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Favorite space story: Y REI i tilthat TIL, the unconfirmed record for fastest moving manmade object is a manhole cover propelled by a nuclear detonation. A high-speed camera trained on the lid caught only one frame of it moving upward before it vanished-which means it was moving about 125,000 miles per hour via reddit.com kaleighbytheway I'm reblogging myself because I read the source. The lead scientist involved theorized that it was going fast enough that A) it would not have burnt up in our atmosphere, and B) it would not have been caught in Earth's or- bit. Essentially meaning, the first man made object launched into space was a manhole cover that's still traveling the cosmic abyss. theboringprincess YEET kinkstertime Earth escape velocity is just under 7,000 miles per hour. This was traveling almost 18 times that speed. That thing is definitely out in space. And not just in orbit about earth either, it's fuckin *gone* gone! kinkstertime Wait I did more research!!! From the earth's surface the escape velocity from the entire fuckin solar system is under 30,000 miles per hour. Bout one quater of the speed that thing was going. I can't believe the first, and fastest, interstellar message we sent was the equivalent of squeezing the lid off a pringles tube at your friend. O ripleyandweeds SEE YOU SPACE COWBOY .. teaboot The level of absurdity equal to that of a Douglas Adams novel T theonetruegemini Aliens declare war on earth after a manhole cover punches a fucking hole in their planet Favorite space story
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Sky boat: SKY BOAT WITH TURNING WINGS Normal sky boats have to go fast so the air This boat works just like those sky boats, but hits their wings hard enough to hold them If a normal sky boat had wings that went it uses a cool idea: Instead of the whole boat faster than its body, the wings would fly up. If they fly too slow, they fall. (Sometimes going fast, only its wings go fast. The rest away, but this boat's wings go in a circle. of the boat can go as slowly as it wants-or That keeps them near enough to hold on to while still going around fast enough to fly falling makes them go fast enough to fix it!) even stop and sit in one place in the sky. POWER SPINNER SPIN CHANGER BOAT HANGER TURNING WINGS This is a fire water machine that works like a sky boat pusher, but this kind of boat uses all the spinner's power for turning the stick holding the turning wings. Hot air comes out, like in a sky boat pusher, but it doesn't push on anything. These are a lot like the wings on normal sky boats, but they go around instead of forward. The boat hangs under the wings, and this piece of metal holds them together. To work best, the power spinner needs to turn very fast, but the wings can't go around that fast. The spin changer uses wheels with teeth to make the wings turn more slowly than the power spinner. WING CONTROLLER This is a machine for making small changes to how the wings are turned as they swing around, which changes how they push on the air. (It's a little confusing-you can read more about how it works below.) If the boat didn't have this box, the wings would turn the same number of times each second as the power spinner, and the ends of the wings would go a lot faster than sound. That would make them stop working, and probably break off. POINTING WINGS These wings keep the boat pointed straight. (The pusher next to it helps with that, too.) CONTROL LINES These use water to push the wing controls around (see below). COOL AIR COMING IN HOT AIR GOING OUT (but not helping to push) WINDOW TA TURNING STICK This stick turns the end pusher. RADIO STICK END BLOWER When the boat's wings turn, it pushes the boat in the other direction. This end blower pushes back, keeping the boat from spinning. This line feels radio waves. BOTTOM WINDOW AH, YES, THEY GO THE OFIER WAYIN TRE SOUTHERN HALF OF THE WORLD BECALISE OF THE EARTH's SPA. When your boat can land straight down, it helps to be able to look down. LAND FEET DD YOUR MND FALL OUTOF YOUR HEAD? Some sky boats use these instead of wheels, since they often land in places like grass or dirt where wheels get stuck In a few countries, sky boat wings turn right. Most turn left. BENDING WINGS A sky boat's wings can turn so that they're going straight into the wind, or so that the wind is pushing them up. If they turn straight into the wind, they don't lift the sky boat. HOW THESE SKY BOATS GO Sometimes, sky boat wings bend down while they're sitting on the ground. This might look like it would cause some problems, but it's normal! Wings that bend a little can be easier to control, and when they're swinging around, the force of the swing stretches them out straight. To go forward, a sky boat controls its wings so the one in the front goes straight into the wind, and the one in the back turns so it gets pushed up. tt 11 This makes the the sky boat lean forward. Before, the wings were just puling it up, but after it leans forward a little, they pull it a little forward, too. The more it leans, the faster it goes forward. If it leans too far, the wings will only pull it forward-not up. This causes bad problems. WHAT IF EVERYTHING BREAKS? If a normal sky boat stops working, it can keep going, slowly moving down from slowing down too much. It turns out that even when it's not flying forward, a turning-wing sky boat can do the same thing! The answer is that some people who were very good at machines figured out how to make a machine that turns the wings up and down as they go around. Lifting a lot WAIT, HOW DOES THAT WORK? You might wonder how a sky boat can turn its front wing and not its back wing. since the wings keep changing places. Not lifting Even though they're thin, turning wings can slow a falling boat almost as much as a big sheet. Rings Turning Not turning Sticks- When the engine stops, it lets go of the turning stick so the wings can spin. If the wings are turned in the right direction, the air going through them will make them spin faster, and the air rushing past pushes up on them, slowing the fall. The edge of each wing has a stick on it, and these sticks run to a ring. This ring spins with the wings and turning stick, and sits on top of another ring that doesn't spin. To go forward, the driver uses a control to turn the bottom ring, which turns the spinning top ring, too, so it's higher on one side. When a wing is on that side, its stick pushes its back edge up, so it goes straight into the wind and doesn't lift at all. When it goes around to the other side, its back edge gets pulled down, making it lift a lot. It may seem strange that turning the wings could help push up on the boat when there's no power turning them. But you may have seen this kind of free-turning lift happen without knowing it, because trees use it. A sky boat with turning wings needs more air to push against than a normal sky boat. Up high, where normal sky boats fly, the air is thin because it's closer to space. Very few turning-wing sky boats can fly to the tops of the tallest mountains, but normal sky boats can fly over them with no problems. Trees make babies by dropping tiny wooden tree eggs on the ground. To help the trees spread farther, some trees put small leaf wings on their eggs to slow their fall so the wind can blow them. The wings aren't very big, so they aren't able to slow the eggs much-but they turn. That lets them fall very slowly and blow very far. So don't worry if your sky boat turns off. It can still fly, just like a tiny spinning leaf, carrying you to the ground alive and safe. HOW HIGH CAN A SKY BOAT GO? Normal sky boat Turning-wing sky boat But a turning-wing sky boat can still go farther above the sea th Sky boat

Sky boat

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