what if Obma has born in 1951?

…he would attented a blacks – only kindergarten. until 1954, black
children in some states in the united states of america  could not
attend the same schools as white children. that year, the supreme
court finally banned seperate schools for black children

…he would have had to give up his seat and stand on the public bus
everytime a white passenger needed one.in 1955 in montgomery tennessee
, a black women called ROSA PARKS refused to give up her seat.

…he would have felt like a second class citizen of united states
of america. in1963 , a black priest called martin luther king ,
jr.made his famous “i have a dream” speach . king had lead 3 lakh
protesters to lincoln memrial in washington dc

world war 2 aircrafts

when world war 2 began in 1939, air forces had already replaced most
of their fabric skinned biplanes with all metal, stressed skin
monoplanes. aircraft played a far greater role in military operations
during world war 2 than ever before . the wide range of  aircraft
duties , and the introduction of radar tracking and guidance systems,
put pressure on designers to improve aircraft performance . the main
areas of improvement were speed,range and engine power. bombers became
larger and more powerful-converting from two to four engines- in order
to carry a heavier bomb load: the US B-17 Flying fortress could carry
up to 6.2 tonnes of bombs over a distance of 3,200 km. some aircrafts
increased their range by using drop tanks.fighters needed speed and
manoeuvrability : the Hawker Tempest shown had a maximum speed of
700kph and was one of the few allied aircraft capable of catching the
German jet-powered V1″flying bomb”.

get surprised

• - a newborn kangaroo is only about an inch in the length.
• -carnivorous animals won,t eat animals that  have been struck by lightening.
• -gorrlias don,t drink water. they get all the water they need from the
• plants they eat.
• -certain species of frogs can be frozen solid, then thawed-after which
• they conitinue to live.
• -unlike all other insects flies have five eyes.
• -rats can,t throw up.
• -girrafes have no vocal cors.
• -a coakroach can survive without it,s head for nine days . on the
• tenth day it dies of hunger.

the first bird

the archaeopteryx had feathers and is considered the first bird in the
world. it was a really a weird creature though -a mix and match
combination of dinasour had wings clwas a bony ail and even teath
!!!!! it was probably not very good at flying so it climbed trees and
take off from high branches.