Connect with us

Tech NDTV

Ever Wonder What’s on the Menu for Astronauts?

Neil Armstrong may have taken that first small step for man onto the moon, but it was John Glenn who took the first slurp of applesauce for humankind.

Until he ate while orbiting Earth in 1962, scientists at NASA weren’t sure humans could swallow and digest food while in space. Luckily, he chowed down in zero gravity with no trouble. Today’s astronauts sometimes spend months at a time living in the International Space Station (ISS), so they’d get pretty hungry without a few snacks!

Of course, while the human body is happy to take in a meal while hovering 250 miles above Earth, the process of cooking and eating food isn’t exactly the same as it is back home. That’s why NASA scientists are still working hard to perfect astronaut menus. A healthy diet is even more crucial for space farers than it is here on the surface, because spending time in space makes your body start to lose bone and muscle mass. NASA has to figure out how to send food up in a rocket, store it for as long as possible and make sure it delivers a perfect balance of nutrients – and it has to keep astronauts from getting bored, too!

“Imagine trying to eat the same food for every meal for six months. You may get tired of the food and eat less than you need to maintain weight, health and performance. That’s why we have to make sure there’s a large variety of healthy food available for the astronauts to make choices,” says F. Ryan Dowdy, ISS food system manager at NASA’s Johnson Space Center in Houston, Texas.

Astronauts have about 200 food items to pick from. According to Dowdy, a lot of the options are surprisingly similar to meals we eat on Earth.

“Whether it’s macaroni and cheese or chocolate pudding cake, it’s important for the astronauts when eating to be reminded of home,” he says. “Food can be an important psychological comfort in the stressful environment of space.”

It’s the preparation that’s unique: Food often has to sit in storage for six months before it even goes into space – and last for weeks or months at a time once it’s up there – so NASA designs everything with a shelf life of at least two years. Macaroni and cheese is freeze-dried (meaning that most of the moisture is removed, which makes it safe to store at room temperature), and astronauts add hot water to it on the space station. Chocolate pudding cake is preserved similarly to canned food, but NASA puts it in a flexible pouch so it takes up less space.

Some Earth foods are already perfectly fit for zero-gravity consumption. Tortillas, for example, are a great alternative to bread – they last a long time in storage, and they don’t form crumbs that float around and get caught in important parts of the ship. Astronauts can also request small quantities of fresh fruits and vegetables whenever NASA sends supplies up, but for the most part, they’re eating various combinations of super-durable stored foods.

As NASA looks to the future of spaceflight – with missions to Mars, and perhaps even farther – the agency has to design even more durable food. It takes about eight months to get to Mars, and astronauts will have to bring food for the journey home, too. Dowdy says NASA is working to extend the shelf life of its foods to around five years, but experiments in space farming are also part of the plan.

Astronauts on the ISS are able to farm plants such as lettuce in small quantities, but Dowdy says it will take some time before this is a sustainable source of calories. He thinks 3D printed treats may also be on the menu someday soon. One thing is for sure: It’s going to take a lot of scientific know-how to feed the space explorers of the future.

© The Washington Post 2018






Source link

Continue Reading
Advertisement
Click to comment

Leave a Reply

Your email address will not be published. Required fields are marked *

Tech NDTV

Apple Considering TV Streaming Dongle to Counter Chromecast, Fire TV Stick: Report

With a view of kick off its content streaming service for the masses, Apple reportedly has plans to launch an affordable dongle. The dongle, which is likely to sit alongside the existing Apple TV, would compete against Amazon’s Fire TV Stick and Google’s Chromecast. The Cupertino giant notably launched the fifth generation Apple TV that dubbed Apple TV 4K in September last year to enable high-end viewing experience. The latest model supports 2160p playback as well as works with standards such as HDR10 and Dolby Vision.

The low-priced streaming dongle has been a part of internal discussions at Apple, reports The Information, citing people familiar with the development. The dongle is speculated to set the pitch for the upcoming video streaming service that is likely to take on contenders such as Amazon Prime Video and Netflix. Earlier this year, it was also reported that Apple could bring a subscription bundle to provide original TV shows, music service, and news content under one roof – somewhere similar to how Amazon drives its subscription-based Prime service that includes Prime Video, Prime Music, Prime Reading, and Prime Now among other key services.

So far, Apple TV is available as the lone streaming device by Apple. While the latest Apple TV model ticks all the boxes – be it 4K video streaming or support for HDR10, Dolby Vision, and Dolby Atmos, it carries a starting price tag of Rs. 17,430 ($179 in the US) that is far expensive over the Chromecast and Fire TV Stick. Amazon even recently brought the Fire TV Stick 4K that comes at Rs. 4,999 ($49.99 in the US). This highlights the need for a low-cost Apple dongle.

