Science

The cytoplasm (also known as cytosol) is the protoplasm of a cell outside the cell nucleus. It is the liquid found inside of cells. It…

Valency is a measure of the reactivity of an atom or molecule. In chemistry, valency (sometimes called valence) is the number of chemical bonds the atoms…

Covalent bonds occur when electrons are shared between two atoms. They are chemical bonds between two non-metal atoms. An example is a water, where hydrogen (H)…

The Los Lunas Decalogue Stone is a large boulder on the side of Hidden Mountain, near Los Lunas, New Mexico, about 35 miles (56 km)…

Colorimeter A colorimeter is a device used for measuring colors or colorimetry. It can measure the absorbency of light waves. It measures the absorbance of different wavelengths…

A karyotype is the number and appearance of chromosomes in the nucleus of a eukaryote cell. It is simply a picture of a person’s chromosomes.…

In chemistry, concentration is how much of a substance is mixed with another substance. Another definition is that concentration is the ratio of solute in a solution…

Molar concentration, or molarity, or simply concentration, is a term in physical chemistry. It measures the concentration of a solution or mixture. The concentration of…

The Kensington Runestone is a 202-pound (92 kg) slab of greywacke covered in runes on its face and side. It has been the subject of…

Cell division is the process by which a cell, called the parent cell, divides into two cells, called daughter cells. It is the process cells…

The human genome is the genome of Homo sapiens. The human genome is stored on 23 chromosome pairs in the cell nucleus and in the…

A number of “Runestones” have been found in ‘Oklahoma’. All of them are likely of modern origin, with some of them possibly dating to the…