Making a fire

A process that occurs when a substance encounters too much heat (fueled with oxygen). Use speed, not force.


Cooking methods

The simples method of cooking is to make fire and hold the food (stuck on a stick) over it. The second simplest method is to layer burning coals with dirt on top, then the food, then another layer of dirt, then build the fire on top.

Boiling

The food is mixed with water and boiled until it cooks.

Steaming

Water is instead boiled below and the food cooks in the steam coming off it. Steamers are devices designed for this.

Water Filtration

Water filtration is a way of preparing water to make it fit for drinking. If one is afraid their water is dirty, it should always be boiled first. A secondary way of filtration is to make a charcoal filter - most effectively with activated charcoal for safe drinking.


Thermos

    _____                    
   /_____\* --- cover        
  |_\__*/_| --- cap          
 / //   \\ \                 
| | |~~~| | |*--- case       
| | |   | |*| --- glass walls
| | |   | | |  + silvered    
| | |   | | |    surfaces    
| | |   |*| | --- vacuum     
| | |_*_| | | --- liquid     
| |_______| |                
|___________|                

Flask used for keeping liquid at the same temperature for long periods of time. Its design has two bottles placed one within another with a vacuum inbetween. The inner walls are made of glass (nowadays stainless steel) due to its poor conductivity. It was invented in 1892 by Sir James Dewar for scienticic use. Casually, it is used for keeping beverages such as soup or tea warm in cold temperatures, but also has scientific uses, such as holding dangerously high-temperature liquid.


Tea

    s   
   S    
    s   
c\~~~~~/
  \___/ 

Plants that can be used for making tea: