I Didn't Know That
Encyclopedia
I Didn't Know That is a documentary television show
Documentary film
Documentary films constitute a broad category of nonfictional motion pictures intended to document some aspect of reality, primarily for the purposes of instruction or maintaining a historical record...

 hosted by British
United Kingdom
The United Kingdom of Great Britain and Northern IrelandIn the United Kingdom and Dependencies, other languages have been officially recognised as legitimate autochthonous languages under the European Charter for Regional or Minority Languages...

 industrial scientists Richard Ambrose and Jonny Phillips. Since 2006, 30 episodes and a "DIY Green" special have been made. A new series is not expected as the National Geographic Channel
National Geographic Channel
National Geographic Channel, also commercially abbreviated and trademarked as Nat Geo, is a subscription television channel that airs non-fiction television programs produced by the National Geographic Society. Like History and the Discovery Channel, the channel features documentaries with factual...

 has made other science progammes (including Planet Mechanics
Planet Mechanics
Planet Mechanics is a British TV program shown on the National Geographic Channel. The programme was broadcast on Sunday at 7:00 pm. The show has ended after the first series.-Background:...

and What Would Happen If...?).
In some episodes, the hosts nearly kill themselves in order to prove certain theories or to finish a dangerous experiment. In a certain episode section "Fact of Fiction", the show hosts seem to promote dowsing
Dowsing
Dowsing is a type of divination employed in attempts to locate ground water, buried metals or ores, gemstones, oil, gravesites, and many other objects and materials, as well as so-called currents of earth radiation , without the use of scientific apparatus...

 as an actual science.

Episode 24

Celebrates the 100th anniversary of the bra
Brassiere
A brassiere is an undergarment that covers, supports, and elevates the breasts. Since the late 19th century, it has replaced the corset as the most widely accepted method for supporting breasts....

. Richard and Jonny discover that 80% of women wear the wrong size bra. In particular, this is because chest diameter and maximum breast diameter rather than the volume is measured. An English engineer doctor, Tyra, has developed a bra design with crossed straps in the back. That uses the weight of one breast to lift the other, using counterbalance
Counterweight
A counterweight is an equivalent counterbalancing weight that balances a load.-Uses:A counterweight is often used in traction lifts , cranes and funfair rides...

. Standard designs constrict chest movement during breathing. One of the tools used in the development has been a projective differential shape body analyzer for .

External links

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