What was the First Type of Shoe?

The first shoes were probably an early prototype for sandals, with soles made of hide, brak wood or wooven grass which were bound to the feet and ankles with strips of hide. The earliest shoe uncovered by archaeologist, a slipper, was found in Oregon, in the north-western United States and is thought to be 10,000 yeas old. In 1991, archaeologist discovered Otzi the Iceman, in the ALps. The remains preserved in the ice are thought to be about 5,000 years old. He was wearing shoes with bearskin soles, deerskin insteps and uppers made of tanned chamois or cowhide and bark. They were stuffed with the grass for warmth.<br /> <br /> The ancient Minoans also wore footwear: a fresco at Knossos on Crete (c. 1500 BCE) shows two athletes wearing what look like shoes and shin guards.<br /> <br /> Several pairs of sandals with leather or papyrus soles with two leather straps were found in the tomb of the Ancient Egyptian Tutankhamun (d.c. 1323 BCE). It is reasonable to suppose that less prosperous Egyptians also wore sandals for protection.<center><img alt="Image of The First Type of Shoe" src="http://lh5.googleusercontent.com/-FLWtJpW_aaQ/UxRmmqTi4zI/AAAAAAAAlXk/0-2i66x35lw/s600/ancient-egypt-shoes.jpg" title="The First Type of Shoe" /></center><p style="border-bottom-color: rgb(0, 0, 100); border-bottom-style: solid; border-width: 0px 0px 4px; color: black; font-size: 18px; font-style: bold; line-height: 1; margin: 0px 0px 20px; padding: 10px 0px 4px; vertical-align: baseline;"><b style="font-size:18px;color:green;text-shadow:1px 1px 1px #000;">Animals Have Shoes</b></p>An animal's foot has no need for shoes. It has been specially designed with a tough leathery sole to protect it.

General Knowledge What was the First Type of Shoe?

The first shoes were probably an early prototype for sandals, with soles made of hide, brak wood or wooven grass which were bound to the feet and ankles with strips of hide. The earliest shoe uncovered by archaeologist, a slipper, was found in Oregon…

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Does an Ostrich Really Bury Its Head in the Sand?

The ostrich is rather a strange bird, and there are many interesting and peculiar things about it, but it does not hide its head in the sand! What may have given people this idea is that when an ostrich is frightened, it will sometimes drop to the ground, stretch out its neck, and lie still and watch intently. But when the danger comes closer, the ostrich does just what other animald do—it takes off and runs. When the ostrich is exhausted and cannot run any further, or if it must defend its nest, it kicks with its powerful legs.<br /> <center><img alt="Image of Ostrich Really Bury Its Head in the Sand" src="http://lh4.googleusercontent.com/-Hd2CEBvxikQ/U0Al_1KYWNI/AAAAAAAAxEk/srsh7OZwdjI/s600/971530_10152767536568327_27635798_n.jpg" title="Ostrich Really Bury Its Head in the Sand" /></center><p style="border-bottom-color: rgb(0, 0, 100); border-bottom-style: solid; border-width: 0px 0px 4px; color: black; font-size: 18px; font-style: bold; line-height: 1; margin: 0px 0px 20px; padding: 10px 0px 4px; vertical-align: baseline;"><b style="font-size:18px;color:green;text-shadow:1px 1px 1px #000;">Flightless Bird</b></p>Although the ostrich cannot fly, it makes up for this by its ability to run at high speed. It runs faster than any other bird in the world, and can travel as fast as 50 miles an hour, maintaining this speed for at least half a mile.

The Animal Kingdom Does an Ostrich Really Bury Its Head in the Sand?

The ostrich is rather a strange bird, and there are many interesting and peculiar things about it, but it does not hide its head in the sand! What may have given people this idea is that when an ostrich is frightened, it will sometimes drop to the gr…

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Where was the Great City of the Ancient World?

