Today in Science Blog Posts
The Science Behind Lie Detector Tests
Polygraph machines accurately monitor cardiovascular, respiratory, and electrodermal activity. But can they really determine whether a subject is being deceptive?
5 Fun Facts to Celebrate Fibonacci Day
Fun fact: The Fibonacci sequence can be found in flowers, pine cones, tree branches, and shells.
Möbius Strips: Where Math Meets Art
The Möbius strip was simultaneously and independently discovered by two German mathematicians in the 1850s. Today, this one-sided object is found in tools, art, nature, and more.
Extracting DNA: From Pumpkins to Mammoths
Here, we go over how to recover DNA from a pumpkin using a simple experiment, as well as how scientists made a recent breakthrough in DNA extraction research.
Happy Birthday, Adhémar Jean Claude Barré de Saint-Venant
The shallow water equations, a derivation of the Navier–Stokes equations, and Saint-Venant’s principle can all be credited to French physicist Adhémar Jean Claude Barré de Saint-Venant.
The History and Science Behind Vinyl Records
As vinyl records explode in popularity, we take a look back at the history of records, as well as the interesting science behind how they are produced — and how they play music.
Happy Birthday, Egon Orowan
Egon Orowan found that the theory of dislocations could be used to explain the plastic deformation of ductile materials. He also studied geological fracture, munitions production, and more.
Happy Birthday, John Sealy Townsend
From fluorescent light bulbs and Geiger counters to plasma televisions and semiconductor manufacturing, Townsend discharge has many important applications. Who discovered this phenomenon?