While sitting down for copious hours at a time may not seem like a big deal, it’s actually a dangerous problem. Perhaps after reading this article you’ll try to get out of your chair more and strive to be a little more active every day.
Undeniably spectacular, these lesser-known gems are sure to reignite your wanderlust! One of the world’s most varied countries in terms of geographical diversity, India has an astonishing array of natural wonders. Here’s a round up to reignite your wanderlust!
Reporters Without Borders (RSF) presents the 2017 World Press Freedom Index. Don't wait to be deprived of news before defending it!
This homemade speaker uses a toy motor insteadof a coil of wire and a magnet.The amplifier wires are simply attached to a toy motor to make it vibrate. Use it to make a conductor speaker that only you can hear or attach it to a paper plate to make a simple speaker that will amplify the sound.
The rollback toy idea is put to the test to see how far we can get it to travel when powered by just 3 rubber bands. It is a great example of changing potential mechanical energy into kinetic motion energy. Fine tuning and given a long and wide enough area, this roll back toy has the potential to go 200 feet or more.
These devices are sometimes referred to as solar motors or thermal motors, or even thermal retraction motors. Sunlight hitting the strips is converted into thermal energy (heat) which then causes the rotor to turn without any electrical or other mechanical parts.
This inquiry activity investigates factors that make an object fall faster or slower and is an easy one for students to design, set up,and test.It does not require any special equipment and is a good way to use up and recycle used paper.
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