1.As per Hindu mythology, moon had married
all the 27 daughters of King Dakshan who are
the 27 nakshatras(stars) in the sky. Moon loved
only Rohini nakshatra in spite of repeated requests
to Moon by the King. Since Moon didnot change
his nature, King Dakshan got angry and cursed
Moon, causing it to wane in size.
2. The 27 Nakshatras are-1.Ashwini 2.Bharani 3.Krittika
4.Rohini 5.Mrigashira 6.Ardra 7.Punarvasu 8.Pushya
9.Ashlesha 10.Magha 11.Poorva Phalguni 12. Uttara
Phalguni 13. Hasta 14.Chitra 15.Swati 16.Vishakha
17.Anuradha 18.Jyeshta 19.Moola 20.Purvashadha
21.Uttarashadha 22.Sharavana 23.Dhanishta
24.Shatabhisha 25.Poorva Bhadrapada 26.Uttara
3.Stephen Hawking is known for his contributions
to the fields of cosmology, general relativity and
quantum gravity especially in the context of black
holes. Black holes radiate energy known as Hawking
4.Eight planets in the solar system are-Mercury, Venus,
Earth, Mars, Jupiter, Saturn, Uranus and Neptune.
The four inner solar system planets (Mercury,Venus,
Earth and Mars) fall under the category of Terrestrial
planets.Jupiter and Saturn are gas giants(giant planets
are composed of hydrogen and helium) while Uranus
and Neptune are the ice giants (containing mainly elements
heavier than hydrogen and helium).
Pluto was demoted from its planetary system in 2006.
Dwarf planets are Pluto, Ceres, Eris, Haumea and Makemake.
2003 UB 313 resides in an orbit round the sun beyond Neptune.
It is now called Eris and is recognized as a dwarf planet.
Charon is the largest of Pluto’s moons. Pluto-Charon is our
solar system’s only known double planetary system.
5.James Watson and Francis Crick discovered the chemical
structure of DNA on 28 February 1953.
6.The United Kingdom comprises of 4 countries namely
England, Scotland,Wales and Northern Ireland.
7.The first steam locomotive made by Richard Trevithick,
first operated on 21 February 1804, 3 years after the road
locomotive he made in 1801.
8.John Greenough of Washington DC, patented a
sewing machine with a stitch forming mechanism
on 21 February 1842.
9.The Julian calendar day Thursday 4, October 1582 was
followed by the Ist day of the Gregorian calendar-Friday
15 October 1582.