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originally posted by: Bilk22
a reply to: UnderKingsPeak
Not disputing or trying to derail your thread. I find it interesting and more believable that the other version of climate change. However can you or someone else explain to me how we know how many spots the sun produced in 1600 what ever? Or anytime prior to actually having the ability to view the sun 24/7 with computerized equipment. Who saw sun spots before there was optics to view them and protect vision from damage? How was this information obtained and quantified?
originally posted by: jude11
a reply to: UnderKingsPeak
"You old hats have no idea how intimidating it is "
Who you calling Old?
lol
Ok so I am.
Nice thread tho...even for us old fogies. But remember one thing...us oldies have more of an open mind because we've seen more.
Peace
That didn't really answer my question. Who was counting sun spots centuries ago? How did they know of sun spots and how did they view them and count them? What technology was used?
originally posted by: UnderKingsPeak
originally posted by: Bilk22
a reply to: UnderKingsPeak
Not disputing or trying to derail your thread. I find it interesting and more believable that the other version of climate change. However can you or someone else explain to me how we know how many spots the sun produced in 1600 what ever? Or anytime prior to actually having the ability to view the sun 24/7 with computerized equipment. Who saw sun spots before there was optics to view them and protect vision from damage? How was this information obtained and quantified?
No problem at all!
Good question apparently just a few years before the sunspot number began to drop
the first daily sunspot numbers were being recorded for the first time.
Lucky break.
originally posted by: Bilk22
a reply to: UnderKingsPeak
Not disputing or trying to derail your thread. I find it interesting and more believable that the other version of climate change. However can you or someone else explain to me how we know how many spots the sun produced in 1600 what ever? Or anytime prior to actually having the ability to view the sun 24/7 with computerized equipment. Who saw sun spots before there was optics to view them and protect vision from damage? How was this information obtained and quantified?
Yeah I saw that before. So 8000 years ago you could see sun spots with the naked eye and actually keep count? Same goes for the period of the invention of the telescope? Someone kept count of them daily, weekly, annually? I don't see it.
originally posted by: UnderKingsPeak
a reply to: Bilk22
How about a history of Sunspot number counts?
www.windows2universe.org...
I believed they used a pinhole that project the sun on a piece of light parchment.
The pinhole showed the sun with its spots.
Studies of stratigraphic data have suggested that the solar cycles have been active for hundreds of millions of years, if not longer; measuring varves in precambrian sedimentary rock has revealed repeating peaks in layer thickness, with a pattern repeating approximately every eleven years. It is possible that the early atmosphere on Earth was more sensitive to changes in solar radiation than today, so that greater glacial melting (and thicker sediment deposits) could have occurred during years with greater sunspot activity.[7][8] This would presume annual layering; however, alternate explanations (diurnal) have also been proposed.[9]
Analysis of tree rings has revealed a detailed picture of past solar cycles: Dendrochronologically dated radiocarbon concentrations have allowed for a reconstruction of sunspot activity dating back 11,400 years, far beyond the four centuries of available, reliable records from direct solar observation
What caused the ice ages? There have been many explanations proposed, none of which appears to be solely adequate. These include:
1.Variations in the earth's orbital characteristics (angle of the ecliptic, eccentricity of the orbit, precession of the equinoxes). While this is sometimes touted as being "the" explanation of the ice ages, it cannot be the sole explanation since there have been long periods without glaciation during which Earth's orbital elements matched those of recent glacial periods. The patterns of ice advance and retreat DURING an ice age do seem to track the variations in orbital characteristics.
2.Excessive volcanic activity -- perhaps resulting from impacts of meteors, asteroids, or comets; or perhaps associated with the collision of detached land masses with continents proper (e.g., India with the rest of Asia).
3.Meteoritic and/or cometary impacts resulting in a kind of "nuclear winter." This includes the possibility of regular comet showers caused by a distant unseen solar companion (often called "Nemesis") deflecting outlying cometary bodies into the inner solar system.
4.Passage of the solar system through interstellar dust clouds as the solar system moves up and down through the plane of the galaxy.
5."Fast" slippage of the earth's crustal plates on the underlying magma, perhaps caused by imbalances in the distribution of ice on continental surfaces. (This no longer appears to be a viable theory.)
6.Variations in solar output. Perhaps the sun is a long-period irregular variable star.
7.Changes in ocean currents and temperatures caused by shifting continental configurations.
I'm sure there are other explanations I can't bring to mind right now.
www.talkorigins.org...