The secret of life

On February 28, 1953, 67 years ago this week, two scientists made a discovery that would forever change the way people understood the human body. On this day, James Watson and Francis Crick discovered the famous “double helix” structure of DNA.

This ground-breaking discovery proved that DNA could indeed carry complex data. It also allowed people of all ages to understand the human body in new and exciting ways. In announcing their discovery, the scientists exclaimed, “We have discovered the secret of life!”

As scientifically significant as this discovery was, I would propose to you that the secret of life is something else entirely. I suggest that the real secret of life is death. Continue reading “The secret of life”

Tick, tock, tick, tock

For almost twenty-five years a wedding gift has hung in our hallway or living room. That battery powered wooden framed clock has marked the passage of seconds, minutes and hours for decades.

Such clocks are not the only ones. The earth is filled with many different types of clocks, some more accurate than others. Tides regularly wax and wane. Trees experience periods of rapid growth and then dormancy thus producing tree rings.

A new clock has been identified. From our mothers we inherit a slightly imperfect copy of her mitochondrial DNA. Experimentation has identified the rate at which human mitochondrial DNA mutates./1

Continue reading “Tick, tock, tick, tock”