These “moss balls” are popular pets in Japan ... because light penetration decreases with water depth, floating allows all marimo be exposed to bright light. Although it’s unclear how ...

This is a large white floating ball that has LEDs inside and cycles through different colors. Meant to be put into a pool for neat effects, we found it to be much more interesting just used around ...

Place a ball on top of the vacuum cleaner. Turn on the vacuum. Notice that the ball is floating in the air. Replace the ball with a different-sized ball or a plastic bottle. Try floating two styrofoam ...

Hold up a ball of clay about the size of a ping pong ball and ask students if they think it will sink or float in water. Place the clay in the water. Do you think that if I use ½-the amount of clay ...

Skimming mechanism of hydrophilic teeth for MP (MP, microplastic) balls / The neighboring ... applied not only to floating drones, but also to stationary systems such as water treatment filters ...

Do Olympic water polo balls float? Balls used in Olympic water polo float, allowing easier ball movement for players. It is made of waterproof material and contains certain textures to allow players ...