Which is the light sensitive region of the human eye?
There are over 100 million light-sensitive cells in the retina. The retina is the light-sensitive region of the eye.
2016
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Disaster in the face of dying Dead Sea
The Dead Sea is shrinking at the rate of over a metre per year. This is mainly because the Jordan River, which drains into the sea, has been diverted. The environmentalists predict that it is a disaster that could devastate the region.
Bastion of Bhutan’s Road Network – Traffic Police
There is no traffic light in Bhutan. The traffic in Bhutan is controlled by the traffic police. The only traffic light was removed by the King many years ago.
Sherlock Holmes’ mysterious 221
221B Baker Street happens to be the house of Sherlock Holmes. Incidentally, the number 221 has several significances. 221 = 13×17 is a product of two prime numbers. It is called a semi-prime number. Some other examples are 6(2×3), 10(2×5), 14(2×7), 21(3×7), 22(2×11), 26(2×13), 33(3×11), 35(5×7), 39(3×13), 49(7×7), 51(3×17), 55(5×11), 57(3×19), 62(2×31), 65(5×13), 69(3×23), 77(7×11),…
Witness two equinoxes every year
The term ‘equinox’ is derived from the Latin aequus (equal) and nox (night). On this day, the night and day are of the same length. This is because the tilt of the earth’s axis is neither near nor away from the sun, and the centre of the sun and the centre of the earth are…
Arundhati Roy’s struggle during teenage years
Arundhati Roy was brought up by her mother in Kerala. She came alone to Delhi when she was 16 years old. She stayed with friends in a slum in Feroz Shah Kotla and sometimes sold empty beer bottles. Later she attended the Delhi School of Architecture.