Your mind is obviously not dirty enough."I did not even think of that one." R5 #1,460
No problem.
Mine is.
Your mind is obviously not dirty enough."I did not even think of that one." R5 #1,460
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It's a convention of society, not irrefutable science."Odd beliefs since a globe is round and spins, so never has a "top".R5 #1,467
Some may think it paradoxical, because gravity is an attraction force."Nor does smoke "always go up".
Heat goes up, but ... R5 #1,467
... but only in a gravitational field. Why?"Heat goes up, but ..." R5 #1,467
It's a convention of society, not irrefutable science.
There are two North poles:
- celestial North, the point on the globe around which the planet rotates
- magnetic North, which meanders over the decades, relative to celestial North
Don't know why it would matter, but there's also a geometric axis perpendicular to the ecliptic. But due to Earth's rotation, that point on Earth scribes a circle, about every day. Is that the Arctic Circle?
The practice of displaying wall maps with South closest the floor helps avoid the complications if the planet applied an every-map-for-himself standard.
Some may think it paradoxical, because gravity is an attraction force.
Magnets can be used to attract, or repel.
Gravity seems to be attraction only.
... but only in a gravitational field. Why?
The density differential.
Among fluids, including liquids, gases, and plasma etc,
when there's a density differential gravity pulls the denser material downward.
Humans just have an odd way of thinking of it. We call it "sunrise". Actually the horizon is moving down.
We say "heat rises", but actually, cold sinks, displacing surrounding fluid, driving the less dense fluid (air for example) up.
Not clear to me what would cause heat to rise outside of a gravitational gradient.
ht tps://citizenvoice.us/threads/topic-drift-overflow.531/page-4R5 #1,469