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How can studies on rats apply to humans?
science.howstuffworks.com/innovation/scientific-experiments/studies-rats-apply-humans.htm
Rats! They're just like family. Evolutionarily, anyway. So when it comes to research and biomedical study, what can they do for us?
How can the moon give us clean energy?
science.howstuffworks.com/environmental/energy/moon-clean-energy.htm
A few decades ago, the pursuit of clean energy was "green." Now, it's a necessity. Not only is our power consumption propelling the human race toward a hot, watery, lonely end, but clean energy tends also to be renewable.
How can there be seedless grapes? How can they reproduce?
science.howstuffworks.com/life/botany/question349.htm
There is a good chance that if you go to the grocery store and buy a bunch of grapes that they will be of the seedless variety. If the grapes are seedless, how are they able to produce new grapes? Find out the answer to that question in this article.
How can two seemingly unrelated species that live in isolation from each other evolve into identical forms?
science.howstuffworks.com/life/evolution/parallel-evolution.htm
Parallel evolution leads two seemingly unrelated species living in isolation from each other to evolve into identical forms. How? Learn about parallel evolution.
How can water cut through steel?
science.howstuffworks.com/environmental/energy/question553.htm
Waterjets are explained in this article. Learn about waterjets.
How can we speed up plastic photodegradation?
science.howstuffworks.com/environmental/green-science/speed-up-plastic-photodegradation.htm
Sunlight can break plastic down but not very fast. Is there a way to speed up the process so that natural environments like this one aren't cluttered with plastic debris for centuries?
How can you make water invisible?
science.howstuffworks.com/environmental/earth/oceanography/invisible-water.htm
Magicians say invisible water exists, and they often prove it by floating a small boat on thin air. Learn the magic behind the invisible water trick.
How can you measure the height of a tall tower?
science.howstuffworks.com/engineering/structural/question379.htm
Is there an easy way to measure the height of a cell phone tower in my neighborhood?
How can you train honeybees to sniff for bombs?
science.howstuffworks.com/bomb-sniffing-bees.htm
Those same, buzzing insects that seek out molecular hints of the pollen they use to make honey can just as easily detect traces of materials used to bombs.
How could a hotel orbit the Earth?
science.howstuffworks.com/hotel-orbit-earth.htm
A space hotel is currently under development by a European firm called Galactic Suite Limited. Learn about the development of the world's first space hotel.