6 Diseases That Have Shaped Human History

Infectious diseases have had some pretty major impacts on human history… and that’s putting it mildly. Here are 6 diseases that shaped human history. [SciShow] Advertisements

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Scientists Improve Plastic Recycling Enzyme

Scientists investigating bacteria that can eat plastic have accidentally made the relevant enzyme even more effective. It could significantly improve the options for recycling plastic bottles. Such bottles are commonly made of polyethylene terephthalate (PET) in which the bond between molecules is particularly strong. That’s a big benefit when the material is being used and […]

Why Plastics Are Imposible to Biodegrade

The same chemistry that makes plastic tough, light and flexible also makes it nearly impossible to get rid of, because it’s hard to break those resilient chemical bonds. [MinuteEarth]

What Causes Headaches? [Science Video]

In ancient Greece, the best-known remedy for a long-standing headache was to drill a small hole in the skull to drain supposedly infected blood. Fortunately, doctors today don’t resort to power tools to cure headaches, but we still have a lot to learn about this ancient ailment. Dan Kwartler shares what we know (and don’t […]

Did You Know: Milk Is Just Filtered Blood!

Did you know that milk is just filtered blood that female mammals create to provide vital nutrients to their babies? And yes, that even includes cow milk, the one we all buy at the grocery store. The cocktail is composed of water, sugar, fat, and protein, that are extracted from the mom’s blood by her […]

Do You Have a Maximum Heart Rate? [Science Video]

Does your heart rate have an upper limit and could you ever reach it? Find out in this episode of SciShow. [SciShow]

A Tour of the Moon in 4K [Video]

Take a virtual tour of the Moon in all-new 4K resolution, thanks to data provided by NASA’s Lunar Reconnaissance Orbiter spacecraft. As the visualization moves around the near side, far side, north and south poles, we highlight interesting features, sites, and information gathered on the lunar terrain. [NASA Goddard]

Can you solve the prisoner hat riddle?

You and nine other individuals have been captured by super-intelligent alien overlords. The aliens think humans look quite tasty, but their civilization forbids eating highly logical and cooperative beings. Unfortunately, they’re not sure whether you qualify, so they decide to give you all a test. Can you solve this hat riddle? Alex Gendler shows how. […]