Weather balloon
device · 1896 · Electric age
A balloon with instruments (Molchanov’s radiosonde, 1930).
What it is made of
- Radio — has part. A radiosonde.
Principles and materials it uses
- Archimedes’ principle — uses. A balloon filled with hydrogen or helium.
- Vulcanized rubber — is made of. The envelope is rubber or latex.
- Hydrogen — is made of. Filled with hydrogen or helium.