A Basic and Refresher Workshop for Engineering Design Water Bottle Rocketry. - ppt download: Purpose & Objectives of this Session Encourage and promote the integration of STEM standards and concepts into the building and designing processes of the Water Bottle Rocket Explain Guidelines of the competition Help you teach your students: –Problems solving skills –How to budget their time –Cooperative behavior –Engineering and design concepts Let’s Focus On

History of Rocketry Ancient Rockets Rockets for Warfare - ppt download: Ancient Rockets B.C. to 17th Century Ancient Rockets B.C. to 17th Century The Dream to Fly Ever since humans first saw birds soar through the sky, they have wanted to fly. The ancient Greeks and Romans pictured many of their gods with winged feet, and imagined mythological winged animals. According to the legend of Daedalus and Icarus, the father and son escaped prison by attaching wings made of wax and feathers to their bodies. Unfortunately, Icarus flew too near the sun, and the heat caused the wax and feathers to melt. The feathers fell off, and Icarus plummeted to the sea. Daedalus landed safely in Sicily. Hero’s Engine About 100 BC, a Greek inventor known as Hero of Alexandria came up with a new invention that depended on the mechanical interaction of heat and water. He invented a rocket-like device called an aeolipile. It used steam for propulsion. Hero mounted a sphere on top of a water kettle. A fire below the kettle turned the water into steam, and the gas traveled through the pipes to the sphere. Two L-shaped tubes on opposite sides of the sphere allowed the gas to escape, giving a thrust to the sphere, causing it to rotate.

An Introduction to Water Rocketry - ppt video online download: Parts of a Basic Water Rocket

Doctor pulls live TICK from inside patient's ear where it had been living for days Ear, nose and throat surgeon Rahmat Omar was looking carrying out an exploratory procedure, to try and work out why the man was having pain from his ear A doctor filmed the revolting moment he removed a live tick from deep inside his patient's ear canal. Ear, nose and throat surgeon Rahmat Omar was trying to find out why the man was having pain in his ear. The doctor, 49, based in Kuala Lumpar, Malaysia, said: "The patient was in a lot of discomfort, they were so happy when I removed it. "It's certainly the first time I have ever seen this and I hope I never have to do this again." The shocked surgeon couldn't believe his eyes when he saw the tick inside the patient's ear during the removal and he carefully grabbed the wriggly insect and pulled it slowly out. He added: "It could have been very dangerous.".