How do magnets work? What makes a curve ball curve? What keeps an airplane in the air? How can a pulley make you five times stronger? Now you can learn the answers to these and other questions about basic physics through 101 fun, safe, low-cost experiments and activities that can be performed at home or in the classroom.
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Lehekülgede arv256 lehekülge
Lugemise aeg8:32 tundi
Arvutus põhineb keskmisel lugemiskiirusel, kus 200-250 sõna lugemiseks kulub 2 minutit.