Rocket Travel Time is a handy application for all budding astronauts, physicists, space ranger or ro
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FlyWheel Energy Storage Calc
Are you using Flywheel energy storage systems as part of your science world (novel or RPG)? Want to
看更多 »CatNameGen
Want to name your new kitten or cat? Now with this handy app you can carry around a source of inspir
看更多 »NukeCalc
Ever wondered how far away various effects felt from a nuclear blast will be depending on the size o
看更多 »CraterSizeXL
Want to know the kind of damage an impacting asteroid might do to Earth or another planet?CraterSize
看更多 »World Temperature Calculator
A handy barebones calculator for the mean surface temperature of a planet based on the distance away
看更多 »SpinHabitat
SpinHabitat is a useful utility to calculate the level of artificial gravity in a spin habitat of a
看更多 »AstroSign
AstroSign is a useful utility to calculate your zodiac birth sun sign and Chinese birth sign. Useful
看更多 »BeMIne BMI Calc
BeMIne BMI Calc is a handy utility to calculate your Body Mass Index based on your height and weight
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