It is shown, with the topic of hot air balloons, that certain rituals in our teaching practices can evenmake physical theories seem inconsistent. Using these examples, I discuss how we might better highlight the physicalphenomena under study, and I give evidence of students' and teachers' ...
Balloons are a must for this one! These simple experiments explore the concept of static electricity in a hands-on way. STATIC ELECTRICITY BUTTERFLY Discover how static electricity can make a butterfly’s wings move without touching them! This fun physics experiment uses a negatively charged ball...
Clouds are like hot air balloons! Whenever liquid water condenses from H2O gas, it releases thermal energy. When moist air turns into droplet-filled air, the droplets are hot, and they warm the air too. The heated air expands and becomes less dense. Is this enough to stop the falling ...
To get an idea of these altitudes, when Felix Baumgartner broke the world record for the highest skydive on October 14, 2012, he was jumping from 39 kilometres (24 miles). This is a few kilometres above where the current weather balloons reach, i.e., in the middle of the stratosphere: ...
(credit: Allied Navy) (c) Helium-filled balloons tug upward on their strings, demonstrating air’s buoyant effect. (credit: Crystl)Answers to all these questions, and many others, are based on the fact that pressure increases with depth in a fluid. This means that the upward force on ...
Design a Popsicle Stick Catapult for an easy physics experiment for kids of all ages! Engineer this rubber band powered car Static electricity experiment with magic goo Making butter kinetic energy experiment Balloons are a must for this static electiricy experiment exploring fun physics! Easy Scienc...
Learn the definition of Air pressure and browse a collection of 209 enlightening community discussions around the topic.
You may know helium as the gas that can make balloons and blimps float. At the University of Maryland, scientists are using this element to study the exotic physics ofquantumvortices: the tornadoes or bathtub-drain whirls of the quantum world. Unlike these large-scale events, we do not unde...
Gamma-rays of energies <0.1 TeV cannot penetrate deeply into the Earth’s atmosphere. Therefore, for the detection of gamma-rays <100 GeV, one has to bring the instruments above the atmosphere, either with the help of balloons, or even better into space with satellites. Gamma-rays above\(...
an air balloon hovers at a certain altitude above ground. A pilot throws a sand bag down from the balloon. What is the direction of the balloons velocity just after the bag was thrown? straight up What is the momentum of a cannon after firing a cannon ball with an initial momentum of ...