When and why do we celebrate Engineer's Day?

September 15 is celebrated every year in India as Engineer's Day to commemorate the birthday of the legendary engineer Sir M. Visvesvaraya (1861-1962). Internationally recognised for his genius in harnessing water resources, he was responsible for successful design and construction of several river dams, bridges and implementing irrigation and drinking water schemes all over India.

He served as the dewan of Mysore State and was considered to be the architect of the all-round development of Karnataka. Among his most successful projects are the design and construction of the K.R. Sagar dam and its adjoining Brindavan Gardens, turn-around of the Bhadravati Iron and Steel Works, setting up of the Mysore Sandalwood Oil Factory and the founding of the Bank of Mysore.

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What is daltonism?

Daltonism is another term for colour blindness, named after John Dalton, a scientist. There are specific cells on the retina for forming real inverted images after refraction from the eye's lens. Cone-shaped cells respond to colours. Colour-blind people lack such cells which enable them to distinguish between colours, mostly red and green. Such people have normal vision. This is a congenital defect which is inherited.

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When did Malaysia get its independence from the British?

Malaysia got its independence from the British on August 31, 1957 in a very peaceful manner through talks. Additionally, Malaysian independence was realised by three people of different cultures and religions. On August 31, 1957, Malaya's first Prime Minister Allahyarham Tunku Abdul Rahman proudly declared the independence of Malaya (now Malaysia) by shouting out 'Merdeka' seven times at the Merdeka Stadium.

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How do chocolates elevate the mood of a person?

Chocolate contains small quantities of anandamide, an endogenous cannabinoid found in the brain. Sceptics claim one would need to consume several pounds of chocolate to gain any very noticeable psychoactive effect. And eat a lot more to get fully stoned! It's worth noting that N-oleolethanolamine and N-linoleoylethanolamine, two structural cousins of anandamide present in chocolate, both inhibit the metabolism of anandamide.

It has been speculated that they promote and prolong the mood of a person induced by anandamide.

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How is the mass of heavenly bodies measured?

The mass of a heavenly body can be measured by knowing the orbital period (time it takes to complete one orbit around the other body), the distance between two bodies and gravitational constant. The orbital time is inversely proportionate to the square root of the sum of the masses of two bodies and directly proportion distance raised to power three by two.
 

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What is telepresence?

Telepresence is the next-gen videoconferencing technology, which provides superior images. The demand for telepresence solutions has grown, with companies seeing it as an alternative to send executives for meetings. It also reduces a company's carbon footprint by cutting down frequent flying. Setting up a telepresence suite can be very expensive, though.


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