[Proposal] Luna-2 sphere

[Teilnehmer]

Sixty years ago, in 1959, the first artificial object touched another celestial body. It was the  Luna-2 probe. It contained two stainless steel spheres made of 72 pentagonal tiles each and explosive charge inside. The point was that while most of the tiles would be vaporized on impact at a high speed, one or two tiles facing backwards would be slowed down a bit by the explosion and survive the impact.

I believe this concept can be implemented as a KSP mod so we could celebrate the 60th anniversary of the event on September 13 with a couple of glossy tiles lying intact on the surface of the Mun (or RSS Moon).

 

Edited March 19, 2019 by Teilnehmer

[kerbiloid]

(obsolete, forget it)

Spoiler

https://math.stackexchange.com/questions/1609854/possible-all-pentagon-polyhedra

https://robertlovespi.net/2016/08/02/two-polyhedra-with-only-pentagonal-faces/

Spoiler

 

P.S.
Probably, this.
https://en.wikipedia.org/wiki/Truncated_icosahedron
20 hexa + 12 penta
Every hex is splitted into 3 penta. (As we can see on the probe photo)
So, 20*3 + 12 = 72, with the same arc length of all edges

P.P.S.
https://blender.stackexchange.com/questions/31727/truncated-icosahedron

https://scorpius.github.io/tut-wings-soccer1.htm

(But some edges should be longer than others, to get them equal after splitting the hexes into 3 pents)

In wings3d can be done easily.

1. Right Ctrl → Icosahedron
2. Select Bodies → (select it) → Select Vertice
3. Right Ctrl → Bevel → Tab → 0.5
4. Select all long edges
5. Right Ctrl → Cut → 2
6. Select all wide faces.
7. Right Ctrl → Inset → any number between 0 and 100, say, 50
8. Right Ctrl → Collapse
9. Select all edges attached to the original pentangles (6 per former wide face)
10 Backspace (remove them)
11. Select all original pentangles.
12. Right Ctrl → Move → Normal → Tab → - 0.05
13. Select all vertice in the center of the former wide faces
14. Right Ctrl → Move → Normal → Tab → 0.1

Edited March 19, 2019 by kerbiloid

[Teilnehmer]

I think, it would also be nice to have a simplified version (say, a dodecahedron) alongside a replica to reduce the part count (craft count after the detonation) and therefore the lag.

Edited March 19, 2019 by Teilnehmer