Uploaded January 2014 | Updated September 2026, 9 hours ago
Saline solution refers to a salt solution, which you can prepare yourself using readily available materials. The solution can be used as a disinfectant or sterile rinse. This recipe is for a salt solu
Saline solution refers to a salt solution, which you can prepare yourself using readily available materials. The solution can be used as a disinfectant or sterile rinse. This recipe is for a salt solu






![Hardtack: Worlds First original Survival Food
Hardtack (or hard tack) is a simple type of cracker or biscuit, made from flour, water, and sometimes salt. Inexpensive and long-lasting, it was and is used for sustenance in the absence of perishable foods, commonly during long sea voyages and military campaigns.[1] The name derives from the British sailor slang for food, tack. It is known by other names such as pilot bread, ships biscuit, , sea biscuit, cabin bread, sea bread (as rations for sailors) or pejoratively dog biscuits, tooth dullers, sheet iron, worm castles, or molar breakers. Hardtack: Worlds First original Survival Food](https://i.ytimg.com/vi/a_gYhGNbTW8/mqdefault.jpg)
![P-38 & Spoon: How to Open a Can
The P-38, developed in 1942,[1] is a small can opener that was issued in the canned field rations of the United States Armed Forces from World War II to the 1980s. Originally designed for and distributed in the K-ration, it was later included in the C-ration. As of 2013, its still in production and sold on a worldwide market for around .75 cents or cheaper. Super easy to use too. P-38 & Spoon: How to Open a Can](https://i.ytimg.com/vi/bEfpgRZRkag/mqdefault.jpg)