Babylon was the great city of the ancient world. It was the capital kingdom of Babylonian and of Babylonian empires. Babylon stood on the banks of Euphrates River near the modern city of Al Hillah in Iraq. This location helped Babylon become important trading post. The city also served as the religious centre of Babylonia; the word 'Babylon', means <i>gate if the god</i>.<br /> <br /> Records first mention Babylon about 2200 BCE. King Sumuabum, the first important Babylonian ruler, founded a dynasty in 1894 BCE. The best-known king od that dynasty was Hammurabi, who ruled from 1792 to 1750 BCE and won fame for developing a wise and fair code of law.<center><img alt="Image of Hanging Gardens of Babylon stood on the banks of Euphrates River near the modern city of Al Hillah in Iraq." src="http://lh5.googleusercontent.com/-Ewj7XCiu8X4/Uxaquc25sAI/AAAAAAAAAss/upw6Yoyf4lQ/s600/Hanging_Gardens_of_Babylon.jpg" title="Hanging Gardens of Babylon stood on the banks of Euphrates River near the modern city of Al Hillah in Iraq." /></center><p style="border-bottom-color: rgb(0, 0, 100); border-bottom-style: solid; border-width: 0px 0px 4px; color: black; font-size: 18px; font-style: bold; line-height: 1; margin: 0px 0px 20px; padding: 10px 0px 4px; vertical-align: baseline;"><b style="font-size:18px;color:green;text-shadow:1px 1px 1px #000;">New Technology Has Been Found</b></p>The period from 5000 to 500 BCE was an age of crucial new technologies—the wheel, metal tools and weapons were developed at this time. Coins were first used, and writing and mathematics developed. Babylonians also began to study the stars.

The History and Events Where was the Great City of the Ancient World?

Babylon was the great city of the ancient world. It was the capital kingdom of Babylonian and of Babylonian empires. Babylon stood on the banks of Euphrates River near the modern city of Al Hillah in Iraq. This location helped Babylon become importan…

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How Long is a Martian Day?

The Martian day, or the time it takes Mars to rotate once on it's axis, is about a half an hour longer than an Earth day. Its year, or the time it takes to revolve once around the Sun, is about two Earth year long.<br /> <br /> Mars is a relatively small planet, about half the diameter of the Earth and about one-tenth of the Earth's mass. Because of the relative movements of the Earth and Mars around the Sun, Mars appears to move backwards in the sky for a short time when the two planets are closest.<center><img alt="Image of How Long is a Martian Day?" src="http://lh5.googleusercontent.com/-ITVglHrcKFE/U0J1H367_1I/AAAAAAABPHw/xUt_uITiq8I/s600/Alignment-450+%281%29.jpg" title="How Long is a Martian Day?" /></center><p style="border-bottom-color: rgb(0, 0, 100); border-bottom-style: solid; border-width: 0px 0px 4px; color: black; font-size: 18px; font-style: bold; line-height: 1; margin: 0px 0px 20px; padding: 10px 0px 4px; vertical-align: baseline;"><b style="font-size:18px;color:green;text-shadow:1px 1px 1px #000;">The Red Planet</b></p>Mars is named after the Roman god of war because it appears fiery red in the Earth's night sky. The surface of Mars is covered by a stony desert that contains lots of iron oxide, giving it its rusty-red appearance.

Space How Long is a Martian Day?

The Martian day, or the time it takes Mars to rotate once on it's axis, is about a half an hour longer than an Earth day. Its year, or the time it takes to revolve once around the Sun, is about two Earth year long. Mars is a relatively small planet, …

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What is a Geostationary Satellite?

