Introduces readers to light waves. Its vibrant, hands-on examples help explain what light waves are, how they work, and how they can be used for communication.
Introduces readers to sound waves. Its vibrant, hands-on examples help explain what sound waves are, how they work, and how they can be used for communication.
?Sab?as que la Tierra es un gran im?n? Las br?julas utilizan peque?os imanes que pueden detectar el campo magn?tico de la Tierra. Obtenga m?s informaci?n sobre los imanes y c?mo funcionan.
Explores the role of physics in everyday life, explaining hydraulics, the forces of weight and friction, velocity and gravity, chain reactions, and the movement of park swings.