SZ/OEMU/44/3/4 - [Letter, SZ to Dr W. Payman, 6/6/41]
SZ/OEMU/44/3/4
Item
[Letter, SZ to Dr W. Payman, 6/6/41]
1941
1 leaf Letters (typescript)
Splinters -- Speed
Photography -- Ballistic
Road Research Laboratory
Perspex
Photography -- Ballistic
Road Research Laboratory
Perspex
Payman, W. recipient
Discusses the Road Research Laboratory's methods of measuring velocity [of steel balls]. Other methods using spark photography are also mentioned.
A large piece of Perspex would be sent to Payman.
A large piece of Perspex would be sent to Payman.