Technology

Only one flying example of the aircraft was built.

More than 1.9 billion tons of steel are produced annually.

The author of the first website was Tim Berners-Lee, who published it in December 1990.

The first building constructed primarily of steel was the Home Insurance Building in Chicago, USA, completed in 1885. 

Its construction lasted from 1994 to 2006.

Mriya was flown on 21st December 1988.

Naphtha, one of the lighter (0.78-0.81 g/cm3) fractions of petroleum, is almost as old as medicine.

The World Health Organization considers kerosene a polluting fuel and recommends that "governments and medical practitioners immediately stop promoting its use in the household."

The wingspan of the An-225 is 88.4 meters and the length of the fuselage is 84 meters. The aircraft’s height is 10.10 meters.

An-225 Mriya is the second-largest aircraft constructed to date.