|
|
|
|
| |
Riser
- In foundry work, specifically in sand casting a riser is a hole in a sand mold which allows air to escape from the mold cavity. Molten metal flows down the sprue, and up the riser(s).
- In parachuting, a riser is one of several straps that attach the parachutist 's harness to the shroud lines. Parachutes can be steered by pulling on one or more of the risers, to alter the shape of the inflated canopy.
|
|
|
|
|
|
|
