hwillis

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TROPHY CASE

Homemade jet engine by rager32in engineering

[–]hwillis 3 points4 points ago

also it does not appear to have stators, so there is no axial compression

12 hours after finishing my 3D-printer by aNt-ein DIY

[–]hwillis 3 points4 points ago

thats the idea. People are/have designed fully printable linkages so you don't need things like threaded rods. People have even printed circuit boards, but of course things like motors etc are a ways off.

Russian Rotary Vane Engine by catch878in EngineeringPorn

[–]hwillis 1 point2 points ago

http://en.wikipedia.org/wiki/Swing-piston_engine

Basically the pistons run around in a toroid, compressing and expanding against each other using a very complicated-looking coupling. Looks like it would vibrate a lot

Next Level Copypasta 2.0 [xpost from /fit/] by Rhyme17in fitnesscirclejerk

[–]hwillis 0 points1 point ago

UTO got better at singing I see

F1 engines are so advanced that their engineers can make the car sing a song. by CanadaEh97in videos

[–]hwillis 0 points1 point ago

v8, v16, i6, or any flat engine. I was just assuming you couldn't have an engine react that fast with artificial balancing.

F1 engines are so advanced that their engineers can make the car sing a song. by CanadaEh97in videos

[–]hwillis 0 points1 point ago

not actually a follower of the sport. V10s wouldn't be naturally balanced, I assumed they'd go for V8s or something. Do they just let them vibrate? no counterbalance?

Apparently the creators of Deus Ex: Human Revolution are fans of the movie Demolition Man. by gperlmanin gaming

[–]hwillis -1 points0 points ago

YOU BTRAED DE LAWR! LOOOOOOOOOOAAAAAAAAAAAAAGGGGGGGHHHHHH

F1 engines are so advanced that their engineers can make the car sing a song. by CanadaEh97in videos

[–]hwillis -4 points-3 points ago

mechanically there are a few things that make this much easier too. Street cars have flywheels and loads of inertia added to keep the idle speed low and the engine balanced. f1s are naturally balanced, making them very lightweight, and have very high idle speeds, so the throttle response is very good.

Justice – Helix (Lazerdisk Party Sex Remix) by rkonein electronicmusic

[–]hwillis 0 points1 point ago

ehh... its more like if dnf had been a turn-based strategy game.

LEAP Motion could be more accurate than Kinect by NoyzMakerin videos

[–]hwillis 0 points1 point ago

doesn't even compare, unfortunately. LEAP has .1 mm accuracy compared to the ~cm resolution (depending on range) of the kinect, completely independent of computing power, and also appears to have lower latency, in a usb key sized package. I'd love to know how it works.

Guy imports MS Paint into an audio program. Cool sounds result. by 067714877063in electronicmusic

[–]hwillis 2 points3 points ago

I'm 99% sure that doesnt even make sense

Our dodgeball team won the first round for humanity! by eh_steve7195in masseffect

[–]hwillis -4 points-3 points ago

on the left?

Our dodgeball team won the first round for humanity! by eh_steve7195in masseffect

[–]hwillis 1 point2 points ago

of people wearing shirts

Our dodgeball team won the first round for humanity! by eh_steve7195in masseffect

[–]hwillis 4 points5 points ago

I guess fourth from left. Whats up with the choking in front?

These Japanese hobbyists are building a 12-foot-tall pilotable mech by DrJulianBashirin gadgets

[–]hwillis 0 points1 point ago

hm. Very fishy, but I guess its possible. Thats a pretty stupid design flaw if it is- it should be very easy to recognize that type of jamming, as the amount of noise would be incredible. I guess its still a new area, people are still fixing the problems a human would recognize. I stand by what I said though, I don't think a well-designed system would be vulnerable except in exceptional circumstances, like breaking the entire encryption. Who knows though, maybe quantum computers will make cryptography trivial. I doubt it though.

These Japanese hobbyists are building a 12-foot-tall pilotable mech by DrJulianBashirin gadgets

[–]hwillis 1 point2 points ago

oooooh. yeah. I've destroyed my brain with math and caffeine it seems

These Japanese hobbyists are building a 12-foot-tall pilotable mech by DrJulianBashirin gadgets

[–]hwillis 0 points1 point ago

So unlikely that it has already happened. Iran spoofed the GPS signal to capture an American drone.

Was unaware. Pretty surprising that's possible. Got a link to something with specifics?

These Japanese hobbyists are building a 12-foot-tall pilotable mech by DrJulianBashirin gadgets

[–]hwillis 1 point2 points ago

psh, plenty of students procrastinating on finals. 21 hours to go...

Touche touch sensing - New applications for touch lamp technology? by nomel23in electronics

[–]hwillis 0 points1 point ago

I really love this, very clever. I really want to see the limits of the technology but the processing power gets huuuuuuuge. I'd really like a cylindrical array of 8x8 electrodes with a comparable frequency sweep, and a really high refresh rate... say .1 milliseconds. 640,000 ffts at a few mhz is pretty challenging for realtime though, even without a state vector machine. And thats ALSO assuming you can get the data (.5 gigabytes/s) to a desktop. You'd need an arm with an 10 gbs ethernet port... barely possible

These Japanese hobbyists are building a 12-foot-tall pilotable mech by DrJulianBashirin gadgets

[–]hwillis 4 points5 points ago

CS/ECE here: the likelihood of a large robot/any robot being hacked is null to zero. The signal can be blocked but thats pretty much it. On the other hand, computing power needs to improve by 2-3 orders of magnitude to make autonomous robots feasible on a battlefield.

Current research is overwhelmingly oriented towards large clusters of small robots: they require less maintenance, have longer ranges than equivalent-mass single platforms, and it is very unlikely materials will improve to the point that a large robot/machine is feasible energy-wise or strength-wise any time soon.

Also jamming a drone would require a massive airborne jammer which could still keep up with the drone; its a lot easier to jam things on the ground (though still very hard)

Large mechs are never going to happen at this point unless hobbyists make them. The closest thing I can see happening is this: if we can develop extremely powerful railguns but not miniaturized power supplies, and still have reasons to need snipers in mountainous ranges/hazardous territory, we may need a legged power supply (think big dog) to power the railgun. Railgun (or any electronic, long range weapon) technology is very unlikely to be miniaturized to this extent though.

Another thing I could see happening is if we started using biomechanical robots. Muscle has an extremely high power density, and relatively low density fuel requirements (though ATP in solution would be very expensive to create). Something like a mountain goat crossed with an elephant, with metal bones and composite skin would certainly have a place in the army to replace trucks in rough terrain. Napoleon crosses the alps all over again... Anyway, hats me speaking out my ass.

I made this yesterday. It's a necklace charm. by SymzTewin steampunk

[–]hwillis 0 points1 point ago

stator

Inside LSD (Full Length Documentary) by PinkSlimeIsPeoplein science2

[–]hwillis 1 point2 points ago

This is a hilariously terrible documentary.

Guests In Pripyat by nomdewebin urbanexploration

[–]hwillis 2 points3 points ago

Watch out for the anomalies, stalker.

Spring time in SoCal by Filburt_Turtlein CampingandHiking

[–]hwillis 3 points4 points ago

kinda hate y'all

This happened a few days ago...sorry duc rider by westerkittenin motorcycles

[–]hwillis 5 points6 points ago

naw, naw, you have it all wrong. First you swing your left leg up and over the bars and use it to hold down the clutch. THEN you wave. Then you fall over and break open your tank and die a fiery death.

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