that scale length

Despite the circumstances, Felix was fairly good at adjusting to new situations – especially ones that related to school. He was a ‘jock’ type, after all. If he just stopped having panic attacks over every loud noise and jumping when people came towards him too fast, he’d be at the top of the food chain quick as a wink. As it was, he just spent his time exercising to try to get his mind off of things. At the moment, he was headed back to his dorm after going for a swim, only hesitating when it came to the door and saw the snow storm blowing outside. Thinking better of going out in it, he made his way back to the gym, giving a smile to the person he saw there. “It’s a real white out blizzard out there. Mind if I keep you company?”

This scale that compares the length of different electromagnetic radiation waves to marine creatures and objects might be helpful to people studying or teaching basic physics. 

A high-energy gamma ray’s wavelength is shorter than an atom’s width. A high-frequency, lower energy radio wavelength, meanwhile, can fit three blue whales lined up from snout to fluke. At the longest end of the spectrum sit extremely low frequency radio waves, which can have a wavelength more than 6,000 miles long and are naturally produced by lightning and stars. These can penetrate ocean water and have been used to communicate with submarines.

See a larger version of this graphic here. Courtesy of brookhavenlab, which uses high-energy X-rays to explore materials at the nanoscale.

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Turbulence is found throughout our lives, but rarely is it as startlingly beautiful as in this Slow Mo Guys video. Here they show high-speed videos of ink being injected into water. The resulting plumes are turbulent from the very start, with innumerable folds and eddies billowing outward as the plume expands. The large difference in length scales–from the millimeter-sized curls to the meter-sized length of the plume–is one of the classic characteristics of turbulence and part of what makes turbulent flows so difficult to model computationally. Energy in these flows is generated at the large scales, but it’s dissipated at the very smallest scales through viscosity. This means that to properly model a turbulent flow, you have to capture the largest scales, the smallest scales, and everything in between in order to represent this energy cascade from large to small. It’s a problem that engineers, mathematicians, meteorologists, and physicists have struggled with for more than a century. But, here, at least, we can all just sit back and enjoy the beauty. (Video credit: The Slow Mo Guys)

The Rooster Teeth community is a powerhouse beyond comparison

When Burnie and Matt came to us with a dream for a full-scale, professional, feature-length movie, we raised over a million dollars for them and obliterated their original campaign goal in less than half a day

When Jack organised two campaigns to fundraise for children, we mustered together hundreds of thousands of dollars, most of which was solely donated and the rest of which was to purchase a poster, the returns for which would be entirely charitable, within the span of 24 hours

And now, when one of the people held in such high regard, not only by us in the community, but by his co-workers and friends, is in critical care in a hospital, we manage to raise over twice the expected cost of his hospital fees, having achieved the goal of $50,000 within the span of just a few hours

I’ll never doubt this community’s ability to prove how incredible it is but I’ll always be amazed, every time, by the extent of its generosity. I’m proud to be a member of the Rooster Teeth community and today’s yet another day that proves just why that is