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Japanese Chip Shutdown Causing Shortages

Dunark Re:The US comes out on top (121 comments)

If we have a catastrophic natural disaster in the US, we won't run into this problem

That doesn't work because we have catastrophic artificial problems.

more than 3 years ago

Going Faster Than the Wind In a Wind-Powered Cart

Dunark Re:I can almost see how it works.. almost (315 comments)

We all accept that this vehicle derives it's motion through the rotation of the propeller which drives the wheels.

No, the wheels drive the propeller. The wind still pushes against the propeller, and that's what pushes the car forward, but some of the energy is taken back from the wheels to turn the propeller and blow air backwards. The result is an addition to the wind speed. Alternatively, you can think of the propeller as part of the car that is going enough slower than the car that the wind can still push on it even if the car is going faster than the wind.

more than 4 years ago

Going Faster Than the Wind In a Wind-Powered Cart

Dunark I just made a mechanical demonstration (315 comments)

I used four rubber stoppers and a six-inch metal rod. Two stoppers were #10's, and two were #5's. I pushed the #5's onto the rod first so they met in the middle of the rod with the big ends almost touching. I put the #10's on the ends of the rod with the big ends on the outside. The result was an axle with two big wheels at the ends and two smaller wheels near the middle. I set it on the table, then I slid a ruler under the small wheels and pressed upward lightly. The big wheels touch the table top, the small wheels touch the ruler. Move the ruler back and forth in the rolling direction, and presto: The contraption rolls in the direction of ruler motion, but at a faster speed. Having aerodynamics involved makes analysis much harder, but I'm beginning to think that the described wind car might really work.

more than 4 years ago

NYS Senator Suggests Criminalizing Spyware

Dunark This bill will go nowhere. (322 comments)

In order to get to the Senate floor for a vote, this bill has to go through the Senate comittee on Commerce, Science and Transportation. This committee is chaired by Sen. John McCain (R, Ariz), who has already shown his disregard for the will of the people by promising that his committee would kill any bill that attempted to reverse the FCC decision that relaxed the limits on numbers of broadcasting stations that single companies can own.

McCain is a confirmed toady of big business. He'll never let anything that might inconvenience his patrons become law.

more than 10 years ago


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