Recent content by BasketDaN

[edit by Ivan] ...erroneously supposing that science supercedes reason. Indeed it is the other way around; the scientific method, though wonderful, is only one expression of valid reason. Just because the scientific method cannot explain something does not mean that reason also cannot. Your...

Thank you very much! Good thing I didn't waste more time looking around for rod wipers. O-rings are pretty easy to find; will they be fine for under 1,000 psi?

I'm looking for a 1/8" diameter rod wiper, or anything else that could be reliably used to allow a 1/8" diameter steel rod to slide very slowly past it while maintaining cold oil (at about 0 celsius) on one side at several hundred psi, and standard pressure air on the other side. Anybody...

Thank you for the website! I can't believe I haven't seen that before. I have tried the method you suggest, but it didn't work since I couldn't find wide enough pipe at Home Depot. McMaster Carr does have acceptable pipe sizes though.

I have a very odd need for an experiment I'm doing. I require a container of at least 32 fluid ounce volume that is very rigid and strong; it needs to be able to resist preferably at least 100psi internal pressure (water will be inside) without deforming. The opening needs to be at least 2" in...

Haha, creepy indeed. But re-reading that link I posted, I don't even thinK THAT contains the data I need! I mis-read... the data that has is 1 minute average wind speeds, not instantaneous wind speeds FOR 1 minute. Ugh.

I've been searching the internet far and wide but cannot seem to the wind speed information I want. I need a graph or table of wind speed vs. time, where the time scale is very small, on the order of seconds. I did find one graph here...

This actually doesn't need to last long, just a day or two so I can use this once. High performance also isn't particularly important, just that nothing leaks out the seal. I guess I am wondering what the highest viscosity fluid would be that wouldn't freeze in a freezer. (Is it viscosity that...

I am building a prototype, and I was just wondering what fluid I should use that is the least likely to seap through the interface of a steel rod and a small O-Ring, as the steel rod moves forward through the O-Ring. This fluid should not freeze at 25 degrees fahrenheit, and should be...

The difference only exists because composite flywheels are able to withstand far greater rotational velocities than are steel flywheel.s Yeah, I found that site too,, do you think the specific strength is directly proportional to the maximum speed it can withstand?

Anybody? ..

Spinning at their respective maximum velocities, approximately how much more energy will an ideal composite flywheel (magnetically levitated in a vaccum) be able to store than an ideal ball bearing steel alloy flywheel of the same size and shape? Thanks.

I mean 9.8 m/ss accel

I don't think a human could ever withstand the acceleration/deceleration that would be involved with traveling light speed. One g certainly is bareable... but constantly for months? I don't know a huge amount of biology, but I'm guessing that you'd die under even that force after only a few...

Well,, decelerating from light speed could be as simple as using current rocket propulsion, right? It would just take quite a while,, and you probably wouldn't want to do that with a manned ship b/c you'd have quite a harsh deceleration for days.