Because there is very little shade, and the hot sun beats down on it all day. Dig a few inches down and you'll find it's much cooler. As hot air rises and cool air sinks.
The sand absorbs solar radiation during the day making it hot. At night it loses its energy source when the sun sets.
Deserts during the day get very hot and very dry. The lack of cloud cover only increases the temperature that hits the desert. About 40 C. Surprisingly enough, the desert gets quite cold during the night because all that warm sand loses its heat during the night due to its low heat capacity property. No heat is really contained in the air due to the lack of moisture in the air, so there is no real way to retain heat. So approximately 5 - 10 C.
the sand or dune fly.
In the shade, in burrows under the sand, in caves, under water, or anywhere it's less hot. Most desert animals are nocturnal which means they only come out at night. They burrow themselves deep in the sand where its cool during the day.
People wear a cloak in the desert because the little grains of sand can't blow in their eyes, also in hot deserts when it is in the night it is cold so the clooak will keep the person warm.
Depending on what type of desert, the atmosphere is usually dry, and sometimes windy. In a desert such as the Sahara, the weather is hot and dusty, although cooler at night. In a desert like Antarctica, the weather is extremely cold and windy.
technology that is resistant to cold, heat, winds and sand
during the day, the minute holes in sand trap the heat of the sun and make the surrounding environment hot. whereas in night there is no sun and therefore no heat so the heat escapes from the sand and make environment cold.... by bhomesh
A desert is a region where the area experiences little or no rain for a long time. It is just like the Sahara desert but instead of sand, it is ice. Instead of 40 degrees Celsius, think of negative 20 degrees Celsius. One (of the best) example would be Antartica. Also at night a desert gets very cold. SO MAKE SURE YOU WEAR A SWEATER.
There are actually two kinds of deserts - hot deserts and cold deserts, However, cold deserts is further subdivided into: Polar Deserts (eg: Antarctica) Cold Winter Deserts (eg: Gobi Desert) Cool Coastal Deserts (eg: Atacama Desert)
in the sand and burrows
Wind is the primary factor for causing ripples in the surface of desert sand but water can also be an agent during the rainy season.
Sand, sand, and desert sand