How many Planets do we have In early times, people studied the night sky, by observing the objects with the naked eye, and then through telescopes. In the night sky, planets appear as bright specks of light, much like stars. They do not twinkle. While the stars show no visible change in their position in the sky, the planets seem to move or ‘wander’ with respect to the stars. … [Read more...] about How many Planets do we have
Physics
What are the Small Bodies that Orbit Planets
What are the Small Bodies that Orbit Planets Small Solar-System Bodies These include asteroids, comets, and other small bodies. Asteroids These are large pieces of rock or metal and rock. Most asteroids orbit the sun between Mars and Jupiter. This region is called the Asteroid Belt. Astronomers have so far recorded the orbits of over 4000 asteroids. There are thousands … [Read more...] about What are the Small Bodies that Orbit Planets
What is meant by combinational logic circuits?
What is meant by combinational logic circuits? Combinational Logic Circuits using Logic Gates:Some logic operations may require more than one logic gate. Different combinations of gates are designed for different operations. The behaviour of the combined logic gates can be determined by constructing a truth table of the combined gates. Figure shows a combination … [Read more...] about What is meant by combinational logic circuits?
Is the Moon a Planet or a Star
Is the Moon a Planet or a Star A relatively small body that revolves around a bigger body like a planet is called a satellite. The moon is the Earth’s only natural satellite. Most satellites are small compared to the planet they orbit, but our moon is fairly large in comparison. It is about one-fourth the size of the Earth. The surface of the moon has many craters, which were … [Read more...] about Is the Moon a Planet or a Star
What is the half life of a radioactive element?
What is the half life of a radioactive element? Half-life:Radioactive decay is a random process. This means that all the unstable nuclei have the same probability to decay at a certain instant. It is not possible to predict when a particular nucleus is going to decay. The unstable nuclei will decay at different times, some decay earlier while others will decay at a … [Read more...] about What is the half life of a radioactive element?