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July 28, 2023 |
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Sleep Are You a Lucid Dreamer? A sleep researcher who studies what dreams can tell us about the possible onset of some mental disorders believes lucid dreamers might hold a lot of answers in their heads. | | By Gary Stix,Jeffery DelViscio | 10:12 | | | |
BRING SCIENCE HOME | Build a Balloon-Powered Car | Start your (balloon) engines! Learn how you can power a toy car with air--and a little knowledge of physics. Then challenge a friend to a race! Credit: George Retseck | Turn a pile of trash into a toy car—and watch it go! In this activity you will learn some physics concepts and use recycled materials to build a toy car that is propelled by a balloon. You can even find a friend, build two cars and race them against each other. Whose car will go the fastest? | | | |
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