What is a wedge? Wedges are triangle-shaped objects or tools that can be used to make work easier. The small pointed end (which can often be blunt, not sharp) can be used to lift and separate objects. ...
The sun is a wonderful (and free) source of energy just waiting to be harnessed. You can build a simple solar hot dog cooker for use on a sunny day.This hot dog cooker uses a reflective parabola. A pa ...
If you swirl water around in a cup, you’ll notice how easily and fast the water will move. But have you ever tried to swirl some maple syrup around in a cup? It doesn’t respond to your movements in th ...
Energy is stored in the bonds of molecules. When these bonds split apart, the energy released can be used to do work. Breaking apart liquid water molecules into hydrogen and oxygen gas creates an enor ...
This project deals with an idea for an energy source that is derived from the motion of what people are already doing. For instance, imagine cars moving on the freeway, and that the cars are somehow m ...
A powered parachute can best be described as a flying go-kart.How cool is that?But powered parachutes are more than just an exciting way to see the world.They have other important uses as well.But cer ...
Survival is our main goal as animals. Living in the comfort of a home with all the amenities it’s easy to forget this basic instinct. Stories of survival exemplify our human capabilities when faced wi ...
Vacuuming is a household chore nobody likes, especially when you have to stop and change the attachments. It isn't hard to imagine a new and improved vacuum cleaner with rotating attachments that chan ...
Rockets work by way of jet propulsion. The principle behind it is based on Newton's Third Law of Motion: For every action there is an equal and opposite reaction. When a rocket blows out gas at high s ...
Benford's Law, also called the first-digit law, describes how in lists of numbers from many everyday sources of data, the leading digit is distributed in a specific, predictable way. This experiment w ...