NASA’s lettuce ?

Amy Schleunes, an intern at the Scientist newspaper, wrote an article about growing vegetables in space. This article was written the 9th of March 2020. NASA designed a vegetable production system, a sort of space vegetable garden called Veggie for astronauts.

A study published in “Frontiers in Plant Science” shows that lettuce can grow safely in weightless environments. The goal is to diversify astronauts diet. Gioia Massa, a plant scientist who works for the NASA said that the unique challenge was to watering plants in space properly. Veggie is not bulky and very convenient. It can contains up to 6 plants. A kind of little pillow contains fertilizer with clay, water and of course a seed.

The space lettuce is almost the same as Earth lettuce. NASA’s lettuces contain more phosphorus, sulphur, zinc, sodium, potassium and bacteria. The astronauts seems very happy to grow and eat fresh lettuce. The NASA thinks growing vegetables in spaceship could be very useful and vital for longer missions.

Here is the link of the article : https://www.the-scientist.com/news-opinion/space-grown-lettuce-is-safe-and-astronaut-approved-67237

A speech prosthesis

This article was written by Lisa Winter for The Scientist on 31st of March. In this article Ms Winter is talking about scientific test made with artificial intelligence and brain activity.

A study from Nature Neuroscience carried out an experience while a artificial intelligence interpret the signal of four persons who listened to sentences in a text. The participant are epileptic and already had electrodes in their brain. The goal for the artificial intelligence is to associate word with electric signal from participants brains. During this experience 50 sentences were read while brain signals and audio went into a learning algorithm

First results were very inaccurate, because an AI needs time and more samples to learn. But with time the IA increase its accuracy. For example the IA understand «the ladder was used to rescue the cat and the man» as «which ladder will be used to rescue the cat and the man». This technology could be used for silent person or with someone who has a locked-in syndrome.

Here is the link from the original article : https://www.the-scientist.com/news-opinion/artificial-intelligence-decodes-speech-from-brain-activity-study-67357

SpaceX has won a big NASA contract to fly cargo to the Moon

This article was written by Eric Berger for arstechnica.com on 27th of March 2020. The author talks about the recent contract between Space X and the NASA.

NASA would like to deliver a cargo to a proposed station in orbit around the Moon called the Lunar Gateway. The company asked other companies to make the delivery. Finally, the Elon Musk’s company Space X won the contract. Last years, the Falcon Heavy has proven himself. This rocket will deliver spacecraft called the Dragon XL to the station.

NASA Administrator Jim Bridenstine says : “This contract award is another critical piece of our plan to return to the Moon sustainably”. Mr Bridenstine added : “The Gateway is the cornerstone of the long-term Artemis architecture”. The main goal is to discover more in the deep space and to prepare a mission for Mars.

This project costs 7 billion dollars for logistics supply and hire a company for the delivery services contract. Space X will earn a lot of money on this contract. But the first missions flight will not be before mid 2020s.

https://arstechnica.com/science/2020/03/nasa-selects-spacex-to-deliver-cargo-to-lunar-orbit-in-the-2020s/

Entertainment services are going to reduce the debit

This article was written Hadas Gold for CNN Business in the 20th of March. Ms Goldas reports that Netflix and Youtube will reduce streaming quality for the next month due to the Coronavirus.

In this period a lot of person must stay at home. As a consequence, the internet trafic is increasing. Spokepersons from the different companies spoke about a solution to reduce this trafic. A Netflix spokeperson told that European Netflix trafic will reduce about 25% to provide a good quality service for all the members. Moreover, a Google spokeperson added that Youtube continue working with member state governments and network operators to minimize stress on the system.

As reported by Sandvine, an American networking company, video streaming account for 60 % of the global internet trafic. Netflix and Youtube account for 24 % of this 60%. Different networks companies are also seeing different kinds of increasing on the network, 75% for the gaming and 30% for the VPN connection. For the moment, no problem have been reported.

Professor Leung asks everyone to be careful to the internet overload. And to ask yourself if you really need to do a live video conference instead of recording a video which consume less internet.

Here is the link : click here !

UK safety tests of 5G

This article was written by Rory Cellan-Jones a technology correspondent for BBC news. The text is about the first UK safety test of 5G.

Each time a new technology is released there are fears about human health. The limits are set by the ICNIRP. Those limits are defined by the damage that affects the DNA and the human cells. But the tests that was made in UK didn’t show any risks where 5G was deployed.

On social network you can find community of anti-wave conspiracist. For example, you can find persons that think the coronavirus plague is due to 5G in Wuhan.

Today, the highest emissions without 5G that has been mesured is 1.5% the safe limit. Moreover, the author highlights the fact that the health authorities have declared the 5G safe for use.

Ransomware attacks in 2019

This article is about the increasing of cyberattack in 2019. It was written by Allen Kim for CNN Business. According to the cybersecurityu firm Recorded Future, 140 attacks were made during 2019 targeting local government, school and hospital.

To penetrate a network, the easiest way for hackers is to use phishing attack. The goal is to send an e-mail to a people in a company with a malicious link or a file attached. Then the virus encrypts your files and asks for a ransom in Bitcoin if you want your data back. Ransomware is continuing to growing and is very difficult to fight.

The principal target of the hackers is the hospital. When there are life in danger, the victim are more willing to pay the ransom. The DCH Health System in West Alabama was attacked in 2019. The hospital had to decline new patients incoming.

In 2018, 1493 victims were reported. The total losses is estimated at $3,621,857. The number of attacks decrease but the losses increase. Allan Liska, a senior solution architect at Recorded Future, warn on the fact that ransomware can be only a distraction carried out by nation state attackers.

Finally, the American will have to be careful with the future election because the vote system can also be vulnerable to ransomware.

A new technology : Li-Fi

In this article Alistair Banham, the CEO of PureLifi deals with the impact of the Li-Fi on the technology. Mr Banham describes this new telecommunication way and shows how it can be an alternative of the usual data transport way (4G, Wi-Fi, etc…).

As “Wi” in Wi-Fi means wireless “Li” in Li-Fi means light. The Li-Fi provides data from lightbulbs faster and more secure than Wi-Fi. Everyone has bulb socket at home. So, this technology will be easy to deploy.

The goal of the Li-Fi is not to replace the Wi-Fi, the PureLifi CEO explains that Li-Fi and Wi-Fi are complementary. He argues that in the future Li-Fi, Wi-Fi and 5G will give the greatest possible speed and bandwidth.

Li-Fi increases the security of the other RF technologies. For example, the light cannot pass through walls, so your neighbors cannot access to your data easily. It could help a lot of domain like finance or pharmaceutic where the data have to stay private.

As said previously, the Li-Fi will be very simple to deploy in a house. This will be as simple as plug a bulb in a bulb socket. This universal socket will help to connect our world a bit more.

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