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Is this how a "Great Red Spot" could start?
On Jun 23, 2:40*pm, Alan LeHun wrote:
In article 6193e963-0e32-401c-80a8- , says... It is assumed the gasses methane and similar make up the atmosphere if I remember correctly but water is a lot lighter than methane is it not? Water H20 2+16=18 Methane CH4 12+4=16 Methane is a little lighter than water. What counts more than atomic weights is, as with solar systems, the spaces in between. The vast majority of the atmosphere is, apparently, hydrogen and helium. I rather think that much of our understanding about the top layers of all the gas planets is based on supposition built out over hypotheses. My chemistry teacher in the good old daze told me that water is lighter than air. It's about all I remember from the bad old good olds. I wonder what he said about methane. Too late to go and ask him now. Too late to go and ask him. Am I right in thinking that Jupiter is the only planet that emits more heat than it accepts? In which case the physics of heat leaves a lot to be desired; especially in the time frames usurped by monkeys. Not that creationists can give a time frame for the life of Jupiter nor its heat history, anything past human history. And it still couldn't chill out like that. |
#12
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Is this how a "Great Red Spot" could start?
On Jun 23, 2:40*pm, Alan LeHun wrote:
In article 6193e963-0e32-401c-80a8- , says... It is assumed the gasses methane and similar make up the atmosphere if I remember correctly but water is a lot lighter than methane is it not? Water H20 2+16=18 Methane CH4 12+4=16 Methane is a little lighter than water. The vast majority of the atmosphere is, apparently, hydrogen and helium. When in doubt ask about From the Wikipedia: Hot Air is frequently used in recreational ballooning. Hot air is lighter than air at ambient temperature. Neon is lighter than air and will lift a balloon. However, it is relatively rare on the Earth, expensive, and is among the heavier of the lifting gases. The gaseous state of water is lighter than air, and has successfully been used as a lifting gas. It is generally impractical due to high boiling point and condensation. Ammonia has sometimes been used to fill weather balloons. Due to its relatively high boiling point (compared to helium and hydrogen), ammonia could potentially be refrigerated and liquified aboard an airship to reduce lift and add ballast (and returned to a gas to add lift and reduce ballast). Methane is sometimes used as a lift gas when hydrogen and helium are not available. It has the advantage of not leaking through balloon walls as rapidly as the small-moleculed hydrogen and helium. (Many lighter-than-air balloons are made of aluminized plastic that limits such leakage; hydrogen and helium leak rapidly through latex balloons.) Hydrogen and helium are the most commonly used lift gases. Although helium is twice as heavy as (diatomic) hydrogen, they are both so much lighter than air that this difference is inconsequential. Hydrogen has about 8% more buoyancy than helium. In a practical dirigible design the difference is significant making a 50% difference in the fuel carrying capacity of the dirigible and hence increasing its range significantly. |
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#14
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Is this how a "Great Red Spot" could start?
Except for a couple of days this jetstream loop has been/ will be present
for about 3 weeks. http://virga.sfsu.edu/gif/jetstream_atl_h120_00.gif Just oscillating back and forth over a small section of the N Atlantic |
#15
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Is this how a "Great Red Spot" could start?
So its only me intrigued as to why/how the jetstream has taken up this
apparently stable loop form for getting on for a month, now out to 07 July http://virga.sfsu.edu/gif/jetstream_atl_h120_00.gif |
#16
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Is this how a "Great Red Spot" could start?
"N_Cook" wrote:
So its only me intrigued as to why/how the jetstream has taken up this apparently stable loop form for getting on for a month, now out to 07 July http://virga.sfsu.edu/gif/jetstream_atl_h120_00.gif I'm not very good at interpreting that graph. Is the loop centred just slightly to the west of Ireland? What are the irregular shapes marked out with dotted lines? Cheers, John. |
#17
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Is this how a "Great Red Spot" could start?
Togless wrote in message
... "N_Cook" wrote: So its only me intrigued as to why/how the jetstream has taken up this apparently stable loop form for getting on for a month, now out to 07 July http://virga.sfsu.edu/gif/jetstream_atl_h120_00.gif I'm not very good at interpreting that graph. Is the loop centred just slightly to the west of Ireland? yes What are the irregular shapes marked out with dotted lines? They are isotachs differentiating 50/70/90.... knot winds If you use free Irfanview and load the numbers at the end of this post as a ..pal file then import in View option , it will colour up the bands. Unfortunately I only created it for stronger jet speeds instead of grey scale Cheers, John. JASC-PAL 0100 256 255 255 255 0 0 0 76 76 76 0 0 179 158 158 158 163 163 163 174 174 174 179 179 179 184 184 184 255 76 76 255 255 0 128 255 0 0 255 255 0 128 192 128 0 255 255 128 0 215 215 215 255 76 76 255 255 0 128 255 0 0 255 255 0 128 192 128 0 255 255 128 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 |
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