WAVES AND PARTICLESLIGHTHOUSETRANSMISSION OF LIGHTLIGHT SOURCESSHADOWSFIND OUT MORELight makes the world seem bright and colourful to our eyes. Light is a type of electromagnetic radiation that…
(Encyclopedia) neutron star, extremely small, extremely dense star, with as much as double the sun's mass but only a few miles in radius, in the final stage of stellar evolution. Astronomers Baade…
Food shortages and price increases spark violence and debate
by Mark Hughes
Food shortages have been reported worldwide. Related Links Year of the Potato Underreported Humanitarian…
Source: The National Aeronautics and Space Administration (NASA) The diameter of our closest star, the Sun, is 1,392,000 kilometers. The Sun is thought to be 4.6 billion years old. The Sun is a…
PUZZLE FOR THE EYEREFRACTION IN HEAT HAZEMIRAGEFIND OUT MORELight rays usually travel in straight lines, but when they pass from one material to another they can be forced to bend (change…
The ancient Egyptians thought onions kept evil spirits away. When they took an oath (made a promise), they placed one hand on an onion. The custom of throwing rice at weddings goes back to the…
For thousands of years, farmers have improved their crops by crossbreeding plants that have good traits. They take pollen from one plant and add it to the flowers of another plant to produce a…
Continent: Southeastern AsiaClimate: Tropical. Monsoon season runs from May to November School: Only about 45% of Cambodian kids finish elementary school. The figure is much lower for children who…
