View Profile: cjl - Cosmoquest Forum

Yesterday, 02:07 AM

cjl replied to a thread Bit rate of human brain in Science and Technology

I don't think so. Digital is sometimes quite clearly better - take VHS vs blu-ray for example. Or CD vs LP (although that may be opening a can of...

27 replies | 331 view(s)

Yesterday, 12:24 AM

cjl replied to a thread Self Balancing motorcycle-car in Science and Technology

It's a bit surprising, and definitely nonintuitive (at least to me), but two counter rotating gyroscopes will indeed completely cancel each other...

145 replies | 1427 view(s)

Yesterday, 12:16 AM

cjl replied to a thread Bit rate of human brain in Science and Technology

And even 24fps is surprisingly inadequate in a lot of situations - movies have motion blur and are careful about how they move the camera, but if you...

27 replies | 331 view(s)

2013-Jun-16, 07:20 PM

grapes replied to a thread Hilbert's Second Problem. in Against the Mainstream

Why wait? :) You and I are on opposite sides of the fence clearly If you think that there is any justification presented for your answer,...

46 replies | 1069 view(s)

2013-Jun-16, 03:42 PM

grapes replied to a thread Hilbert's Second Problem. in Against the Mainstream

I'm a "yes" too. :) However, I am going to add commentary. Clearly, we *can* multiply 1 times 2^3. The equation in the OP has nothing to do...

46 replies | 1069 view(s)

2013-Jun-15, 09:15 PM

grapes replied to a thread Hey Treb, If The Landing Isn't Your Concern... in Off-Topic Babbling

Well, we *should* be able to get some sort of catapult to launch humans straight up. A new twist on the sport of base-jumping, as Don says. Since...

17 replies | 230 view(s)

2013-Jun-15, 08:11 PM

grapes replied to a thread Odd, I've Seen This In Youngsters... in Off-Topic Babbling

Well, it's not like you have no reason for COPD, but when's the last time you were evaluated? Make the appointment. And hurry back.

4 replies | 137 view(s)

2013-Jun-15, 12:30 PM

grapes replied to a thread Really trivial stuff that amuses you... in Off-Topic Babbling

That instantly struck me as the perfect green license plate: ABVVACWM Ab or vacwm, naturally.

1753 replies | 58344 view(s)

2013-Jun-14, 12:10 PM

grapes replied to a thread Force of charge in Space/Astronomy Questions and Answers

To be fair, I looked at all the possibilities, and that's the one that fit. The *other* issues associated with maintaining that amount of charge...

14 replies | 230 view(s)

2013-Jun-14, 10:25 AM

grapes replied to a thread Force of charge in Space/Astronomy Questions and Answers

More or less. I just used the setup in the OP. Of course, the mg of electrons would be the wider-ranging of the two since their mass is so much...

14 replies | 230 view(s)

2013-Jun-13, 08:38 PM

cjl replied to a thread Bit rate of human brain in Science and Technology

You need a lot more than 1 kB/s for an audibly perfect sound stream though. To fully encompass human hearing, effectively CD quality would be...

27 replies | 331 view(s)

2013-Jun-13, 01:14 PM

grapes replied to a thread Fiction in Forum Introductions and Feedback

That's just the stuff they don't want to keep! Kidding...kidding... Why wouldnt scientists like science fiction. Same reason romantics like...

11 replies | 261 view(s)

2013-Jun-13, 12:58 PM

grapes replied to a thread Top-heavy Royal Princess? in Off-Topic Babbling

Do we have a good picture of the keel? I also have to say that the pic in the OP is foreshortened and flattened a lot--check out the photo of the...

48 replies | 848 view(s)

2013-Jun-13, 11:45 AM

grapes replied to a thread Force of charge in Space/Astronomy Questions and Answers

Equivalent to what? Do you mean the sun's gravitational force on the 1836.5 mg of protons at 93 million miles? Or on the mg of electrons at the...

14 replies | 230 view(s)

2013-Jun-13, 12:12 AM

cjl replied to a thread Self Balancing motorcycle-car in Science and Technology

The overall cross section may slightly increase, but it would be more than offset by the dramatic reduction in drag coefficient. The bigger reason...

145 replies | 1427 view(s)

2013-Jun-12, 10:58 PM

cjl replied to a thread Self Balancing motorcycle-car in Science and Technology

I suspect that is largely due to aerodynamics. As it turns out, a person with no shroud is not all that aerodynamic, and as a result, a sleek,...

145 replies | 1427 view(s)

2013-Jun-12, 10:55 PM

cjl replied to a thread Self Balancing motorcycle-car in Science and Technology

That doesn't look like it has very low rolling resistance tires, and the aerodynamics are abysmal (which will be true of anything without an...

145 replies | 1427 view(s)

2013-Jun-12, 04:55 PM

cjl replied to a thread Imagine Computer-driven Vehicles in Science and Technology

Not that I know of. I won't completely discount the possibility, since I can't claim that I am familiar with every possibly ABS failure mode, but...

506 replies | 17930 view(s)

2013-Jun-12, 04:26 PM

cjl replied to a thread Self Balancing motorcycle-car in Science and Technology

You keep saying that power to weight ratio is the reason that motorcycles are better than cars in terms of fuel economy, and it simply isn't true. A...

145 replies | 1427 view(s)

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