How does a chain pulley work?
In a educational video for kids about pulleys, a device named a "chain pulley" was mentioned, which was supposed to keep the load up without having to pull on it continuously (like with a tackle and block). I find this hard to believe (especially
...part of a standard chain hoist setup.
Commercial chain pulleys, also called chain hoists, are designed to lift very heavy loads up to 25 tons safely. To do this they include a brake assembly to prevent the load from coming back down until
Due to the lack of bridges, school buses or any other 
Students across US are so inclined to Angry Birds Rio that they are testing the Physics concepts using soft toy characters of the game. The game leverages from prime concepts of Momentum, Mass transfer, Motion and Velocity. The professors at school and universities have made the case study as part of their curriculum. The questions that must be addressed by the students while performing Angry Birds Experiments include: • Why White bird, Egg Beater, drops its egg the way it does? • What is...
Angry Birds Rio is Equal to Addiction Angry Birds Rio has been one such app supreme app that has made its impression amongst the minds of gamers. Today, Angry Birds Rio is the first app that a smart phone user looks to download on their iPhone or Android enabled device. The game is based on a storyline and simple concepts of Physics. The pulley based game has perhaps the best graphics packed in a 15MB odd size. The motive of Angry Birds Rio is to free the endangered blue Mackaws from the clasp...
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Kids in Uruguay are using them. Linux, 12-hour battery life, a pulley for hand-generated power, 1 gigabyte of flash memory, built-in wireless networking. $175 (expected to fall to $100). More memory and battery life than a Palm Foleo for one-third the price. They're not just for goat farmers anymore, Alex.