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Search results for "PhilH"

Present Value

Added May 26, 2011 by philhill in Money & Finance

calculate the net present value of cash

Snell's Law w. simple substances

Added Apr 8, 2011 by Byron Philhour in Physics

Very simple Snell's Law refraction widget.


Wave Grapher

Added Dec 1, 2010 by PhilH in Physics

Super simple widget. Graphs transverse waves based on wavenumber, angular velocity, and amplitude.

Transit planet temperature

Added Dec 6, 2010 by PhilH in Astronomy

This calculator determines the surface temperature of an exoplanet based on information about how far it is from its host star and how luminous that star is.


Cosmological Redshift

Added Dec 10, 2010 by PhilH in Astronomy

A cosmological redshift calculator - the defaults are values given by concordance cosmology.


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