Science and technology event： Tesla was targeted by the short-selling institution Shannon, and the stock price fell against the market.

　　Tesla was targeted by the short-selling institution Shannon, and the stock price fell against the market.
　　Tesla’s share price suddenly dived against the market on Tuesday, with a drop of more than 4%. At the close, the company’s share price fell by 2.91%, while the Nasdaq Composite Index rose by 2.89% for the whole day. The sudden diving of Tesla’s share price is related to Citron Research, a well-known short-selling institution, eyeing the company. Citron suddenly posted a tweet on Tuesday, saying: "Citron shorted Tesla, and the supply problem will make the company’s share price drop to $100 by the end of the year. All the news surrounding this company seems to be unfavorable to the company’s share price. " Since the beginning of this year, Tesla has been constantly hit, and the company’s share price has also fallen by more than 20%.

　　Verizon will continue to investigate Yahoo’s assets or make an acquisition plan.

　　Verizon is still considering the acquisition of Yahoo. However, Verizon said that the company needs to have a better understanding of Yahoo’s assets before making a formal decision on whether to acquire Yahoo. On this issue, Fran Shammo, chief financial officer of Verizon, said at Morgan Stanley Investment Conference on Tuesday that Verizon is considering various merger and acquisition schemes, including acquisition and divestiture. Summer confirmed that Verizon was still weighing whether to keep or sell its data center.

　　According to the report, 40% of insurance companies are worried that Google will rob their jobs.

　　On March 1, local time, consulting service company Capgemini released a report saying that more than 40% of insurance companies regard Google as a potential competitor. Capgemini said in the report that Google has a wide popularity and a large amount of user data, and young consumers are likely to bypass traditional insurance companies and choose new competitors like "Google". Capgemini believes that in order to resist the upcoming market competition, insurance companies must establish their own brands, learn to use real-time consumer data and develop flexible operating models. Nevertheless, some insurance industry experts are still skeptical about the entry of technology companies such as Google into the highly regulated insurance market. These industry experts believe that technology companies are likely to become partners of insurance companies, rather than entering the market alone.

　　SoundHound beta virtual voice assistant intends to replace Siri.

　　Although in the past few years, SoundHound’s APP has mainly focused on listening to songs and recognizing songs, SoundHound has been accumulating strength for the birth of Hound. Hound is a natural voice virtual assistant built on the company’s own platform. In other words, SoundHound intends to replace existing similar voice assistants, such as Apple’s Siri, Google’s Google Now or Microsoft’s Cortana. In fact, as early as last June, when SoundHound began to accept the application of the beta version of Hound, there were rumors that it intended to replace Siri. At that time, SoundHound recruited 1,000 testers to participate in the internal testing, but received 300,000 applications for internal testing in just two months. It is reported that the current Hound version is not only suitable for Android system, but also for iOS version.

　　Apple gets a patent for a new headset: Bluetooth when the cable is disconnected.

　　On March 1, local time, Apple obtained a patent for a new headset technology called "detachable wireless listening device". This patented technology allows an earphone to receive audio signals through a traditional cable, while also supporting seamless connection of Bluetooth or other wireless fidelity. From the design point of view, this earphone seems to be no different from the traditional earphone, and two earplugs are connected to the playback device through cables. But in fact, this earphone uses two independent cables: one is used to connect two earplugs, and the other is used to connect the playback device. The key point of this patented technology is that the two cables are connected by "magnetic attachment mechanism". When connected, the playback device can transmit audio signals to the headset, and at the same time, it can supply power to the battery built in the headset. When the two cables are separated, the system will detect the state change, so as to stop the power supply, and use wireless mode to transmit audio data to users, all of which are seamlessly connected.

　　Microsoft launches new Windows security service for enterprise users.

　　It is reported that Microsoft has launched a new security service "Windows Defender Advanced Threat Protection" for Win 10 operating system, aiming to help large enterprises detect hackers and security threats more efficiently. According to Yusuf Mehdi, vice president of Microsoft, the service has been tried by Microsoft and a few users, and some software codes will be released with the new version of Win 10 operating system, but the pricing and final launch time of the service have not yet been determined. Since a large number of loopholes in Microsoft system appeared in recent years, Microsoft has been committed to improving the security of information, such as the introduction of Windows fingerprint and facial recognition security protection measures.

　　Gmail provides OCR image scanning to prevent confidential data from being leaked.

　　Google has released a data loss prevention (DLP) service to avoid accidental disclosure of confidential company files during transmission, while a recent update of Gmail can further prevent data loss. After the update, Gmail can use optical character recognition (OCR) technology to ensure that the attached pictures do not contain sensitive content like social security numbers or passwords. Google’s business platform had the function of scanning files before, but now it can match passwords or specific text strings to the blacklist of administrators to prevent accidental issuance of files, and the software can also identify employees who deliberately disclose company secrets. At present, only paid Google Apps Unlimited users can use this OCR function.

