In the 1920s, Satyendra Nath Bose was studying an interesting theory about special light particles we now call photons (光子). Bose had trouble convincing other scientists to believe his theory, so he contacted Albert Einstein. Einstein's calculations helped him theorize that atoms would behave ...
If you know where a certain element sits in the table, and you know a little bit about the properties of the elements above, below, and either side, you can often figure out what the properties of that element will be.How do atoms make molecules and compounds? Atoms are a bit like ...
How can the Sun attract the Earth without coming into contact with it? the world is no longer made up only of particles We must instead think that there exists an entity diffused throughout space, A new actor – the field – appears on the scene. whether these lines of force could...
We're still learning about these structures, but what we've learned so far is very exciting. A carbon nanotube is a nano-size cylinder of carbon atoms. Imagine a sheet of carbon atoms, which would look like a sheet of hexagons. If you roll that sheet into a tube, you'd have a ...
where is the dielectric constant of the semiconductor, are the carrier densities of electrons and holes respectively, , are further densities of ionized acceptor and donor atoms, and are physical constants. This equation looks somewhat complicated, but is mostly determined by the carrier densities ,...
your fingers are all made of the same substance. they are made up of similar tissues, cells, atoms, and at the deepest level, subatomic particles. similarly, when your experience of nonduality becomes more subtle, you discover that everything is just different expressions of one continuous fiel...
In order to make it from the elements, you need a chemical reaction, so then the elements are no longer elements (but the oxygen is still an oxygen). The confusion comes from the first part of the definition: An element is a species of atoms. We call those atoms that have 8 ...
Speakers tend to be built into "enclosures" (as engineers call them—the rest of us call them "boxes") to amplify their sounds and keep them safe from damage. If you look closely, you'll see speaker enclosures usually have openings at the front or the back so air can move more freely...
Amino acids are made of a central carbon atom, an amino group (NH2), a carboxyl group (-COOH), an organic R group (side chain), and hydrogen atoms. Q Which polymers are comprised of amino acids? A Proteins are made up of amino acids. Q Which two functional groups are always found ...
What do you call a compound that consists of only two atoms and has a net charge of zero? A negatively charged ion is called a(n) (a)___; a positively-charged ion is called a(n) (b)___. An ion is an atom or molecule that has a ...