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Can 10ppm of Sulfite & Quat Really Mean Zero?
Is 10ppm Really Zero? Test strips make semi-quantitative (fairly accurate) measurements of pH levels, concentrations of sanitizers such as chlorine & hydrogen peroxide or the [...]
The Human Cost of Amber
Amber's ability to preserve ancient organisms is a boon to scientists. It allows insects trapped in tree sap millions of years ago to be studied [...]
Let’s Break Down the Physics of a Wickedly Curving Baseball
Rhett Allain saw the Tampa Bay Rays’ pitcher, Oliver Drake, make an amazing pitch, and decided to try to code a mathematical model that would [...]
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“New” Big Bang Theory DNA Model
Here’s a 36 base pair version that stands just over 6 feet (nearly 2m) tall and is as accurate as the original of our best in class DNA model. This model also features accurate major & minor grooves in spite of the extra height.