With rapidly changing climates, it helps to understand which foods grow best in hotter climates.
To determine the direction, or bearing, from one point to another, you need a compass as well as a map. Most compasses are marked with the four cardinal points—north, east, south, and west—but some are marked additionally with the number of degrees in a circle (360: north is 0 or 360, east is 90, south…
After a nuclear bomb is detonated, residual radioactive material is propelled into the upper atmosphere. The material then falls from the sky, showering earth with radioactive debris. Fallout from a nuclear blast has unique properties and thus, distinct requirements for sheltering against and surviving its deadly effect.
The most basic of water filters is the clean earth filter. Although not ideal for producing crystal clear clean drinking water, it does have the added advantage of filtering out some components that other filters are unable to remove. For instance, a basic clean earth filter can filter out 99% of radioactivity in water making…