending on your preferences you might be able to live without some of these For me AirPlay and Chromecast are essentials but the rest I can live without Those two give me the ability to beam music and podcasts from my go to apps without having to settle for ーor struggle with ーa Bluetooth connection SizeThis one might seem obvious but humor me for a minute Nothing is more soul crushing than getting a pricey soundbar in your living room only to discover you have to rearrange everything to find a spot for it This was my plight when the Sennheiser Ambeo Soundbar arrived at my door Yes that speaker is absurdly large and heavy and most soundbars aren t nearly as big I learned a valuable lesson Make sure the space where you want to put a soundbar will accommodate the thing you re about to spend hundreds if not thousands of dollars on Basically it all comes down to the TV you have or are planning to get and what the primary goal is for your living room audio Is it ease of use Do you want the best possible sound from a single speaker or speaker sub combo Do you just want to be able to actually hear your TV better Or do you want to turn your living room into an immersive home theater system with surround sound By paying attention to each of those areas you should have a good idea of what to look for in a soundbar soundbar sub combo or a more robust setup With that said we ve put numerous products through their paces at Engadget and have a few favorites for best soundbar at various price points to get you started The Best SoundbarsBest premium soundbar Sony HT ASony has a long track record of excellent high end soundbars and its latest is another great sounding product The A is a robust Dolby Atmos soundbar capable of immersive audio thanks to Sony s Sound Mapping Sound Field Optimization vertical surround technology and S Force Pro front surround There s a lot of tech at work here and I haven t even mentioned Reality Audio or DSEE Extreme upscaling both handy when it comes to listening to music Speaking of audio you ll have the option of using Chromecast Spotify Connect or Apple AirPlay to send your tunes to the A Two HDMI eARC inputs mean you can hook up multiple streaming boxes or gaming consoles And thanks to HDMI support you can expect K and K passthrough to your television so the A is a great option for gamers This soundbar is expensive at and it doesn t come with a separate subwoofer though it does have one built in However Sony does give you multiple options for both a sub and rear satellite speakers The SA SW sub is while the SA SW is For rear speakers the SA RSS is while the truly wireless and much better looking SA RS set is If you re looking to save some money on the soundbar itself Sony offers the HT A for although we ve seen it on sale for recently It packs nearly all of the same bells and whistles as the A only in a channel configuration Runner up premium soundbar Sonos ArcThe top end of Sonos home theater lineup was well overdue for a refresh by the time the company introduced the Arc in This unit replaced the Playbar that debuted in offering directional sound via Dolby Atmos support as the main upgrade The Arc sports a more modern design stellar sound quality and all of Sonos smarts including the ability to automatically calibrate to your living room and when you add more speakers The price doesn t include a sub but the Playbar didn t come with one either And sadly Sonos doesn t include a second HDMI jack for directly connecting devices other than your TV As is typically the case with the company s wares expansion gets expensive quickly as the wireless sub is and satellite One speakers are each However the combination of the Arc and a sub will get you pretty far sound wise even if they are separate purchases Plus the smaller and more affordable Sub Mini works well with the company s most premium soundbar and it clocks in at Read our Full Review of Sonos Arc SoundbarAnother premium soundbar Bowers amp Wilkins Panorama Bowers amp Wilkins introduced its first Dolby Atmos soundbar back in March filling a void in the company s existing home theater lineup The Panorama has a channel configuration but it packs total speakers including two subwoofers and watts of sonic power For that reason the company doesn t think you ll need a dedicated sub Indeed the Panorama does offer ample bass but it s not nearly on the level as a standalone unit This smart soundbar does have a low profile refined design alongside voice capabilities “hidden until lit touch controls and support for aptX Adaptive Apple AirPlay and Spotify Connect Most importantly it s currently available for less than the original MSRP at Best midrange soundbar Sonos