0
POPSgarage door torsion spring My san diego garage door service and repair is a local san diego garage door company offering a range of services at affordable rates. Whether you need: garage door repair, engine replacements, new spring or install a new garage door our tech will get there for you 24/7. http://www.sandiego-garagedoor.com
0
POPSFast RC Boats Rcplanechat.com featured RC Hobby Shops that provides best RC Boats, Electric RC Boats, Fast RC Boats, and RC Boats Motors.
0
POPSRC Helicopter/Military Model/EU Standard
Apache AH-64 Longbow Helicopter R/C Copter Airplane Military Model 100% followed real US Army Apache AH-64 helicopter, can imitate almost all motions Double motors Double support wheels, which technology enables helicopter stop hanging in the air The main axis and the double propellers reverse design will balance out the torsion so that the helicopter can fly more steadily and agilely Main axis and accessional propellers made of carbonaceous materials, protect from broken Double accessional propellers:Up propeller can balance the fuselage when it makes raise force Down propeller can make the different speed and change the angle of the propeller when it makes raise force It is adopted high strength and quality material It has a good appearance with good ability to resist falling Come with original factory gift box Best gift for your friend! Full function remote contrlled 4Channels control ( 4 motion channels, up/ down, right/ left, front/back, turn round ) Fuselage lengt
1
POPS5 questions about pumpkin throwing A trebuchet is similar to a catapult, but there are differences. Can you explain them? A trebuchet is a gravity-driven machine. A catapult is a torsion-driven machine, where they twist ropes. At this year's contest you tossed a pumpkin 1,897 feet, nearly 200 feet farther than the guy in second place. To what do you attribute your success? Brute force. We win just because we're bigger and heavier than the other machines. Our machine is about 65 feet tall and weighs 26 tons.
3
POPSThe BEES NEEDS Thousands of scientific papers were kept classified for reasons of "national security" by the KGB, until the fall of the Iron Curtain in 1991.
1
Pops
Newest Clips
Latest Comments
Most Pops
Print
Save
Turn on live update