Activity for tafâ€
| Type | On... | Excerpt | Status | Date |
|---|---|---|---|---|
| Answer | — |
A: What type of rope should I use for roof work? In addition to ShemSeger's excellent answer: Try hanging in the harness in a safe spot and think about how you will be rescued if you fall. Hanging in a harness might be disabilitatingly painful. Some people loose consciousness within minutes of being suspended (https://en.wikipedia.org/wiki/Suspe... (more) |
— | about 9 years ago |
| Answer | — |
A: Cheese and eggs on backpacking trips The problem with raw eggs seems to be mainly that they dry out. As long as the shell is not cracked, no bacteria can get in Some recipes from old books: Cover the shell with vaseline. Put them in a glass with a 10% solution of sodium silicate. Keep in a container with slaked lime solution. The ... (more) |
— | almost 10 years ago |
| Answer | — |
A: How safe is drinking distilled water? Distilled water is acidic (pH lower than 7), because it absorbs carbon dioxide from the air. Tap water contains all kinds of salts that act as buffers. The acidity is not dangerous, but can be measured easily with pH paper. It is true that distilled water is surprisingly corrosive and can eat throug... (more) |
— | almost 10 years ago |