My Experience with RDA, Part 1: Overview

My Experience with Smallpox

Lawson Wilkins and my life: part 1

Preamble Several tributes to Lawson Wilkins have been published. They include, but are not limited to: “To Honor Lawson Wilkins in His 65 Year.” Edwards A. Park and Alfred M. Bongiovanni. The Journal of Pediatrics Vol.57, Number 3. 1957. “Presentation of the John Howland Medal and Award.” Alfred M. Bongiovanni. The Journal of Pediatrics Vol.60, Number 4. 1960. “Acceptance of the Howland Award.”...

Fractal Sequences , Part 1 : Overview

Infinity is where things happen that don't. — S. Knight Ever since Benoit Mandelbrot published his book on fractals [1], we've become accustomed to seeing fantastic and beautiful fractal images such as the ones at the bottom of the pages of this article. A fractal is a mathematical object that exhibits self similarity — it looks the same at any scale. If you zoom in on an image of a fractal, yo...

Part of my liver.

My ex-wife called and asked if I would give her part of my liver. I asked if she could wait until I died. She said that would be too late. I was in good health, and she needed a liver transplant this year. “Please, Frank,” she said, “I’m not asking you to decide right now. Just take the blood test to see if we’re compatible.” “Marie,” I said, “20 years of marriage proved that we are not compati...

Overview Residual stress Part 1 – Measurement techniques

Residual stress is that which remains in a body that is stationary and at equilibrium with its surroundings. It can be very detrimental to the performance of a material or the life of a component. Alternatively, beneficial residual stresses can be introduced deliberately. Residual stresses are more difficult to predict than the in-service stresses on which they superimpose. For this reason, it ...