Immortalized in the movie rain man, dustin hoffman's character performs mind-boggling feats of mathematical calculations yet cannot perform the simplest of tasks such as determining how much change he would receive when buying a candy bar. this is known as

Savant Syndrome is a medical condition which can be able to do mind-boggling mathematical calculations but cannot perform the simple tasks.

Explanation:

Savant Syndrome is a mental disability which is in excess of average generally related to memory. It can be rapid calculation, artistic skills, music skills or map making. It is present in a one special human. Savant syndrome was recognized by Dr.J.Langdon.

Savant skills are found in these areas memory, art, arithmetic, musical, or spatial skills. Most common skill is calculation the day of the week of date or recall memories from any date.

uses : -

1.aneroid barometers primarily measure whether pressure is rising or falling.

2.aneroid barometers are often used for reading pressure in homes and recreational boats.  

3.other uses may include barographs in meteorology and altimeters in modern aircraft.  

4.this type of barometer can announce whether a high or low pressure system is coming or whether it is becoming more intense.  

5.there are different types of aneroid barometers, such as the altimeter, which measures altitude, or distance above sea level.  

6.another example is a barograph, which is a modified aneroid barometer that provides constant readings of atmospheric pressure on graph paper.  

7.when used in this capacity, the aneroid barometer can store a week's worth of data.

android diameter a device for measuring atmospheric pressure , often specially calibrated for use as an altimeter ,consisting of a box or chamber partially exhaused of air, having an elastic top and a pointer to indicate the degree of compression of the top caused by the external air

refer to the attachment for the characteristics : -