The fastest speed : the speed of light, 299,796 miles per second, the limit speed of the universe .
Lowest Temperature : -273.15 ° C, the minimum temperature of universe, known as absolute zero, molecular stop exercising, and not only achieve closer.
The lightest metal : lithium, a small density will float on the kerosene.
Most of the metal : Osmium, the density of mercury is greater, on the mercury Lane will sink to the bottom.
Most of the gas : Radon, heavier than air eight times.
Most of the birds : great bustard, the heaviest weight of the male protagonists 16 kilograms.
The largest proportion of the liquid : mercury.
The lowest boiling point of helium : -268.9 ° C boiling point.
The highest melting point of tungsten : 33 ° C melting point.
Earth's lowest temperature : -88 ℃.
Earth's highest temperature : 63 ° C.
The longest river : the Nile, 6,671 km long.
Most of the sea : Atlantic from the Caribbean Sea depths of 7,680 meters.
The largest area of the sea : Pacific Coral Sea, reaching 4,791,000 square kilometers.
The largest island : Denmark's Greenland island, with an area of 2,175,600 square kilometers.
The Peninsula : the Arabian peninsula. Located in West Asia.
The largest Islands : South Pacific Islands, Southeast Asia, more than 12,000 islands.
The highest peaks : Everest, 8,848.13 meters above sea level.
The highest plateau : China's Qinghai-Tibet Plateau, known as the "roof of the world."
The lowest basin : China Xinjiang's Turpan Basin, the lowest point in the 154 meters below sea level.
Largest Desert : North Africa's Sahara desert, covering 10,000 square kilometers 600-800.
The largest of the Gulf : the Bay of Bengal. Located in the northeast Indian Ocean.
Longest Canal : China's Beijing-Hangzhou Grand Canal, and 1,794 kilometers long.
The largest waterfalls : Venezuela's Angel Falls in southern and head up to 17,054 meters.
The highest flying bird : buzzards up to a maximum elevation of over 9,000 meters.
First Maglev Railway : 1982 by the German construction, 31.5 km long
The fastest maglev train : Experimental up to 580 kilometers per hour from Japanese manufacturers
Most protein-containing plant foods : beans ---- 36.3 grams / 100 grams.
Calcium largest food : the experiment --- 2 grams / 100 grams.
Most of the iron content of food : black fungus ---- 185 mg / 100 grams.
Most of the phosphorus from algae food : Laver ---- 457 mg / 100 grams.
With most of vitamin A food : chicken liver --- 5 million units / 100 grams.
Vitamin B1 containing the largest food : peanut - 1.03 mg / 100 grams.
Vitamin B2-largest food : insurance program - 3.57 mg / 100 grams.
Vitamin C with the largest food : fresh dates ---- 380 mg / 100 grams.