What is a mirage? A mirage is a naturally occurring optical illusion that occurs when light bends due to temperature differences in the air and result in making objects appear to be in different location than they are. Sometimes, it also creates a view of a pool of water or a distorted reflection on the … Read more
Enter any two known parameters such as mass and volume, volume and density or mass and density to find the third unknown parameter Density Calculator Density (g/cm³): Mass (g): Volume (cm³): Calculate
Do you know what do cameras, eye glasses, telescopes and microscopes have in common? The object at the core of these devices is an optical lens. A lens is a transparent object and light is refracted when it passes through the lens. Lens is used in many optical instruments such as cameras, microscope, telescope, optical … Read more
This fun and interactive widget lets kids explore the world of sound by creating their very own sound waves! They can choose from four wave types—sine, square, triangle and saw tooth—each with its own unique sound and matching colorful animation. Using simple sliders, kids can adjust the frequency (how high or low the pitch of … Read more
In our daily life, we hear a lot of different sounds; sound of other people, sound of car, sound of water flowing, sound of different animals etc. Have you ever wonder how sound is generated and how do we hear the sound waves? How Sound Waves are formed? Let’s take a simple example. Throw a … Read more
Binoculars are interesting devices that helps us in viewing distant objects with some level of magnification. It can be used for many things such as sporting events, star gazing, bird watching along with many different natural views. How it works? The below diagram shows the construction of a typical binocular: In order to understand the … Read more
Electricity is one of the most important inventions of our age. Our lives are heavily dependent on electricity. Whether it is lighting, home appliances, powering mobiles and computers, factories, transportation, in fact all sectors in some way rely on electricity. So what is electricity? Firstly it is a form of energy. It is produced when … Read more
We see different kind of colors all around us. But have you wondered what happens when different colors are combined together? When two different colors mix together, they form an entirely new color. This is how artists, designers, and even scientists explore the world of colors. At the heart of color mixing are the primary … Read more
A microwave oven is useful device that helps in cooking delicious food for us. Have you wonder how it works? A microwave oven works by using microwave radiation to heat food quickly and efficiently. Microwave radiation As the name implies, it uses microwaves radiation to heat food. Microwave radiation is a type of electromagnetic radiation … Read more
You might wonder, if it really possible to lift things up without any visible support and that too in real world? The answer is yes but to a certain extent limited only due to current technological limitation. Before further explaining the answer, let’s first see how magnets work. If you observe a permanent magnetic in … Read more