EXPLORE

Meteorological
& climate monitoring
satellites: their
early European history

History of artificial satellites
by Helen Gavaghan
BOOK FOR SALE

Preface, notes and sources for the satellite history

SCIENCE FOR
SCIENTISTS

TECHNOLOGY

FROM THE PUBLISHER

WELCOME

HUMANITIES
Antarctica before the Antarctic Treaty, part one,
by Helen Gavaghan.

SCIENCE
CLASSIFICATIONS IN BIOLOGY: Life, Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species.

GEOLOGICAL AGES. bya means billion years ago.
EONS: Hadean (4.6 to 4 bya), Archaen (4.0 to 2.5 bya), Proterozoic (2.5 to 0.542 bya).
http://www.bgs.ac.uk/discoveringGeology/time/timechart
Source: British Geological Survey.

CHEMISTRY.
Periodic table and other basic chemistry.
http://www.rsc.org/periodic-table
Source: Royal Society of Chemistry.

ELECTROMAGNETC RADIATION. The shortest wavelengths are gamma rays. The longest are radio waves, ranging from 100s to 10-thousand centimetres from peak to peak. The distance between peaks of gamma rays are billionths/millionths of centimetres. Between the two extremes lie X-rays, ultra violet, visible, infrared and microwaves.
Take a look at this useful graphic of spectrum wavelenghths, energy range and wavenumbers: http://rpw.chem.ox.ac.uk/coll/spectrum.html

WEB DEVELOPER URLs

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2. WC3 site index
3. Python
4. www.whatwg.org
5. Web SGML and HTML 4.0 Explained, by Martin Bryan. Visit www.is-thought.co.uk/book/home.htm (Addison Wesley Longman).

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