How Tattooing Really Works and What Makes Tattoos Permanent [Science Video]

The earliest recorded tattoo was found on a Peruvian mummy in 6,000 BC. That’s some old ink! And considering humans lose roughly 40,000 skin cells per hour, how do these markings last? Claudia Aguirre details the different methods, machines and macrophages (you’ll see) that go into making tattoos stand the test of time. Related Posts: […]

Fascinating: How Liquid Nitrogen Reacts When Under Vacuum [Video]

At standard sea level pressure, liquid nitrogen has a boiling point of -321 °F / -196 °C. That’s just 77 °C above absolute zero. It’s very cold stuff! Solid nitrogen is something few people have ever seen. In this lecture, ChefSteps explains why liquid nitrogen goes solid under an extreme vacuum. [ChefSteps | Via UD]

ZZZZY THE DYING BEE: A Sad Animated Look At Honeybees’ Colony Collapse Disorder (CCD) [Video]

While no laughing matter, this sad look at Honeybees’ Colony Collapse Disorder (CCD) shines the light at a very real problem that could affect us more that we might like in the near future. A new animation by our friends over at ADHD. The mechanisms of CCD and the reasons for its increasing prevalence remain […]

The Fascinating Stories of How The Elements Got Their Names [Science Video]

Ever wonder what all those names on the periodic table actually mean? There’s a whole lot of fascinating history on Mendeleev’s table. Some carry names from antiquity, some are named for people, some are named for places, and some are named for mythical beings. Discover the etymology of the elements! [It’s OK To Be Smart]