By | February 20, 2017

## Surprising Applications of the Magnus Effect

Recently some friends of mine went to the Gordon Dam in Tasmania, which is 126.5 meters (or 415 feet) high. Then they dropped a basketball over the edge. You can see that the basketball gets pushed around of it by the breeze but it lands basically right below where it was dropped. Now watch what happens when they drop another basketball, but this time with a bit of backspin. quot;Wow, where do that goéquot;

quot;That's incrediblequot; quot;This is right, and you threw up * I litterally just dropped that, with a bit of spin like I did have to throw, and it just took of, with no idea of what was gonna do that. And this is where I come in: the basketball was subject to the Magnus effect, which affects all rotating balls or cylinders as they fly to the air. It works like this:

as the basketball picks up speed, air on the front side of the ball is going in the same direction as its spin, and therefore it gets dragged along with the ball and deflected back. Air on the other side, is moving opposite to the ball spin so the flow separates from the ball instead of getting deflected. The net result is the ball pushes air one way, so the air applies an equal force on the ball the other way. And this is known as the Magnus effect,

named after Heinrich Gustav Magnus who described it in 1852. Of course, Isaac Newton beat into it by nearly two hundred years, describing a flight of tennisballs at Cambridge College. But, you know, he's got enough stuff named after him. This effect is very important in sports like tennis, soccer and golf, but could it have nonsports applicationsé Perhaps. This is a sailboat. I know it doesn't look like a sailboat

but those are chimneys. They are spinning cylinders called quot;Flettner rotorsquot;, and they take the place of the sails. They deflect crosswinds, using the Magnus effect to propel the ship forwards. And this is a plane with spinning cylinders instead of wings. Using the Magnus effect, the cylinders actually generate more lift than traditional wings. However they also generate way more drag, making them impractical. This place only flew once, and then it crashed.

But the Magnus effect is making a comeback. Here is an experimental rotor wing aircraft which generates all its lift from spinning cylinders. And this is the EShip 1 which uses four spinning cylinders (that's four Flattner rotors) to increase its efficiency and reduce the amount of diesel it burns. So, in the future, the Magnus effect may help more than just basketballs fly. Now the real reason my friends from quot;How Ridiculousquot; were at the dam was to set the world record for the highest basket ever scored. So go check out the channel and the tutorial,

### Willie CauleyStein Gained 20 Pounds Added Five Inches to His Vertical in 2 Months

What's up guys, for Complex News I'm AlexHudgens. Since suiting up for the Kentucky Wildcatsduring the 2015 NCAA Tourney, Willie CauleyStein has been hardcore improving himself as hepreps for the 2015 NBA Draft. He's put 20 extra pounds onto his 7 foot frame. He'sincreased his vertical by at least 5 inches. And if all of that wasn't enough, he hasa pretty sweet new neck tattoo that pays tribute to a 9year old fan who died after battlingbrain cancer. The Players' Tribune has been tracking CauleyStein'sprogress as he gets ready for the draft in a 3 part tutorial series called Singular Focus,and the tutorials give us a nice glimpse at Willie

turning into even more of a beast. CauleyStein is expected to be one of fourKentucky players selected in the first round, and projected to go somewhere in the 814range as a late lottery pick. It will be interesting to see where Williegoes in the draft and how he performs of course, but I'm also curious to see what else thisdude does. He's been criticized for being unfocusedbecause he's expressed interest in fashion, music, and a bunch of other stuff. But tohim, that just makes him an individual. He told USA Today Sports, â€œI'm not your averageathlete. I'm good at other things. I'm

not just a basketball player. I'm multitalented.I take it to heart when people say I'm not focused or I don't love the game. I lovethe game, but I'm not going to play the game for the rest of my life so you need somethingelse you're good at, another passion. You have to be wellrounded or else you're goingto burn out and you'll lose passion for what you're doing.â€� But when asked during an interview what hewould do with his life if he didn't play basketball, Willie was uncharacteristicallystumpedâ€¦ he told the reporters that it wasn't something he had ever even considered.

The guy is obviously in it to win it. Andhe's getting bigger and better everyday. We'll see what happens in the draft on Thursdaynight.