Category: Science

Zippers – they are all around us, from clothing to luggage, from boots to gear storage. Yet so many people never really took the time to consider how they worked. But this animated gif does a great job of explaining how a zipper, well, zips. Note the way the raised nub fits into the impression on the other side, creating a pressure fit to hold it together.

 

 

See- it’s simple. Unless, of course, the zipper rips from the material itself. In which case I suggest looking for a sewing GIF for further explanation..

How well do you really know what the Equinox is? Sure, it marks an event that signifies seasons, but does it really mean “Equal”? And if so, what exactly is equal, day and night or something else? Check out the video to learn more.

Astronaut Scott Kelly is back on Earth after spending a whopping 340 days on the International Space Station. The “Year in Space” mission came to a close after a successful landing took place March 2 in Kazakhstan.

After things settle down, Scott Kelly’s physiology will be compared to those of his earthbound identical twin, retired astronaut Mark Kelly. The information yielded could prove to be invaluable on future long-term space missions.

 

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Logarithmic views are a great way to visualize items of large varying quantity, whether it is data collected from a nuclear detector or statistics across a population. But artist Pablo Carlos Budassi has applied it to something much larger – in fact, you could say he applied it to everything.

The artist has created a logarithmic view of the known universe. By pouring over data and pictures from NASA and other sources, Pablo’s work represents the universe with Earth in the center. With each ring outwards the distance greatly increases, until the outer edges cover billions of miles. The end result is a facinating look at the known universe today from our limited perspective. You can find larger images of his work here.