Angle
Constructing a triangle from its angle bisectors at cut-the-knot
Triangle From Angle Bisectors
Angle Bisectors in a Quadrilateral at cut-the-knot
Angle Bisectors in a Quadrilateral
Angle Bisectors and Perpendiculars in a Quadrilateral at cut-the-knot
Angle Bisectors and Perpendiculars in a Quadrilateral
Angle Bisectors at cut-the-knot
All about angle bisectors
the website of John Baez , especially Questions 1 and 2.
John Baez's Stuff
Rotations and Angular Momentum on the Classical Mechanics page of
Satellite finder with magnetic north, azimuth & elevation calculator
Satellite finder, how to point dish with magnetic north, azimuth and
elevation program calculator satalite satelite
More complete latitude and longitude database heavens above countries
Select Country
Longitude and latitude distance
How Far Is It? by Indo.com, Discount Bali Hotels
Analysis of the 5 Regular Polyhedra gives a step-by-step derivation of these exact values.
Platonic
USGS Geomagnetism Program
USGS National Geomagnetism Program | Home
PBS Nova Online: ''Lost at Sea, the Search for Longitude'' pbs nova longitude
NOVA Online | Lost at Sea: The Search for Longitude
Zoomable version of the map (pdf)
Distance calculation based on latitude and longitude - JavaScript version
MarineWaypoints.com - Great Circle Distance Calculator
Worldwide Index - Tageo.com – contains 2,700,000 coordinates of places including US towns
Directory of 2,667,417 cities in world | Geography Population Map City and cities coordinates location
NASS - Convert degrees/minutes/seconds to decimal degrees and vice versa - JavaScript version
NASS - Convert Deg/Min/Sec to Decimal Degrees and Vise-Versa
Convert decimal degrees into degrees, minutes, seconds - Info about decimal to sexagesimal conversion
How To Convert Decimal Degrees into Degrees, Minutes, Seconds
Resources for determining your latitude and longitude jan
How to find your latitude and longitude
Look-up Latitude and Longitude
Latitude & Longitude - Look Up
Several derivations of the Cosine Law, including Euclid's at cut-the-knot
The Law of Cosines
The Law of Sines at cut-the-knot
Sine, Cosine, and Ptolemy's Theorem
Excellent tutorial on the law of sines home
Law of Sines
IAU/IAG Working Group On Cartographic Coordinates and Rotational Elements of the Planets and Satellites
IAG TRAVAUX 2001
Magnetic declination maps calculator
Disitron Satellite Group - Satellite Finder
Elementary calculation of solar parallax using 2004 Venus transit data (algebra and trig only)
Transits of Venus
Simple method of using binocular parallax to estimate distances outdoors stargaze
Parallax
Sky at Night programme: Patrick Moore demonstrates Parallax using Cricket. (Requires RealPlayer)
Java applet demonstrating stellar parallax courses java parallax parallax
Parallax
Pythagorean Theorem -- From MathWorld wolfram
Pythagorean Theorem -- From MathWorld
Vedic Mathematics html math math mathematics
Vedic Math and the Spiritual Dimension: Index
There's a bit of http://www.froola.com in all of us.
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Angle , Angular velocity , Azimuth , Dihedral angle , Dipole , John Harrison , Latitude , Law of cosines , Law of sines , Longitude , Magnetic declination , Parallax , Pythagorean theorem , .
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