SpaceExploration
A Man fell from Space
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(Inside Science) — What do a volcanologist, a pulmonologist, and a glassmaker have in common? They all worry about bubbles. The physics of how bubbles form, behave and pop is crucial to understanding natural phenomena as well as many industrial processes. According to a new study appearing in the journal Science, scientists have been getting that physics wrong for at least a couple of decades.
The new findings suggest that instead of being driven by gravity, the collapse of bubbles that form on the surface of thick liquids is driven by surface tension, in a complex, unintuitive way. And to find the truth, all the researchers had to do was turn their experiment upside down.
The physics of a bubble depends on how thick — viscous — its fluid is. If a bubble floating on the surface of water is poked and popped, surface tension makes the bubble retract quickly and violently, vanishing in about a millisecond. But in a very viscous liquid, a surface bubble may take up to one full second to collapse. This gives researchers extra time to observe a complex interplay between forces that is perfect for studying the fundamental physics at work in bubble collapse.
Featured Image Source: ΔV Photos @DeltavPhotos via Twitter.
The United States reemerged as a space power with human spaceflight capabilities when SpaceX launched NASA Astronauts Robert Behnken and Douglas Hurley aboard the Crew Dragon spacecraft to the International Space Station (ISS) in May. The mission, referred to as Demo-2, was the first time the agency launched astronauts from American soil since the Space Shuttle fleet was grounded in 2011. A Falcon 9 rocket lifted off from Launch Pad 39A at the Kennedy Space Center in Florida, igniting a new era in human spaceflight. After a two-month-long stay at the orbiting laboratory, the brave pair returned aboard the Crew Dragon they called ‘Endeavour.’
Dragon Endeavour undocked from the space station’s Harmony module on August 1st. Astronauts Behnken and Hurley conducted a 19-hour return voyage. On August 2nd, Dragon reentered Earth’s fiery atmosphere at a speed of around 17,500 miles per hour with the astronauts aboard. The spacecraft experienced high temperatures over 3,500 degrees Fahrenheit. Then, it deployed its sets of parachutes to slow down and conduct a parachute-assisted splashdown in the Gulf of Mexico off the coast of Pensacola, Florida. It was the first splashdown of an American spacecraft carrying crew in 45 years. NASA Administrator Jim Bridenstine shared his excitement -“We have Splashdown! Welcome home Behnken and Hurley!” he said. It is the first time the company returns humans from space. NASA and SpaceX recovery teams arrived to the spacecraft aboard the ‘Go Navigator’ ship to pick up the astronauts and Dragon. The vessel features a medical room and a helicopter landing pad.
GPT-3, the largest artificial intelligence language model, is trained on an estimated 45 terabytes of text data run through 175 billion parameters. It can do more than just autocomplete, like generate code and write stories, just like a human — but it can make errors like a human too.
In hopes of helping clinicians pinpoint different stages of the disease as it advances.
Harvard geneticist Dr. George Church is “turning on” youth-promoting genes. In this exclusive interview Dr. Church explains how he expects to achieve human age reversal in the foreseeable future.
Scientifically reviewed by: Dr. Amanda Martin, DC, on August 2020. Written By Dr. Shelly Xuelai Fan.
It would be fun to die in Mars.
Imagine living in Texas a few decades from now and suddenly being possessed with the desire to visit the moon. Traditionally, the only way such a dream could become reality would be for you to go through the arduous process of becoming a NASA astronaut and then hoping that Congress would fund a back-to-the-moon program.
If SpaceX’s Elon Musk has his way, a new road will be devised to go to the moon — and Mars and beyond. The scrappy, entrepreneurial space launch company is planning to build an offshore spaceport to launch its Starship spacecraft. The rocket ship would not only fly to far distant destinations in space, but to similar offshore spaceports around the world. Travel to Europe and Asia would be cut from many hours to tens of minutes.
If he has his way, you will be able to travel down to the now-thriving port community of Boca Chica, possibly on a Hyperloop, the mass transit-system inspired by Elon Musk, and book passage on a SpaceX Starship for a vacation on the moon. You might look forward to hiking across the lunar landscape in a spacesuit, like Neil Armstrong so long ago and visiting the Tranquility Base monument and see where he and Buzz Aldrin first trod the moon’s surface.
In the end, we look back at our careers and reflect on what we’ve achieved. It may have been the hundreds of human interactions we’ve had; the thousands of emails read and replied to; the millions of minutes of physical labor—all to keep the global economy ticking along.
According to Gallup’s World Poll, only 15 percent of people worldwide are actually engaged with their jobs. The current state of “work” is not working for most people. In fact, it seems we as a species are trapped by a global work crisis, which condemns people to cast away their time just to get by in their day-to-day lives.
Technologies like artificial intelligence and automation may help relieve the work burdens of millions of people—but to benefit from their impact, we need to start changing our social structures and the way we think about work now.
Last year information was released concerning rejuvenation of the thymus which resulted in a reversal of the epigenetic clock an average of 2.5 years in a small trial of 9 people costing $10,000 per person. You can get this done too. A company has formed called Intervene Immune which will take on volunteers for the process. It is not funded so you would have to pay out pf pocket though eventually the cost may come down and they can provide financing. You do not have to travel to California to get this done. Cost prohibits me, and I may or may not be eligible as I have IBS though that is not on the exclusion list. I emailed them concerning all this which is how I got the information.
https://www.surveymonkey.com/r/TRIIMX
The TRIIM-X trial is an expanded pilot clinical study that will evaluate a personalized combination treatment regimen for thymus regeneration. The thymus is a part of the immune system that declines markedly with age, and regenerating it may prevent or reverse key aspects of immunosenescence (immune system aging) and potentially prevent or reverse key parts of the aging process more generally. The study will evaluate biomarkers for epigenetic aging and immunosenescence, as well as evaluate established clinical measures and risk factors for prevention of physical frailty, cancer, cardiovascular disease, diabetes, dementia, and also infectious diseases, including flu and COVID-19.
BYD, one of the world’s largest electric bus manufacturer, boasted recently that its zero-emission buses already covered more than 13 million miles (21 million km) in the U.S.
The buses sold in North America are made in Lancaster, California, where local transit agency — the Antelope Valley Transit Authority (AVTA) — just crossed the 3-million-mile mark of zero-emission operations using BYD buses.
Overall, the company sold buses to more than 50 customers across the country. According to BYD, the total mileage translated into: