I have been eager to write an article on mutations for several months! According to the theory of evolution, supposedly creatures “evolve” by a process called “natural selection.” But what is being selected? According to the theory, creatures that undergo healthy mutations survive and creatures that experience unhealthy mutations may die. So far so good. But let’s examine this process a little closer to see if creatures can actually “evolve” via this process. Let’s have a little fun at it. Get out a deck of cards and we can see how this process works. Continue reading Mutations
Have you ever seen the orange and yellow contraptions that lift workers up into the air? You will see them on construction sites, shopping malls, airports, etc. As an engineer, my job is to assist in the design of the hydraulic systems that make these machines work. The hydraulic systems include the pumps and motors that make the machine self propel, the valves to give the wheels a “limited slip” action for better traction, the valves to lift the people up into the air and position them in the right location to do their intended work, and, perhaps most importantly, the valves that make sure they stay in that position and don’t drop someone 150′ to the ground! The designs are extremely detailed, as you can imagine, and include the many other parts like hoses, fitting sizes, electrical wiring, etc. By any definition of the process, the design is “complete.” Or is it??? Continue reading DNA in the News!
“A scientist at New York’s Rockefeller University won the Nobel Prize in medicine for discovering how proteins find their rightful places in cells — a process that goes awry in diseases like cystic fibrosis and plays a key role in the manufacture of some medicines” This was the context of many news headlines a few years ago. Continue reading The Nobel Prize for Medicine