Search our database of handpicked sites
Looking for a great physics site? We've tracked down the very best and checked them for accuracy. Just pick a topic, tell us your age and knowledge level and we'll do the rest.
You searched for “number”
We found 4 results on physics.org and 64 results in our database of sites
Search results on physics.org
Search results from our links database
Showing 1 - 10 of 64
Showing 1 - 10 of 64
Quantum Numbers
Each electron has a set of four numbers, called quantum numbers, that specify it completely; no two electrons in the same atom can have the same four.
Rating: 
Hits: 186
Quantum Numbers, Atomic
Statement of quantum numbers for a hydrogen atom.
Rating: 
Hits: 124
Atomic Number
In the modern periodic table, the elements are actually arranged in order of increasing atomic number--that's the number of protons in one atom of a particular element.
Rating:
Hits: 164
Binary Numbers
This site contains a very simple description of binary numbers and binary arithmetic.
Rating:
Hits: 197
Fibonacci numbers and the golden section
This pages introduces the Fibonacci numbers and why they appear in various "family trees" and patterns of spirals of leaves and seeds. It also covers why the golden section is used by nature in some ...
Rating: 
Hits: 47
Audio Compact Disc
Analog sound data is digitized by sampling at 44.1 kHz and coding as binary numbers in the pits on the compact disc. As the focused laser beam sweeps over the pits, it reproduces the binary numbers ...
Rating:
Hits: 289
The Joy if Pi
No number has captured the attention and imagination of number fanatics and nerds throughout the ages as much as the ratio of a circle's circumference to its diameter. pi. With historical insight and ...
Rating:
Hits: 192
Celebrate Pi Day!
A resource that gives a large number of links to all kinds of sites associated with Pi. Pi day is 14th March, 3/14 in American notation. A large number of links give access to material that can ...
Rating:
Hits: 152
Hyperphysics - Particle Interactions and Conservation Laws
Conservation laws in quark interactions involving baryon number, lepton number, entropy, parity, isopin, strangeness with good links to other relevant areas of the site.
Rating: 
Hits: 223
Freefall
Simulation of an object being dropped, with speed and time taken to fall from different heights. Velocity and gravity can be varied. Negative numbers for height put the object upwards.
Rating:
Hits: 688
Showing 1 - 10 of 64