It looks like you're using an Ad Blocker.
Please white-list or disable AboveTopSecret.com in your ad-blocking tool.
Some features of ATS will be disabled while you continue to use an ad-blocker.
In the absence of outside influences, very stable. But if anything approaching what he described (Venus zooming around the Solar System) had occurred when he said it did, the planets would not have the nice orbits which they do and we would probably not be here at all.
How is sacrosanct is orbital stability?
He was right in many things
As a rough guess, on the order of millions of years. This is of course, disregarding the fact that Venus could not have done that in the first place.
How long would it take if this type of event happened, for the planets to regain a stable orbit?.
Oh yes, he realized it. That's why he published a story, not a science paper. Had he tried to publish it as a paper it would have gone where it belonged, the trash.
He must have realised your comment would be a major objection to his theory, long before he published..
Not really. Most obviously, chondrites show no indication of differentiation.
Earths composition is exactly like a chondrite meteor,
originally posted by: anonentity
a reply to: Phage
How long would it take if this type of event happened, for the planets to regain a stable orbit?. He must have realised your comment would be a major objection to his theory, long before he published..
Earths composition is exactly like a chondrite meteor, so probably is Venus. Its just a matter of scale.
You seem to be confusing axial tilt with a Solar orbit. On the other hand, because Mars lacks a large Moon, it's axial tilt varies substantially over time.
That's a bit cruel when even Einstein agrees that the Earth could have changed its axis at one time, disregarding Earth and Mars, not only share almost the same almost, 24 hour rotation, and almost the same axial tilt, Mars 25 degrees to Earths 23.5.
Odds don't really mean much when things are as they are. But understanding that Mars' tilt varies quite largely, quite good.
What are the odds?
One could as well ask, why does the Earth's magnetic field reverse itself on occassion. It's an intriguing question. Or does Jupiter just keep spitting out comets that turn into planets?
Then why isn't the Earths magnetic pole, the same as the Geographic one, 11 degrees difference unless something caused the outer skin to shift on the fluid mantel.
Oh dear. No. It is the tilt of Earth's axis which causes seasons, not its orbit. But its wobble is something else entirely and doesn't really affect the seasons.
No the orbital wobble that causes seasons on Earth.
Yes. And, as I said. The obliquity (tilt) of Mars' axis changes a great deal, where that of Earth does not.
Is 23.5 degrees on Earth and 25 degrees on mars. They seem a bit similar due to chance?
originally posted by: Astyanax
a reply to: anonentity
He was right in many things
Could you mention one or two of them here, please?
The hotness of Venus and the radio output of Jupiter don’t count, because his reasoning to those conclusions was utterly wrong. As Phage says, Venus is not a comet.
Anything else he got right?
Velikovsky expected other discoveries through space exploration. He claimed that the planet Venus would be found to be extremely hot, since in his reconstruction, the planet was "candescent" in historical times. His thesis also implied the likelihood of a massive Venusian atmosphere, residue of its former "cometary" tail. And he claimed that the Earth would be found to have a magnetosphere reaching at least to the moon, because he was convinced that in historical times the Earth exchanged electrical charge with other planetary bodies.
Arrival of the space age was a critical juncture for Velikovsky, as data returned from the Moon, from Mars, and from Venus begin to recast our views of these celestial bodies. In 1959, Dr. Van Allen discovered that the Earth has a magnetosphere. In the early sixties, scientists realized, much to their surprise, that the planet Venus has a surface temperature as high as 900 degrees Fahrenheit, hot enough to melt lead. "The temperature is much higher than anyone would have predicted," wrote Cornell Mayer.