Thursday, December 17, 2009

Early Hearing Aids

Sorry, my blog really has been neglected these past couple of months! I have a few weeks holiday at the moment though so hopefully I'll get round to sharing a few things with you.

I found something interesting today I thought you may like to see. These acoustic listening devices were developed for the Dutch army as part of air defence systems research between World Wars 1 and 2.

Aren't they cool?


More here.

2 comments:

Antonia said...

Wow, that's amazing and cool!

Rain Of Ideas said...

Whoa!! Cool, yes, but not very estetic! :P Imagine going around with these on!