Tag: biology

We are stardust…literally

We are stardust…literally

Some think the seeds of life came from the Big Bang, but that misses a critical part of how the elements of life came to be. All the elements we have discovered and mapped on the periodic table contain a certain number of protons. For example, iron possesses 26 protons, and gold (Au), a much heavier element, contains 79.

The Big Bang produced ONLY elements with one and two protons, hydrogen and helium, along with trace amounts of three and four proton elements (you can look those up on the periodic table). However, life on earth requires carbon, which has six protons, as well as a bunch of other elements. Where did those heavier, more proton-dense elements come from if not from the Big Bang?  

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Introduction to cells ~ Great 3-D animation

Introduction to cells ~ Great 3-D animation

I studied biology in college and these animations that model cellular and molecular activity have done more to help me appreciate and understand (as best we can) what is going on in cells than any still images or text. This should be the future of learning biology, chemistry, physics. A picture is great, but moving images can convey so much more.

More excellent visualizations can be found on sfgregs’ YouTube channel.