pneumatic-tube
| Topic | Replies | Views | Activity | |
|---|---|---|---|---|
| FoodTube—Fast Food via Pneumatic Tube |
|
0 | 173 | 21 February 2023 |
| Sending Radioactive Isotopes Underground in Pneumatic Tubes |
|
0 | 236 | 6 December 2022 |
| Pneumatic Tubes for People—New York City's First Subway |
|
3 | 255 | 21 July 2022 |