[-] sheepy@lemm.ee 4 points 6 days ago* (last edited 6 days ago)

For the sake of simplicity, let's say you have negligible mass, while the two masses, m1 and m2, have equal masses and sizes. Everything is moving at some velocity in a vacuum.

When the two masses are touching, the Centre of Gravity is midway between their Centres of Mass, which in this scenario would mean it is where they touch.

When you pick up m2, an equal and opposite force would push m1 away. Because they both have equal mass, both would end up the same distance away from the CoG. If you lifted m2 on your head, the CoG would be right at the middle of your height.

For as long as you're holding m2, your body is resisting the force of attraction due to gravity between m1 and m2. When you drop m2, both it and m1 accelerate towards the CoG. When they meet, the energy you put into lifting m2 would be converted into heat in the collision. From an outside observer, while you were doing all that, the CoG was moving in a perfectly straight line with no change in velocity.

Now, if you instead threw m2 away from m1 faster than its escape velocity, then that would change the velocity. If m1 and m2 weren't equal in mass and size, the CoG would still be moving in a straight line, but the distance m1 and m2 moves away from the CoG would be proportional to their masses.

[-] sheepy@lemm.ee 15 points 1 week ago

Basically all of hydrogen production is sourced from fossil fuels.

[-] sheepy@lemm.ee 43 points 2 weeks ago

Toxic masculinity makes men go blind and die rather than follow the Golden Path.

[-] sheepy@lemm.ee 32 points 2 weeks ago

Having any mods enabled stops you from getting Steam achievements. A small price to pay for Squeak Through.

[-] sheepy@lemm.ee 34 points 4 weeks ago

The white flag is, per international treaties, a signal you want to communicate with the other side regarding a truce or surrender. It's not a free "get out of jail" card when you're retreating.

[-] sheepy@lemm.ee 11 points 1 month ago

Yes, but 50 rounds are more likely to be hit than just 1. And if you put them in a spot that's going to be shot at a lot, say the turret, you're less likely to walk away from a penetrating hit.

[-] sheepy@lemm.ee 49 points 1 month ago

FN P90's magazine turns the bullets 90 degrees by turning them with its feed geometry. It kinda looks like a slide for bullets if you squint hard enough. HK G11 uses about as many parts as in an average Swiss watch to do the same thing.

[-] sheepy@lemm.ee 11 points 5 months ago* (last edited 5 months ago)

Post has Rule

Pic is Meme

Flag is Win

[-] sheepy@lemm.ee 35 points 6 months ago

Please put an NSFW tag on this. I was on the train and when I saw this I had to start furiously masterbating. Everyone else gave me strange looks and were saying things like “what the fuck” and “call the police”. I dropped my phone and everyone around me saw this image. Now there is a whole train of men masterbating together at this one image. This is all your fault, you could have prevented this if you had just tagged this post NSFW.

[-] sheepy@lemm.ee 31 points 7 months ago

The Solomon approach to problem solving

[-] sheepy@lemm.ee 20 points 7 months ago

It's extremely cool of them to integrate some mods into vanilla. Vein miner, wall lamp and underground/hidden conduits were must-haves for me and so many others.

[-] sheepy@lemm.ee 23 points 9 months ago

Someone didn't watch the video until the end

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sheepy

joined 1 year ago