The income gap meets the longevity gap.
Read more. [Image: Reuters]
… Y’see, now, y’see, I’m looking at this, thinking, squares fit together better than circles, so, say, if you wanted a box of donuts, a full box, you could probably fit more square donuts in than circle donuts if the circumference of the circle touched the each of the corners of the square donut.
So you might end up with more donuts.
But then I also think… Does the square or round donut have a greater donut volume? Is the number of donuts better than the entire donut mass as a whole?
A round donut with radius R1 occupies the same space as a square donut with side 2R1. If the center circle of a round donut has a radius R2 and the hole of a square donut has a side 2R2, then the area of a round donut is πR12 - πr22. The area of a square donut would be then 4R12 - 4R22. This doesn’t say much, but in general and throwing numbers, a full box of square donuts has more donut per donut than a full box of round donuts.
The interesting thing is knowing exactly how much more donut per donut we have. Assuming first a small center hole (R2 = R1/4) and replacing in the proper expressions, we have a 27,6% more donut in the square one (Round: 15πR12/16 ≃ 2,94R12, square: 15R12/4 = 3,75R12). Now, assuming a large center hole (R2 = 3R1/4) we have a 27,7% more donut in the square one (Round: 7πR12/16 ≃ 1,37R12, square: 7R12/4 = 1,75R12). This tells us that, approximately, we’ll have a 27% bigger donut if it’s square than if it’s round.
tl;dr: Square donuts have a 27% more donut per donut in the same space as a round one.
Thank you donut side of Tumblr.
RIO DE JANEIRO – Tall and tan and young and lovely, the girl from Ipanema goes … “Ew, what’s that smell?”
At Ipanema beach in January, the organization Meu Rio staged a protest in an attempt to make it known that thousands of gallons of raw sewage are dumped into the ocean off Rio’s coast each day.
“For three months we held protests every weekend to turn an invisible problem into a visible one,” Leona Deckelbaum, the campaign coordinator with Meu Rio, said in a recent interview. Only about 34 percent of Rio’s sewage is treated, and the rest simply washes into the azure waters, giving new meaning to the nautical term poop deck.
Guanabara Bay, the site of several 2016 Olympic sailing events, has 78 times Brazil’s legally allowed limit of fecal pollution, and 195 times the U.S. limit. In addition to human waste, the bay is also a receptacle for trash from ships and the bay’s 15 adjacent communities, as well as toxic runoff from a former landfill. And its not just Guanabara–the ritzy Leblon and Ipanema beach areas are plagued with similar pollution problems. The state environmental agency, INEA, found that Leblon and Ipanema were unfit for swimming for 40 percent of 2011. Botafogo Beach had so much fecal pollution that it did not pass a single INEA test in 2013, according to the BBC.
"In the waters just off Copacabana beach, the measurement of fecal coliform bacteria spiked to 16 times the Brazilian government’s satisfactory level as recently as three weeks ago, bad news for the marathon swimmers and triathletes set to compete there," the AP noted in November.
Olympic teams are getting grossed out and nervous.
Read more. [Image: Felipe Dana/AP]