Fast Facts

Can you guess what this is?
A fossilized horse or camel tooth. It is probably between 6 and 30 million years old.

This is looking down upon the cusps of the tooth. From
this view, it looks more molar-like.

I was blessed to find this tooth last year when we went on vacation in North Carolina. One of my professors from college identified it for me once we came home. What a blessing!

Fast Facts

Introducing a new series of posts! Once a week I'll be posting a random fact, which will (hopefully) be fast, fun and fascinating.

Here's one that I find mind boggling.
This a red blood cell (also known as an erythrocyte):

Yes, it's an actual photograph.

Oxygen Molecule 

There are 4 to 5 million of these in one microliter of blood. (For visualization, there are about 50 microliters in a drop of water).

Red blood cells are really important because they carry oxygen throughout the body. About 1 billion molecules of oxygen bind to one red blood cell.

This means that there are ~ 4.5*10^15 or 4,500,000,000,000,000 oxygen molecules per microliter of blood.  Unbelievable, right?

God is amazing!