Video encyclopedia

Flashback calendar

The Spirit rover is launched

Spirit, also known as MER-A or MER-2, is a robotic rover on Mars, active from 2004 to 2010. It was one of two rovers of NASA's ongoing Mars Exploration Rover Mission. The rover completed its planned 90-sol mission.

Millennium Bridge in London is opened and closed again

New steel suspension pedestrian bridge for over the Thames river in London, England, behaved unexpectedly. As the first few thousand people crossed it, it developed an unexpected and potentially dangerous lateral wobble. The design did not consider the forces associated with human walking. The bridge had to be closed and modified.

Mylar trademark is registered

New extra strong plastic was created by DuPont. Chemically, it is a stretched biaxially-oriented polyethylene terephthalate and therefore it is often called BoPET. Its development was the evolution of another famous material, the Dacron. Mylar is used for manufacturing of tapes, capacitor dielectrics, food wrap, balloons and high-quality drumheads.

Anniversaries of the (in)famous

born 1972

Sundar Pichai

died 2019

Girish Karnad

died 1934

Lev Vygotsky