BeamSolid sound quality Check Dolby Atmos Yep Compact and easy to set up Uh huh Compatible with other Sonos products for a more robust system You betcha The first gen Sonos Beam has been one of our favorites since it arrived in but there was one thing it didn t have Dolby Atmos That was the big addition to the model though it s a bit limited since the Beam doesn t have any upward firing speakers Sonos manages to make things seem more directional by tweaking audio timing and frequency instead of adding more drivers The new Beam still only has the one HDMI port which means you won t be connecting a gaming console or set top box directly to this It also means that if you have an older TV with an optical jack you ll need an adapter Read our Full Review of Sonos Beam SoundbarRunner up midrange soundbar Samsung HW QBSamsung s mid range QB will cost you but it comes with a bundled subwoofer This model also supports wireless Dolby Atmos connectivity with the latest Samsung smart TVs over WiFi and the channel configuration includes up firing speakers for proper immersive sound The QB supports Q Symphony which allows you to use both the soundbar and your TV speakers for a more robust surround sound setup on some and Samsung TVs SpaceFit Sound automatically calibrates the soundbar sub combo to a room Adaptive Sound optimizes audio for specific content types and Tap Sound allows you to send tunes from a Samsung phone to the QB with a simple tap HDMI eARC connectivity is here as well and so is voice control AirPlay Chromecast and a gaming specific audio mode Another midrange soundbar Sonos RaySonos latest bid for best soundbar may be its most affordable to date but at it s not exactly a budget pick Especially when you consider there are cheaper options that come with a subwoofer Still the compact design doesn t command a lot of space in front of your TV or on your TV stand making it a great option for smaller living spaces The Ray is easy to set up and provides great sound quality for both TV and music There are some trade offs when it comes to the immersive nature of the audio but it s a good option for upgrading your TV sound with minimal fuss Read our Full Review of Sonos Ray SoundbarBest budget soundbar Vizio Vt JIf you re looking for a way to improve your TV sound on a budget Vizio has some solid options With the Vt J you get a channel setup in a compact soundbar and inch wireless sub combo for This would be a great choice if you don t want your add on TV speaker to take up a lot of space There s no WiFi connectivity but that s really the only sacrifice when it comes to the basics HDMI ARC eARC and optical connections link to your television while a mm aux jack and Bluetooth allow you to play music from your phone or another device DTS Virtual X compatibility offers some of the effect of surround sound without a bigger unit or additional speakers This article originally appeared on Engadget at	2023-07-07 11:57:08
海外TECH	Engadget	The Morning After: Twitter says Meta stole trade secrets to build Threads	https://www.engadget.com/the-morning-after-twitter-says-meta-stole-trade-secrets-to-build-threads-111503761.html?src=rss	The Morning After Twitter says Meta stole trade secrets to build ThreadsAre you on Threads yet Meta s Twitter rival pulls your existing Instagram handle and follows to create a pretty busy timeline despite only launching over hours ago It s already got over million users which is insane and speaks to the ease of converting your Instagram account to a Threads account Twitter probably isn t happy as beyond its own problems Threads is doing a decent job in these early days of replicating Elon Musk s social network Now that s legally true Twitter has threatened legal action against Meta accusing it of poaching former employees and unlawful misappropriation of trade secrets and intellectual property “Twitter intends to strictly enforce its intellectual property rights and demands that Meta take immediate steps to stop using any Twitter trade secrets or other highly confidential information Alex Spiro Elon Musk s personal lawyer wrote in a letter to Meta Spiro who is acting on behalf of Twitter parent X Corp claims Meta has hired dozens of ex Twitter employees over the last year Surely they have to get jobs somewhere Meta has refuted Spiro s claims “No one on the Threads engineering team is a former Twitter employee ーthat s just not a thing quot Meta communications director Andy Stone wrote on…Threads Mat SmithYou can get these reports delivered daily direct to your inbox Subscribe right here ​​The biggest stories you might have missedThe best gaming laptops for The best VPN services The Super Mario Bros Movie is coming to Peacock