YouTuber Wins World Record For World's First Retractable Lightsaber
A YouTuber has entered the Guinness Book of World Records after creating the world's first retractable "lightsaber". It can produce a 1-meter (3.28-foot) long plasma blade when initiated – far from just a fancy torch, the 2,800°C (5,072°F) blade can cut through steel. The difficult part – or one of many difficult parts – was making the burner and gas distribution system small enough to fit inside the lightsaber handle.
Unexplained Radio Signal Unlike Anything Seen Before Found By Astronomers
Around 4,000 years ago some sort of dense, intensely magnetized object emitted enormous amounts of energy. Every 18 minutes this huge energy beam was pointed towards Earth's current location. Having crossed the vastness of space, in 2018, some of it landed on a radio telescope in the Western Australian outback. The radio wave bursts look different from anything we have seen before and require a fundamentally new explanation, which astronomers don't have yet — but they have ruled out aliens.
These Four Factors Are Linked To Higher Long-COVID Risk, Study Suggests
As per a new study, there are four key factors that appear to be linked to a higher risk of experiencing long-COVID. Scientists reached these findings by collecting blood and swab samples from over 300 COVID-19 patients during the initial phase of their infections, then two to three months later. Using these four factors, the researchers gained a solid idea of a person’s chances of developing long-COVID.
Oldest Large-Capacity Brain Case May Be First Known Denisovan Skull
The partially pieced together skull of an early human has a brain capacity at the larger end of modern standards, yet dates between 200,000-160,000 years ago. Researchers conclude the brain capacity was 1,700 cm3, above average for a person living today. The species of the skull's owner remains uncertain, but it is probable this represents the first Denisovan skull ever found The discovery indicates large brains appeared earlier than previously recognized.
Scientists Regrow Frog’s Lost Leg With Five-Drug Cocktail
Frogs with lost legs have been able to regenerate functional limbs using a wearable bioreactor that contains a cocktail of five drugs. Each drug fulfilled its own purpose, including reducing inflammation, inhibiting the production of collagen that would lead to scarring, and encouraging the new growth of nerve fibers, blood vessels, and muscle. It’s suggested this novel approach could potentially be applied to humans with lost limbs in the years and decades to come.
FEATURED
Why Do People Think A "Crypto Winter" Is Coming?
If traders are to be believed, things are about to go full Game of Thrones. In short: Winter is Coming. But what does this mean, is it really going to happen, and should you be worried?
