first radiation constant
	E Q U A T I O N S
		A times B
		1		char imped of vac		1/(32 pi)		0.069229
		2		conductance quntm		1/(64 pi)		-2.688008
		3		first radiaton sr		pi		0.219921
		4		hc squared		2 pi		1.877223
		5		Lyman gamma		4 pi squared		0.015067
		6		second radiation		von Klitzing		0.972493
		7
		8
		9
		10
		A divided by B
		1		2 pi		neutron mass kg		0.255159
		2		hc		Bohr radius		0.473562
		3		n u momentum		fine structure		0.189331
		4		pi		molar gas constnt		3.215113
		5		Planck / 2 pi		classical elct rd		0.096761
		6		Compton / 2 pi		4 pi squared		0.219921
		7		hc		Planck / 2 pi		0.301403
		8
		9
		10
		11
		12
		13
		14
		15
		16
		17
		18
		19
		20
				A constant appearing in the Planck radiation formula; its value depends on
				the form of the formula used; in the formula for power emitted by a blackbody
				per unit area per unit wavelength interval.
				highligted		derivative		nist
				copyright   steve waterman   january 2009