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Gníomhaigh do Chuntas SAOR IN AISCE!

Ní féidir le baill ach ár leabharlann scannán agus físe a shruthlú nó a íoslódáil

Lean ort ag faire SAOR IN AISCE ➞

Tógann sé níos lú ná 1 nóiméad chun Cláraigh a dhéanamh ansin is féidir leat taitneamh a bhaint as Teidil Scannáin & Teilifíse Neamhtheoranta.

00:00:00 / 00:11:00

The Seesaw and the Shoes 1945 Rochtain Neamhtheoranta In Aisce

The Seesaw and the Shoes 1945 Rochtain Neamhtheoranta In Aisce

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.

Runtime: 11 nóiméad

Cáilíocht: HD

Scaoileadh: May 05, 1945

Tír: United States of America

Teanga: English

Eochairfhocal :
Sruthlaigh na mílte scannán agus seó teilifíse saor in aisce.