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Contents Mathematics Fermat Physics Wordlist Notes Chemistry Quick Facts Reference LINKS

~Sciencepages~

E2 = m2 c4 + p2 c2 where p = momentum of the particle; cancelling down gives E = mc2. - mc2 is the negative energy state. With a suitable input of energy, the particle can obtain a positive energy state.

For a light particle which has no mass the equation cancels to E2 = p2 c2.

Planck's constant: E = hv, where v is frequency of the wavelength, and h is constant at 6.55 x 10 -27 erg seconds, or units of actions. Combining E = hv with p = hv / c and L = c / v gives pL = h, where L (lambda) is wavelength, is multiplied by momentum. The smaller the wavelength, the greater the momentum.


Sciencepages Links:


Educational institutions and online reference resources:
The NCSA's Relativity Group
Relativity Theory
Astronomy
Black holes, singularities and other interesting things
Analytical chemistry lectures
Huge site at Virginia State University - Various science and other subjects covered
Cape Town University's online physics courses
Intro to particles
More cosmology
Satellite communications systems
Introductory physics tutorials


Organisations:
Astromical listings
European Centre For Medium Range Weather Forecasts - An example of dynamic systems modelling
Commonwealth Scientific and Industrial Research Organisation
AIP
IoP
UN - Environment, economics and other subjects
IEEE
International Telecommunications Union - Telecommunications standards body
Listing of more standards bodies


Electronic smartcards and digital cash:
Mondex UK
Multos
Digicash


Data Encryption and Digital Signatures:
PGP
Mc Afee PGP
M.I.T. PGP version - U.S. only
International PGP version


Publications:
Scientific American
New Scientist
Design Engineering
Computer Weekly Magazine


Books, Software & Miscellanea:
Adept Scientific
Mathematica
Mathcad
IBS
Dillons
IoP Publishing
IoP Online Bookstore
The Bookplace
Scientific and technical books
Amazon Books


If you are an educational institution, science - related organisation or enthusiast, and would like your link added to this page, please email us with your URL and details. We will review submitted sites for inclusion. Anyone wishing to link to this site, please email us.


About Sciencepages:

Sciencepages is a short compendium of notes offering brief introductions to basic calculations used in experiment, systems modelling or other contexts. Sciencepages is updated periodically with additional material.

Disclaimer:
While every effort is taken to ensure accuracy, errors may occur. We recommend interested visitors consult good university - level texts, such as 'University Physics' - H Young and R Freedman (9th ed. Addison Wesley, ISBN 0-201-31132-1), or others.


Contents Mathematics Fermat Physics Wordlist Notes Chemistry Quick Facts Reference LINKS


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