ED Science

Traditional thermometers look like a glass tube, with a scale and a narrow tube in the middle which is filled with some kind of a liquid. In most cases the liquid is mercury, a metallic liquid. Some types of thermometers use alcohol as well. The reason for this is that mercury and alcohol expand when […]

Many advertisements are showing bladeless fans, but how do they work? The answer is that these fans actually have blades, but they are concealed in the fan’s pedestal. These types of fans suck the air into the pedestal, transport it through a tube and push it out of the front. The working method of these […]

When you hear mirrors you probably think of a reflection, but what you see isn’t exactly a reflection of yourself. When we are standing in front of a mirror, we see a light-print of everything facing the mirror’s area. Mirrors scatter light in a special way and cause specular reflection. The light particles which hit […]

Everyone has used an aerosol can, but do you know how the fluid comes out? The most common method is using 2 types of fluids in the tank – one is stored under high pressure and another one is used to push the second fluid. Cans are usually made of a strong metal which can […]

It seems like body hair doesn’t have an important purpose, so many of you probably ask – why do we grow body hair when we don’t need it? The answer to this question is provided by a team of researchers who found out that our body hair can help us detect parasites and bugs. This […]

Their working method is similar to the one of mirrors, but they display a reflection. The most basic kaleidoscope is made of two mirrors and a 30-degree wedge. Holding the kaleidoscope differently will change the wedge’s position and the light will hit the mirrors under a different angle. This causes a variety of colors and […]

I recently saw a graphic posted by the National Oceanic and Atmospheric Administration. The graphic explained how rip currents work and how to escape from them. I believe that this is information that should be known by anyone, so keep on reading to find out more about rip currents and how you can escape their […]

Researchers have developed a new model explaining how we react to different sounds. The model will help understand why some sounds are unbearable to us, for example, nails on a chalkboard. One of the things that must be noted is that the brain has something like an alarm system which reacts to different noises. The […]

Explaining this is a bit tricky and you may think that we mean the opposite of what we are saying, but we assure you that there is nothing wrong with the following statement. The sun is farthest from Earth in July and closest in January. It is true that the temperature on Earth depends on […]

This is one of the most common questions people ask – why do finger and toe skin wrinkle, but other parts of our body don’t? The reason for this is that our skin is the thickest near the top of fingers and tops. A big fraction of the thick skin is created by dead keratin […]