• February 4, 2021

    Science of the Heart and Stars

    In honor of Black History Month, I very much wanted to profile two wonderful Black American scientists who have greatly contributed to the advancement of humanity’s health and well-being and to our understanding of the universe! I’m speaking of none other than Progressive Pioneers Doctors Marie M. Daly and Neil deGrasse Tyson. Let’s take a look into the lives of these great Americans who make us all proud—for we are all one color: beautiful. Dr. Marie Daly STEM Revolution of Equal Opportunity When the 45th president signed into law the Hidden Figures Act honoring the four African‐American women who were instrumental in the success of NASA’s space race to the moon, we should not forget other accomplished women who have also contributed our nation’s scientific knowledge. One such venerated pioneer is Dr. Marie Maynard Daly. Dr. Daly was born in Queens, NY on April 16, 1921. She was the daughter of Ivan Daly (an immigrant from the British West Indies) and Helen Page of Washington DC. Her parents settled in the New York City area where Mr. Daly attended Cornell University in pursuit of a chemistry degree. Like her father, Dr. Marie Daly also chose to pursue a career in chemistry. She was spurred on by her grandfather’s extensive library of books about scientists and their scientific achievements. Dr. Daly graduated from Queens College magna cum laude with a BA in Chemistry. Due to labor shortages and the need for scientists during World War II, she was able to garner fellowships to study at both New York and Columbia Universities earning her a master’s and a Ph.D. (respectively). Daly’s first major publication was her thesis on the formation of pancreatic amylase on corn starch. From there, her scientific career soared. She was awarded a grant from the American Cancer Society...
  • February 17, 2020

    The “Holey” Sphere

    [From the website of Dr. Donald Simanek—see further down.] Browsing Martin Gardner’s books I stumbled on this diabolical puzzle. Gardner calls it “an incredible problem”. He traces it back too Samuel I. Jones’ Mathematical Nuts, 1932, p. 86. It is seen on the web in various forms, often ambiguous in wording, along with endless discussions often leading nowhere. I have tried to restate it to remove ambiguity (which isn’t easy). A hole is drilled completely through a sphere, directly through, and centered on, the sphere’s center. The hole in the sphere is a cylinder of length 6 inches. What is the volume of the remainder of the sphere (not including the material drilled out). You’d think there’s not enough information given. But there is. The solution does not require calculus. Gardner gives an insightful solution that requires only two sentences, including just one equation. Visit From for more info. The answer is provided by Doctor Donald Simanek, Professor of Physics Emeritus at Lockhaven University. Visit Donald Simanek’s page at for more brain-bending physics puzzles! Now that’s an interesting answer! Keep scrolling down… Wanna see a video answer to the brainteaser? This video was created by Tom McNaney Jr., Generalist Applications Engineer, Fellow at PTC (the company that I currently work for). Here is his detailed approach to the brainteaser using PTC’s flagship CAD program Creo Parametric! For the Holey Sphere challenge, Creo Parametric says the volume is 113.097 in^3. Interestingly, the volume remains constant regardless of the sphere Radius. Cool. I have no idea what the mathematical formula is, but probably 4/3*Pi*(something)^3. Who needs advanced math when they have Creo or Mathcad?