Tomon2
Tomon2 t1_j9sde6t wrote
Reply to comment by AquaVada in Homo sapiens may have brought archery to Europe about 54,000 years ago by Yazan_Research
Funny you mention kangaroos, it's likely that only the tree kangaroos of PNG have been hunted with bows.
Indigenous Australians never developed bow hunting technology - instead using spears and Woomera (spear throwers), along with boomerangs to hunt large game like Australian kangaroos.
Tomon2 t1_j8pbfy7 wrote
Reply to comment by boones_farmer in Earth changing seasons. by ooMEAToo
I mean, the gif shows it pretty clearly.
Tomon2 t1_j2d9wx0 wrote
Reply to comment by Reali5t in SpaceX caps 2022 with record-setting 61st Falcon 9 launch by Master-Strawberry-26
I don't live in the same country as you, for starters.
It's been shown, copious numbers of times, just how bloated the medical insurance industry is in the US. Give me my government-funded universal healthcare any day.
Sure, the private industry has some highlights, but it's a mess you guys have over there.
Tomon2 t1_j2d6uwy wrote
Reply to comment by Reali5t in SpaceX caps 2022 with record-setting 61st Falcon 9 launch by Master-Strawberry-26
Not true. The health industry would like a word.
Tomon2 t1_j1gfdun wrote
Reply to comment by Vagabond_Grey in Russia may need to send a rescue mission to the International Space Station for 3 astronauts after a leak in their Soyuz capsule by A_Lazko
Once you've made it to the "bail-out zone" - you're basically in the clear anyway. You're moving slow and cool, and you can let the capsule's parachutes do the work.
Getting them to that point is the dangerous and difficult but that we're currently worried about.
If you want to learn and play around with orbital mechanics and structures, I'd recommend playing Kerbal Space Program - or waiting til Feb and catching it's long anticipated sequel.
Lots of YouTube tutorials to help you with the mechanics, but a great way to see and feel and solve the various challenges there are with space travel.
Tomon2 t1_j1gd73m wrote
Reply to comment by Vagabond_Grey in Russia may need to send a rescue mission to the International Space Station for 3 astronauts after a leak in their Soyuz capsule by A_Lazko
It's a good question. There's a couple of considerations and engineering challenges before you can get to a safe point of parachuting and landing.
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The ISS is orbiting. Just stepping out of it means you're also orbiting. What that means is that it's moving so fast in one direction, it's constantly falling and missing the earth. What you would need to do is slow down the individual's velocity in the direction of orbit - some kind of rocket or jet-pack style tech that blasts them in the opposite direction of the ISS orbit path - that way, when they're falling, they'll actually fall and "hit" earth.
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Reentry. Before they hit denser air, they're gonna pick up a lot of vertical speed. Considerably more than the red bull stunt guy had. As they hit the atmosphere, they're gonna make a lot of friction and heat up. So they'll need some kind of protective heat-shield until they slow and cool down to the point that a parachute is viable.
It's not impossible - but once you put together a small rocket motor and a heat shield for a couple of people, you start looking like a conventional re-entry vehicle real quick.
Tomon2 t1_jdu3at6 wrote
Reply to comment by inferno493 in LPT : When pitching baseballs for little kids to learn batting throw them fast enough so they travel in a straight line. by KingBooRadley
Down know why the down votes, all thrown objects travel in parabolic arcs unless you hit escape velocity.