3 ms·
Levers and the inclined plane .. especially those wound in a spiral about a core.
by defrost 5mo ago
Levers and the inclined plane .. especially those wound in a spiral about a core.
- tocs3 5mo agoWe recently got an elevator for my mother, so pulleys.
- defrost 5mo agoJust for interest .. that doesn't always follow, a neighbour recently installed a screw lift elevator from garage sub level to their living floor level - no pulleys! (But good use of an inclined plane wound about a column.)