Number of Atoms and Molecules Present in one water Drop.
Did you ever think how many atoms are in a drop of water or how many molecules are in a single water drop? The answer will depend on your definition of the volume of a water droplet. The average volume of a water drop is precisely 0.05 mL (20 drops per millilitre). It turns out […]
Read MoreProkaryotic & Eukaryotic: Two Types of Biological Cells
Two Basic Types of Cells 1.Prokaryotic cells: Prokaryotic cells are evolutionarily ancient. They were here first and for billions of years were the only form of life. Today most life is prokaryotic, and these cells are supremely successful. All bacteria and bacteria-like Archaea are prokaryotic organisms. 2. Eukaryotic cells: Eukaryotes can be single-celled or multi-cellular […]
Read MoreGrouping of Elements in the Periodic Table.
A Russian chemist Dmitri Mendeleev, in the late 19th century, published his first attempt at grouping the chemical elements according to their atomic weights. There were only about 60 elements known during that the time, later Mendeleev observed that when the elements are organized according to their weight, certain types of elements occurred in regular […]
Read MoreDifference Between Heat and Temperature
The concept of temperature and heat are studied together in science, which is somewhat related but not alike. The terms are very common, due to their extensive usage in our day to day life. There exists a fine line which demarcates heat from temperature, in the sense that heat is thought of, as a form […]
Read MoreThe Human Eye and its defects
The Human eye works on the refraction of the light through a natural convex lens, which is made up of transparent living material and enables us to see things that are present around us. And the ability to see is known as vision, eyesight or drishti. The human eye consists of the iris, pupil, cornea, […]
Read MoreWhy is the Sky Dark at Night?- Heinrich Olbers Paradox.
If you’ve ever looked up into the sky during the night, and wondered why the sky is dark, even though there are infinite numbers of stars? Also though there is a moon illuminating with bright light? Have you ever questioned this? Yes like us, this question has been posed by many philosophers and physicists over […]
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