There are two types of weather satellites for long and short-term observations, which together give a complete picture of Earth's weather system. GOES or geostationary operational, environmental satellites remain in 36,000 km over the equator, giving detailed, constant and accurate information about the movement of storms, hurricanes, thunderstorms, and other severe weather patterns as quickly as possible, with the help of radar and other ground systems. POES, or polar, orbiting environmental satellites orbit much closer too the Earth's surface and offer visible infrared photos that measure moisture and temperature, tracking weather patterns and climate.<br /> <center><img alt="Image of GOES or geostationary operational, environmental satellites" src="http://lh4.googleusercontent.com/-8GPIY5qfJ0g/UvqGCMw1XxI/AAAAAAACFeE/w18am0mnTNU/s600/14%2B-%2B1" title="GOES or geostationary operational, environmental satellites" /></center>When the information from GOES and POES is combined it takes only six hours to provide a complete picture of weather conditions across the entire surface of the Earth.<p style="border-bottom-color: rgb(0, 0, 100); border-bottom-style: solid; border-width: 0px 0px 4px; color: black; font-size: 18px; font-style: bold; line-height: 1; margin: 0px 0px 20px; padding: 10px 0px 4px; vertical-align: baseline;"><b style="font-size:18px;color:#00be98;text-shadow:1px 1px 1px #000;">Satellites for Navigation</b></p>Both sets of satellites also carry search and rescue transmission instruments so that pilots and mariners in distress can relay messages through them for help.

Space Technology What is a Geostationary Satellite?

There are two types of weather satellites for long and short-term observations, which together give a complete picture of Earth's weather system. GOES or geostationary operational, environmental satellites remain in 36,000 km over the equator, giving…

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What's Inside a Tooth?

<div style="float: right; margin: 10px 10px 10px 0;"><img alt="Image of The Best Tooth Whitening" src="http://lh5.googleusercontent.com/-B8X_HKntRAE/Ud30xdooFKI/AAAAAAAAAGQ/z0jGfiZcKSM/s300/dental_implants-gilbert-az.jpg" title="Anatomy of Tooth and Implants" /></div>A tooth consists of four kinds of tissues. They are (1) pulp (2) dentine (3) enamel and (4) cementum.<br /> <br /> Pulp is the innermost layer of a tooth. It consists of connective tissue, blood vessels and nerves. The blood vessels nourish the tooth. The nerves transmit sensations of pain to the brain.<br /> <br /> Dentine is a hard, yellow substance that surrounds the pulp. It makes up most of a tooth. Dentine is harder than bone. It consists mainly of mineral salts and water but also has some living cells.<br /> <br /> Enamel overlays the dentine in the crown of the tooth. It forms the outermost covering of the crown. Enamel is the hardest tissue in the body. It enables a tooth to withstand the pressure placed on it during chewing.<br /> <br /> Cementum overlays the dentine in the root of the tooth. In most cases, the cementum and enamel meet where the root ends and the crown begins. As the surface of tooth wears away, the tooth grows father out of its socket, exposing the root.<br /> <p style="border-bottom-color: rgb(0, 0, 100); border-bottom-style: solid; border-width: 0px 0px 4px; color: black; font-size: 18px; font-style: bold; line-height: 1; margin: 0px 0px 20px; padding: 10px 0px 4px; vertical-align: baseline;"><b style="font-size:18px;color:green;text-shadow:1px 1px 1px #000;">Invisible Teeth Braces</b></p><div style="float: right; margin: 10px 10px 10px 0;"><img alt="Image of Invisible Braces can fix your teeth mal-alignment within 6 months only." src="http://lh3.googleusercontent.com/-ML01xLZt9Tw/T8ot7UCnQ3I/AAAAAAAAABI/bVGfwiNjRBw/s280/576823_10151700668010137_91805225136_24136949_1965252712_n.jpg" title="Invisible Braces can fix your teeth mal-alignment within 6 months only." /></div>Sometimes teeth grow crookedly or become overcrowded in the month. This can be put right by wearing teeth braces. Braces consist of metal or clear ceramic brackets that are banded on the front surface of each tooth connected by wires.

The Human Body What's Inside a Tooth?

A tooth consists of four kinds of tissues. They are (1) pulp (2) dentine (3) enamel and (4) cementum. Pulp is the innermost layer of a tooth. It consists of connective tissue, blood vessels and nerves. The blood vessels nourish the tooth. The nerves …

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