Night mode
Актывуйце БЯСПЛАТНЫ рахунак!

Наша бібліятэка фільмаў і відэа можа транслявацца альбо загружацца толькі ўдзельнікамі

Працягвайце глядзець БЯСПЛАТНА ➞

Рэгістрацыя займае менш за 1 хвіліну, і вы зможаце атрымліваць асалоду ад фільмаў і тэлефільмаў без абмежаванняў.

00:00:00 / 00:11:00

The Seesaw and the Shoes 1945 Бясплатны неабмежаваны доступ

The Seesaw and the Shoes 1945 Бясплатны неабмежаваны доступ

This short shows how two objects led to important discoveries. Children playing with a seesaw inspire French physician Rene Laennec to invent the stethoscope, and a pair of shoes made of caoutchouc lead Charles Goodyear to discover the process for vulcanizing rubber.

Час выканання: 11 хвілін

Якасць: HD

Адпусціце: May 05, 1945

Краіна: United States of America

Мова: English

Ключавое слова :
Перадавайце тысячы фільмаў і тэлешоў бясплатна.
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