from the world's big
This is the damage a tiny speck of space debris can do at 15,000mph
Space is not the place to put waste, as it turns pretty much anything into a high-velocity projectile capable of causing incredible damage.
Space isn't as spacious as it should be; it's full of space debris, small amounts of scrap, trash, and machinery that humans have abandoned to Earth's orbit. The ISS has cataloged about 500,000 of these small pieces and they hurtle around our planet at about 15,000mph. Or 14.17 g-force. Or 24,140kph.
An anonymous user on Reddit, who claims to work in the aerospace field, posted an image of what a 1/2oz of space debris can do to a block of solid aluminum. This test was done by a light-gas gun in close quarters and shows how much damage even a tiny amount of space debris can do:
Pretty scary, huh? It should be noted that although this looks enormous, the crater is about 5 inches deep. Having said that, it's caused by something about the size and weight of an eraser on the end of a pencil.
The ISS (International Space Station) is about the size of a football field, and thus an easy target for space debris. To solve this, it has to move their orbit to make sure they don't get hit. Every once in a while, they get hit by pieces the size of a paint chip and need to repair the ship for weeks.
What's that? Do you want another interesting space debris fact? Well, during the height of the Cold War in 1965-1967, the U.S. fired hundreds of thousands of tiny needle into space to try for what could best be described as high-powered radio signals. This, however, didn't work nearly as well as planned and the needles just clumped together into groups — turning these needles into high-velocity projectiles. 50 years later, there are about 38 of these clumps still in orbit, although sometimes they enter the Earth's atmosphere and burn up.
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Construction of the $500 billion dollar tech city-state of the future is moving ahead.
- The futuristic megacity Neom is being built in Saudi Arabia.
- The city will be fully automated, leading in health, education and quality of life.
- It will feature an artificial moon, cloud seeding, robotic gladiators and flying taxis.
The Red Sea area where Neom will be built:
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A new study suggests that an old tuberculosis vaccine may reduce the severity of coronavirus cases.
- A new study finds a country's tuberculosis BCG vaccination is linked to its COVID-19 mortality rate.
- More BCG vaccinations is connected to fewer severe coronavirus cases in a country.
- The study is preliminary and more research is needed to support the findings.
Professor Luis Escobar.
Credit: Virginia Tech