91色情片

If you tire of flicking through piles of textbooks looking for the formulas
for converting noggins into litres or foot-pound-force per hour into megawatts,
do not despair. Chuck out the lot and buy Scientific Unit Conversion by
Fran莽ois Cardarelli (Springer-Verlag, 拢19.50, ISBN 3 540 76022 9),
which claims to contain every scientific unit ever used鈥攁nd a reply card
for you to let the author know if he鈥檚 missed one out. All weights, volumes,
powers, areas, field strengths鈥攜ou name it, it鈥檚 here. Related units are
tabulated together for easy interconversion and, most importantly, into SI
units. A gem for engineers, scientists, historians, journalists . . .