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In April 2017 I published a post titled “Why is there so much talk about epigenetics?”. I think I did a pretty decent job explaining what epigenetics is, and why it is such a critically important part of biology. The gist is, that the regulated output of our genomic information depends on epigenetics. This is achieved by specific chemical groups and protein along the chromosomes that control their expression into the proteins and other products needed for the life of a particular cell.… Read the rest “Why there is so much talk about epigenetics”

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Baseball is the subject of many artistic creations and scientific studies. Movies such as “Field of Dreams”, “Bull Durham”, and “Moneyball” depict baseball embedded in the larger American culture. Books such as the elegant “Game Time: A Baseball Companion”, by Roger Angell, are a literary pleasure even for someone only peripherally familiar with the game. And baseball has also engendered a broad culture of analysis through applied physics. The pitch is an object of particular fascination for the physics-inclined baseball fan.Read the rest “fastball: movement and speed”