The new dongle could help Apple widen its presence in the market of streaming media players. As per a recent report by Parks Associates, the ownership of streaming media players has grown from about six percent of US broadband households in 2010 to 40 percent at the beginning of 2018. The report also mentioned the Apple TV leads on the avenues of gaming and ease of finding something new to watch and purchasing new content. Data startup Thinknum also reported that Apple TV has now been the second most selling 4K streaming device in the US after Amazon’s Fire TV Stick 4K. This is despite the fact that the Fire TV Stick 4K is significantly lower than the Apple TV 4K.

Apple is also planning to bring a dedicated app for smart TVs that would work for its original content. The company is rumoured to have plans to spend $1 billion (roughly Rs. 7,100 crores) for its original shows. The content is expected to be available for free for viewers who own Apple devices.

In the recent past, Apple has signed some production deals to kick off the development of its content streaming service. The company also brought celebrities such as Oprah Winfrey on board to make a model competing with Amazon, Netflix, and other streaming services.

We need to wait for sometime to see what Apple is cooking up behind the scenes. Meanwhile, it is safe to take the report around the streaming dongle with a pinch of salt.

Affiliate links may be automatically generated – see our ethics statement for details.






Source link

Continue Reading

Tech NDTV

Realme 2 Pro, Realme 1 Bootloaders to Be Unlocked in Q1 2019, Realme Accessories Coming to India Soon

Realme 2 Pro, Realme 1 Bootloaders to Be Unlocked in Q1 2019, Realme Accessories Coming to India Soon

Realme will unlock bootloader of the Realme 2 Pro by January 15, 2019

Realme, a spinoff brand from Oppo, has taken the Indian market by storm with its affordable offerings including the Realme 1, Realme C1, Realme 2, and Realme 2 Pro. The phone maker has now announced that it will unlock the bootloader of the Realme 2 Pro by January 15, 2019. Even the Realme 1 will have its bootloader unlocked and kernel source released in the first quarter of 2019 itself. Other than that, the Realme 2 Pro is confirmed to get support for slow motion video recording in the first quarter next year. This feature will expectedly be made available via an OTA update on the smartphone. Realme mobile accessories are also said to launch in India before the end of this year.

Apart from the Realme 2 Pro, the company’s CEO Madhav Sheth took to Twitter to announce that “other Realme devices are being taken into consideration” for the slow motion video feature. In a video posted on his account, Sheth claimed that Realme mobile accessories, starting with Realme-branded earphones, will be unveiled in India before the end of this year. He also said that the new software UI, which is already being experienced by Realme 1 beta users, will roll out to all other Realme phones by the end of this year.

Ever since the launch of the Realme 1, the phone maker has been particularly swift in rolling out latest updates, Android security patches, and new features to its entire lineup. Just this week, the Realme 2 Pro received its latest software update which brought optimisations for selfie camera quality, optimisations for reminders, and the latest November 2018 Android security patch to the smartphone. The Realme 2 and Realme C1 already have the latest November security patch, and are expected to get ColorOS 5.2 soon.







Source link

Continue Reading

Tech NDTV

Xiaomi Mi TV 4S 75-Inch With 4K Display, HDR Support Launched

Xiaomi has expanded its smart TV portfolio with the launch of a 75-inch variant of the Mi TV 4S in China. The new variant will go on sale in the country from November 23, and its key highlights are the large display, sleek design, 4K screen, HDR support, and more. To recall, the Mi TV 4S already has 43-inch and 55-inch variants launched in the market, and now it’s making available another option for customers who prefer really big screens. Even the Mi TV 4 series introduced a 75-inch option recently in the market.

The Mi TV 4S 75-inch variant is priced at CNY 7,999 (roughly Rs.82,100), and will be made available on Xiaomi Mall and Mi Home Stores in China. To recall, the 43-inch model of the Mi TV 4S was launched earlier in May, and it has been priced at CNY 1,799 (roughly Rs. 19,100) and comes with a 4K Ultra HD display that has an 8ms response time, 60Hz refresh rate, and 178-degree viewing angle. There is a quad-core processor under the hood, paired with 1GB of RAM and 8GB of storage. The 55-inch variant got a curved display, 2GB of RAM, and 8GB inbuilt storage, and came with a price tag of CNY 3,299 (roughly Rs. 35,100).

Coming back to the Mi TV 4S, the television supports a 4K LCD display panel with narrow bezels and HDR support, and is built with aerospace-grade aluminium, brushed metal, and silver-grey metal finishes. It is powered by the 64-bit A53 quad-core processor, paired with 2GB RAM and just 8GB internal storage. Internal storage on the 75-inch Mi TV 4 was at 32GB. As mentioned, the TV supports HDR, and has Bluetooth, DTS-HD and Dolby audio, and Wi-Fi connectivity options as well.

Just like the other two variants, this 75-inch Mi TV 4S also runs on Xiaomi’s own PatchWall UI and it also brings along AI-based voice recognition. The remote also comes with a designated button to activate the voice assistant to operate the TV with easy voice commands. The device can be purchased after November 23 from the company’s official website.






Source link

Continue Reading

Trending

© Copyright Otimenews 2018. All rights reserved.