DaveC426913's latest activity
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DaveC426913 posted the thread High School Why would sailboat racers prefer a full keel over a fin keel? in Classical Physics.I keep going back and forth on this. Apparently, fin keels are better (and preferred) than full keels for racing because they 1] are... -
DaveC426913 replied to the thread Undergrad What is matter?.I think we've explored this before in another thread. I offered the rough-n-ready description that - with a few notable exceptions* -... -
DaveC426913 replied to the thread Today I Learned.TIL that bringing your boat to your mechanic is like going to your doctor. You take off all your clothes in front of a stranger and they... -
DaveC426913 replied to the thread Today I Learned.Wait'll he hears about baby oil... -
DaveC426913 replied to the thread High School What fun could you have with a fountain design in artificial gravity?."The effect is not unlike the acceleration due to real gravity." OK, it's not a 100% match. The water is emitted in at 55 degrees from... -
DaveC426913 replied to the thread High School What fun could you have with a fountain design in artificial gravity?.Gravity due to mass is zero. Artificial gravity due to rotation is 0.5g. (see specs, top-left in diagram) It's a rigid tower, 110m... -
DaveC426913 replied to the thread Anyone like “2001: A Space Odyssey?”.Not a lot of people know this but a lot of these scenes were filmed on Earth to save production costs. -
DaveC426913 replied to the thread High School Why does this not produce water pressure?.Now don't give up too quick... Are there many overpasses between your home and your fave campgrounds? Have you measured them? :oldbiggrin: -
DaveC426913 replied to the thread Anyone like “2001: A Space Odyssey?”.2001 is a classic, without a doubt. -
DaveC426913 replied to the thread Art Rate my photos on a scale of 1-5 please?.That is unfortunate. Have you heard the expression "You can't think outside the box if you don't know what's in the box?" School... -
DaveC426913 replied to the thread Art Rate my photos on a scale of 1-5 please?.And there's nothing wrong with that. It's not a shortcoming of the observer, nor is it a "problem". Art is a communication between...