on August rdFrench Assembly passes bill allowing police to remotely activate phone camerasPolice could tap into cameras and mics for surveillance Lawmakers in France s National Assembly have passed a bill that lets police surveil suspects by remotely activating cameras microphones and GPS location systems on phones and other devices A judge will have to approve use of the powers and the recently amended bill forbids use by journalists lawyers and other quot sensitive professions quot according to Le Monde But civil liberties advocates are alarmed The digital rights group La Quadrature du Net previously pointed out the potential for abuse As the bill isn t clear about what constitutes a serious crime there are fears the French government might use this to target environmental activists and others who aren t grave threats Continue reading Dine like it s at New York s Angry Birds cafeYes it s still a thing RovioTo give you an idea how old Angry Birds is it arrived on iOS webOS and something called Maemo you don t remember Maemo before it even came to Android according to our review It s still around over years later and Sega is buying its developer Rovio for around million Now we re getting the first Angry Birds themed restaurant called iSwii by Angry Birds in the food court at the new Tangram mall in Flushing Queens NY I prefer the Kirby Cafe Continue reading The best Windows laptops for We ve got recommendations for almost every size and situation We all know this but there are so many Windows laptops now If there s a specific feature like a touchscreen or stylus input you really need there s a great chance there s a notebook for you However that abundance of choice can also make it difficult to know where to start shopping If your main focus is on general productivity a sleek ultraportable is all you need But if you edit photos and videos or play AAA games you may want a bigger system with discrete graphics We lay out the most crucial specs our top rated devices and our best budget picks too Continue reading Pokémon Sleep is coming later this monthAnd there s a gameplay trailer to prove it PokemonIt s now been four years since Pokémon Sleep was announced in the wake of the Pokémon Company s success with Pokémon Go Finally there s a brand new gameplay trailer and an approximate release date of late July Can you call it gameplay though Because really it s a sleep tracking app wearing a Pokémon jacket Continue reading This article originally appeared on Engadget at	2023-07-07 11:15:03
海外科学	NYT > Science	That’s No Coyote: A Hunter in New York State Killed a Wolf	https://www.nytimes.com/2023/07/07/climate/how-mistaken-identity-and-one-bullet-revealed-a-star-predator-far-from-home.html	coyote	2023-07-07 11:29:56
医療系	医療介護 CBnews	認知症疾患医療センターの専門医療相談件数が増加-東京都が会議で報告、「受診・受療」が3割占める	https://www.cbnews.jp/news/entry/20230707203534	認知症疾患医療センター	2023-07-07 20:40:00
医療系	医療介護 CBnews	コロナ定点把握の感染者数が前週比18.1％増加-46都道府県で前週上回る　厚労省が公表	https://www.cbnews.jp/news/entry/20230707202744	医療機関	2023-07-07 20:35:00
医療系	医療介護 CBnews	医療DX推進「財源確保を」意見相次ぐ-社保審・医療部会で	https://www.cbnews.jp/news/entry/20230707201758	医療機関	2023-07-07 20:30:00
医療系	医療介護 CBnews	看護師等確保基本指針に処遇改善推進など追記へ-勤務環境改善も、医道審・部会が改定案了承	https://www.cbnews.jp/news/entry/20230707195636	医道審議会	2023-07-07 20:12:00
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海外ニュース	Japan Times latest articles	Biden weighs giving Ukraine weapons banned by many U.S. allies	https://www.japantimes.co.jp/news/2023/07/07/world/biden-weighs-sending-ukraine-controversial-weapons/	grievous	2023-07-07 20:13:02
ニュース	BBC News - Home	Boys' ice lake deaths were accidents, coroner says	https://www.bbc.co.uk/news/uk-england-61979007?at_medium=RSS&at_campaign=KARANGA	december	2023-07-07 11:49:45
ニュース	BBC News - Home	Final Ford Fiesta rolls off production line in Cologne	https://www.bbc.co.uk/news/business-66130803?at_medium=RSS&at_campaign=KARANGA	electric	2023-07-07 11:29:06
ニュース	BBC News - Home	Scottish government wants drug possession to be legal	https://www.bbc.co.uk/news/uk-scotland-66133549?at_medium=RSS&at_campaign=KARANGA	government	2023-07-07 11:32:42
ニュース	BBC News - Home	Caroline Nokes tells of about 50 'creepy' incidents in her time as MP	https://www.bbc.co.uk/news/uk-politics-66132151?at_medium=RSS&at_campaign=KARANGA	caroline	2023-07-07 11:28:41
ニュース	BBC News - Home	British Grand Prix: Lando Norris says F1 trying its best on climate	https://www.bbc.co.uk/news/newsbeat-66123092?at_medium=RSS&at_campaign=KARANGA	realistic	2023-07-07 11:24:44
ニュース	BBC News - Home	Strike action could hit summer holiday flights in Europe	https://www.bbc.co.uk/news/business-66124424?at_medium=RSS&at_campaign=KARANGA	controllers	2023-07-07 11:12:13