A Brief History of Screw-propelled Vehicles

#History

Sat, Mar 26th, 2011 11:00 by capnasty NEWS

M. Christian and Avi Abrams of Dark Roasted Blend give us a lesson on screw-propelled vehicles:

The basic idea of a screw-propelled vehicle is simple enough: instead of wheels or tracks, you build a vehicle with a pair of, as Wikipedia puts it "auger-like cylinders fitted with a helical flange." To make that a bit easier to understand, think of a machine that literally crawls along the ground on a pair of giant screws. To turn you use the same method a tank does: one screw either gets locked in place while the other one doesn't or, to make a 360 turn, turn one screw one way and the other ... well, the other way.

The article comes with a collection of some beautiful photos of this weird mean of transportation in action I bet very few of you even knew existed. Yeah, me neither.

  1110

 

You may also be interested in:

Behind the Scenes: Lego Antikythera Mechanism
June 6, 1944: Wrong Day for a Picnic on Normandy Beach
If An A-Bomb Falls
“Game of Thrones is more brutally realistic than most historical novels”
Founder of Mother's Day Tried to Abolish It After Commercial Greed Ruined It