Offset Dust
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Offset Dust
Amaryllis offset bulbs?
At what age do they flower? when should you detach them from the mother bulb? do they need a dormant period? is it safe to use the product Dust a Bulb?
they flower at 3 years old, dust a bulb is great, you should detach it from the mother bulb when it reaches 1 year.
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diesel and dust - suits make better liars
Need Calculations Billion Cubic Miles Ice Entering Earth Atmosphere?
I saw this article "Did stardust trigger snowball Earth?" originally from NATURE:
http://www.bioedonline.org/news/news.cfm?art=1559
"Our planet may have frozen over in the past as it drifted though giant dust clouds in space. The result of the dust-bath would have been an almost complete overcoat of ice for the world, according to a new theory." I thought that ice would burn up on atmosphere entry and burn up the planet, but someone said the massive ice was a "heat sink". Is there any way to calculate if say, it was a billion cubic miles of ice caving in on earth's atmosphere, if that would be enough of a "heat sink" to offset the friction of entry?
You're misinterpreting the article. Nothing of consequence entered the atmosphere. The theory is that the dust cloud in space simply blocked a significant portion of sunlight from reaching earth, resulting in the earth becoming cold. Earth's surface then froze solid due to snow, glaciers, and sea ice originating from its own supply of water in the usual manner.
The eventual thawing of "snow ball earth" due to the build up of CO2 of volcanic origin is thought to have triggered the explosive evolution of animal life in the Cambrian that resulted in all modern phyla of animals (plus several now extinct phyla) evolving. It's refered to as "The Cambrian Explosion".
