This xenon ion engine, being tested at NASA's Jet Propulsion Laboratory, shows the faint blue glow of charged atoms being emitted from the engine. Next, see what type of rocket could make space travel affordable for the masses. Air-breathing rockets could dramatically decrease the cost of ...
which is close as you can get to visualizing what an atom really looks like. The orbitals are labeled. It describes other ways to visualize atoms, namely, electron orbits (like planets) and surfaces of constant
Breathing air enriched in oxygen is a real treatment for conditions in which either disease (for example smoking-induced lung cancer) prevents the absorption of sufficient oxygen, or conditions (for example reduced peripheral blood flow) make it desirable to increase the amount of oxygen in the bl...
So, yes, we do have a lot of people playing games on advanced hardware, but we also have scientists writing words with individual atoms, or calculating engineering feats that were previously impossible, or making art so detailed that it can't be distinguished from reality. The same person ...
For centuries, people knew pure carbon in two forms, diamond and graphite. Diamond is three-dimensional matrix of carbon atoms in which each atom is bonded to four others in a tetrahedral arrangement. Graphite on the other hand consists of two-dimension sheets of hexagons, like a honeycomb, ...
To get the steel to fall out the bottom of the crucible at the right moment, you plug a hole in the bottom with a disk of material designed to melt through when the hot iron reaches it. My first large batch, about a pound, burned great for about 3 seconds and then exploded, which...
All other kids (known, unknown, and descendents of distant cousins) are now waiting for their B'day!! This is extremely simple to make, all you need is the desire, hand tools and a few hours to spare. So let's get going …. ...
when the number of protons and electrons in an atom is not equal, the atom becomes a charged particle called an ion. Geiger counters are able to detect ionizing radiation, a form of radiation that has the ability to transform neutral atoms into ions. The three different kinds of ionizing ra...
This photo looks like that episode of The Magic School Bus when Miss Frizzle takes the kids into the cardiovascular system of an unsuspecting person. They whip around in there for a while dodging blood cells and driving dangerously close to vital arteries until she manages to deliver them safely...
Objects at the smallest scale — atoms and many molecules — are smaller than the wavelength of visible light. This means they arebelow the theoretical limitof what can be seen, even with the most powerful light microscope. So researchers experimentally determine the structures of molecules using ...