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Tiny ‘dumbbells’ that spin 60 billion times a minute may help solve quantum mysteries

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Spinning objects are hypnotic and fascinating, as last year’s fidget-spinner craze overwhelmingly demonstrated. But even the fastest fidget spinner trails the new reigning champion of fast-whirling objects: a tiny dumbbell that can rotate 60 billion times per minute.

It’s enough to make your head spin.

Spin doctors — er, researchers — recently created the nanoscale rotor and levitated it in a vacuum, blasting it with lasers to set it spinning. Their research, described in a new study, could help reveal how different substances respond under extreme conditions and how friction behaves in a vacuum, Tongcang Li, an assistant professor of physics and astronomy, as well as electrical and computer engineering, at Purdue University, said in a statement.

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Researchers at Purdue University have levitated a nanoparticle in vacuum and driven it to rotate at high speed, bringing them one step closer to figuring out the properties of vacuum and quantum mechanics.

Researchers at Purdue University have levitated a nanoparticle in vacuum and driven it to rotate at high speed, bringing them one step closer to figuring out the properties of vacuum and quantum mechanics.Vincent Walter / Purdue University

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Click link below for article:

https://www.nbcnews.com/mach/science/tiny-dumbbells-spin-60-billion-times-minute-may-help-solve-ncna894121

 

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Trump says he’s considering pardon for Muhammad Ali, who doesn’t need one

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President Donald Trump said Friday he was considering granting a posthumous pardon for Muhammad Ali — prompting a lawyer for his estate and family to say thanks, but no thanks: The boxing great had his criminal conviction overturned by the Supreme Court nearly 50 years ago.

Trump, who has issued several pardons and commutations in recent weeks, told reporters that he was “thinking about Muhammad Ali,” for a pardon.

“He was not very popular then, his memory is very popular now,” Trump said at the White House shortly before a departure for the G-7 summit in Quebec City, Canada. “I’m thinking about that very seriously.”

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Image: American heavyweight boxing champion Muhammad Ali walks through the streets with members of the Black Panther Party, New York, Sept. 1970.

American heavyweight boxing champion Muhammad Ali walks through the streets of New York with members of the Black Panther Party in 1970. David Fenton / Getty Images

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Click link below for article:

https://www.nbcnews.com/politics/donald-trump/trump-says-he-s-considering-pardon-muhammad-ali-thousands-others-n881261

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Climate change killed the aliens, and it might kill us too, new simulation suggests

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Did climate change already kill all the aliens we’ve been searching for?

According to astrophysicist Adam Frank, it’s certainly a possibility — and whether humans are doomed to the same fate may already be out of our hands.

Frank, a professor of physics and astronomy at the University of Rochester in New York, is the lead author of a new paper published May 1 in the journal Astrobiology that aims to take what Frank calls a “10,000-light-year” view of anthropogenic (human-caused) climate change. Using mathematical models based on the disappearance of a real-life lost civilization here on Earth (the former inhabitants of Easter Island), Frank and his colleagues simulated how various alien civilizations might rise and fall if they were to increasingly convert their planet’s limited natural resources into energy. [12 Possible Reasons We Haven’t Found Aliens]

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Image: Easter Island

A case study of the inhabitants of Easter Island served in part as the basis for a mathematical model showing the ways a technologically advanced population and its planet might develop or collapse together.Michael Osadciw / University of Rochester illustration

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Click link below for article:

https://www.nbcnews.com/mach/science/climate-change-killed-aliens-it-might-kill-us-too-new-ncna880671

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Do you know…?

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I found this very interesting and informative, 😉 enjoy!

                    Tidbits of things you might not know.

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1. A Strawberry isn’t a berry but a Banana is.

2. Avocados and Watermelon are berries, too.

3. Cashews grow on Trees like this:

4. And Brussel Sprouts grow in long stalks like this:

5. Chocolate Milk was invented in Ireland.

6 Ketchup used to be sold as Medicine.

7. Carrots were originally purple. 

8. McDonald’s sells 75 Hamburgers every second of every day.

9. Yams and sweet Potatoes are not the same thing.

10. Ripe Cranberries will bounce like rubber balls. 

11. An average ear of Corn has an even number of rows, usually 16.

12. Betty White is actually older than sliced Bread.

13. Humans share 50% of their DNA with Bananas.

14. Honey never spoils. You can eat 32,000-year-old Honey.

15. Peanuts are not Nuts. They grow in the ground like this, so they are legumes.

16. Vending machines are twice as likely to kill you than a shark is.

17. Coconuts kill more people than Sharks every year.  So do Cows.

18, Pound cake got its name from its original recipe, which called for a pound each of Butter, Eggs, Sugar, and  Flour.

19. The probability of you drinking a glass of Water that contains a molecule of Water that also passed through  a Dinosaur is almost 100%.

20. Honey is made from nectar and Bee vomit.

21. Quinoa is the seed of this plant:

22. Kiwis grow on Vines: 

23. Ginger is the root of a Plant: 

24. And Cinnamon is just the inner part of this Tree: 

25. Artichokes are Flowers that are eaten as buds. This is what they look like when flowered:

26. “Spam” is short for spiced Ham.

27. Popsicles were invented by an 11-year-old in 1905.

28. Apples, like Pears and Plums, belong to the rose family.

29. The official state Vegetable of Oklahoma is the Watermelon. 

30. Peas are one the most popular Pizza toppings in Brazil: 

31. There are over 7,500 varieties of Apples throughout the World, and it would take you 20 Years to try them all if you had one each day.

32. The twists in Pretzels are made to look like arms crossed in prayer

33. Canola oil was originally called rapeseed oil, but renamed by the Canadian oil industry in 1978 to avoid negative connotations. “Canola” is short for Canadian oil.

34. And no matter what color Fruit Loop you eat, they all taste the same.

 

You may not know:

 

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Massive Volcanic Cracks Ripping Home Apart on Hawaii’s Big Island

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Massive cracks rip beneath a doomed home near Kilauea volcano in Hawaii.

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Massive Volcanic Cracks

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Click link below for video:

https://weather.com/news/weather/video/massive-volcanic-cracks-ripping-home-apart-on-hawaiis-big-island

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Demon

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Is there a demon in the picture below?

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Do you see the demon in the lava from Hawaii’s kilauea volcano?

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Roam Robotics Announces $2500 Soft Exoskeleton For Skiers and Snowboarders

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Over the past few years, we’ve heard some vague suggestions that powered exoskeletons will, “at some point soon,” be available for applications besides meeting the needs of people doing physical rehabilitation, industrial workers, and the elderly. The rest of us could get plenty of use out of exoskeletons too, for any situation in which our bodies need to support more weight for longer than would otherwise be comfortable. It’s understandable that most exoskeleton companies aren’t going for the consumer market right away, because exoskeletons are expensive, and folks like you and me simply wouldn’t be able to justify the cost.

Yesterday, Roam Robotics (which was birthed from company-known-for-doing-weird-things, Otherlab) announced that it’s planning on selling a new kind of exoskeleton designed to offer leg support to skiers and snowboarders. The cost? Just $2500. The gadget, powered by soft pneumatic actuators, will be rentable at ski resorts for way, way less than it’s full purchase price. Roam says that without any training at all, it’ll enable you to ski better for longer without getting nearly as tired.

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Roam Robotics' skiing exoskeleton in action on the slopes.Photo: Roam Robotics
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Click link below for article:

https://spectrum.ieee.org/the-human-os/biomedical/bionics/roam-robotics-announces-2500-soft-exoskeleton-for-skiers-and-snowboarders

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