Even though we usually think of water as running downhill, it can indeed flow upwards using a process called capillary action. This is the very scientific principle that explains how water goes from the soil upwards into the stem of plants.
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The air pressure around us affects our weather. Notice how your weatherman always mentions various pressure systems (low-pressure system, high-pressure system, etc.) and how they will affect tomorrow’s weather. In this experiment, we will create a tool that lets you gauge the pressure of the air around you.
The clouds in the sky form when water vapor is cooled enough to form tiny water droplets. When moist, cool air rises to a higher altitude, it cools, water droplets are formed, and voila – you have clouds. In this experiment we’ll duplicate this same process by causing the air in a bottle to rapidly…
Named after Daniel Bernoulli, the Bernoulli Principle states that as the velocity of a fluid increases, a decrease in pressure occurs. The mathematician Daniel discovered many new ideas regarding fluids and pressure. For instance, Bernoulli, who had earlier begun to study medicine, wanted to know about the relationship between the rate of blood flow and…
Inertia means that a rolling ball on a smooth, level surface will roll forever if nothing stops it. In fact, friction and air pushing against the moving ball will eventually bring it to a stop. But interesting things happen when a motionless object gets in the way of a moving one. Try this experiment and…