Digging a hole in the moon across its diameter
2998
If it was possible to dig a hole that went from one side of the Earth to the other...
6076
Rocket propelled by a giant monochromatic laser
135813
Soving a Complex Integral along a circle
121594
Amateur moon laser ranging
9303
A water pipe from sea level to beyond the atmosphere
21278
Story about a probe sent outside the solar system, awaiting a signal from it
75324
Sphere rolling up a ramp
2237
How to cut a rounded hole in a sphere?
64060
Is it possible to obtain a sphere from a quotient of a torus?
39335
Enlarging an ellipses along normal direction
114825
Spherical Displacement direction
24244
Distance from the surface as an input node for use with volumetric materials
99935
Finding the unique rock with its weight
11655
Building a wormhole
43961
Work done against gravity
69598
Why does the Moon face Earth with the same side?
140612
Two homologous but not homotopic loops on a closed surface of genus greater than one