Technology · Item
Lens and mirror
Ground glass and gold-backed glass: the optics of spyglasses, telescopes, sensors, dishes and satellites.
In the game
How to get it
At the grid: 4 cells of glass in a ring give 4 lenses; a cell of glass over a gold ingot gives 2 mirrors.
What it is for
Lenses: spyglass, telescope, presence sensor, item detector, optical coupler, signal writer, survey sensor. Mirrors: telescope, dish antenna, chunk sensor, inertial unit.
Why it exists
Optics open the sky and the senses of machines: seeing far, seeing what moves, aiming at the Moon.
The same text the game shows in its progress tree and on the item's sheet (I).
| Part | Recipe | Gives |
|---|---|---|
| Lens | 4 cells of glass in a ring (top, left, right, bottom) | 4 |
| Mirror | a cell of glass over a gold ingot | 2 |
Glass is sand fired in the Furnace (16 voxels in 8 s); on the Moon, regolith gives twice as much.
On the progress path
EL1Simple electronicsMain path
- This stepEL1 · Lens and mirror
- NextEL2 · Circuit board
Items of this step