　　Sony stops selling PlayStation TV

　　Recently, Sony publicly announced on its official website that it would stop selling PlayStation TV, and the reason for the suspension was that the sales volume was too unsatisfactory. It is reported that PlayStation TV is a device launched by Sony in November 2013, which allows players to play PSV games on the TV screen or stream PS4 games. Originally, PlayStation TV was expected for its unique game streaming function, DualShock 3 handle control and low price, but many PSV games that need to use touch are incompatible with it because it does not support touch function. Soon, Sony tasted the cruelty of reality, and the seemingly powerful products performed poorly, so Sony finally decided to give up PlayStation TV, stop losses in time and try its best to recover losses.

　　Uber Real Estate dominates all start-ups in the San Francisco Bay Area.

　　As early as last September, Uber spent $123.5 million in Oakland, San Francisco, and bought the historic Sears Department Store, which covers an area of 380,000 square feet. Uber plans to use this building as one of its future headquarters. At the same time, Internet radio pioneer Pandora, solar energy company Sungevity and other small technology companies have also settled in Auckland. It is reported that the reason why these start-ups from the San Francisco Bay Area choose to enter Auckland is largely due to the trouble of housing prices. Uber has spent $2 million to decorate its new headquarters building, and plans to bring 2,000 to 3,000 jobs to Auckland. In addition, Uber real estate has dominated all start-ups in the San Francisco Bay Area. For example, Uber’s office is four times larger than Pandora, the pioneer of Internet radio, and Uber can accommodate five times as many employees as its competitor Lyft (another taxi software).

　　Google Cardboard glasses case officially goes on sale

　　Accordingly, Google officially launched and sold Cardboard glasses cases in its own Google store. Since the release of Google Cardboard’s cheap virtual reality solution in 2014, Google Cardboard has shipped more than 5 million units, surpassing HTC Vive and Microsoft’s HoloLens to become the best-selling VR devices in history. Many third-party companies use Google Cardboard’s solution to produce their own Cardboard glasses cases. Google itself has also cooperated with many third-party companies and launched the Google Cardboard certification program. According to the Google Store, a single Cardboard glasses case costs $15, and buying two glasses at one time is $5 cheaper. At the same time, there are two other VR devices for users to choose from, namely Google Tech C1-Glass VR Viewer Virtual Reality Viewer and Matte View-Master Virtual Reality Starter Kit.

　　Waze 4.0 will be put into use soon.

　　The new Waze application has been in use for several months, and now it is finally going to be officially announced. Waze is a free application, which uses the GPS information of mobile devices to obtain information about road traffic flow, thus providing better driving routes for car drivers. The new Waze will have a brand-new look, can quickly visit the destinations that users have visited frequently, and improve people’s driving experience. In addition, users can quickly share ETA with friends and family. The new version will be officially put into use soon.

　　Sony PS 3.5 does not support remote operation function.

　　Sony will launch the latest spring update of PS4 firmware system version 3.5 Beta on March 2nd, but it is reported that the PS4 version 3.5, which is in public beta this time, will not support the remote operation function as mentioned before. As early as last November, Sony announced that PS 4 3.5 would support remote operating systems on PCs and Macs, but now it is reported that Sony PS 3.5, which is about to undergo public beta, does not include this function. Sony said that the remote operation function will appear on the next version of PS 4.

　　Neato launched the world’s first sweeping robot controlled by smart watches.

　　Recently, Neato announced the launch of Botvac Connected, the world’s first sweeping robot that can be controlled by smart watches. It is reported that this sweeping robot supports the remote control of Apple Watch and Android Watch. Users only need to connect the worn watch and the sweeping robot to the same wireless network to match, and then they can start and close the cleaning program of the robot on the watch. After the robot completes the cleaning task, the user will also receive the corresponding prompt message on the watch. However, it is reported that Botvac Connected may get stuck in the corner during operation. In addition, the current price of Botvac Connected sweeping robot is 699 US dollars (about 4578 yuan).

　　Microsoft Adapts to "My World" Oculus Virtual Reality Edition

　　The fun game "Minecraft" has achieved great success. Although the thick pixel wind lacks a sense of reality, it is very suitable for virtual reality. Microsoft has run the game on HoloLens, and announced the upgrade of Oculus virtual reality headset. It is reported that this version does not deliberately simulate reality, but is based on three-dimensional scenery, which makes people feel like being in animation and can provide a good virtual reality experience. Compared with the HoloLens version, the Oculus version lacks gestures and voice control, but users can also experience a real sense of speed and height, and also have a 360-degree surround view when moving.

　　China Youth Network compiled the original, please indicate the source of China Youth Network (www.youth.cn), otherwise legal responsibility will be investigated.