Real Sound Detector devices of various countries

[Arkham]

Ever wonder what a Sound Detector device is? Wonder no more!
That is a dutch version from the 1930s.


And English:

The fearsom Japanese War Tuba:

Oh, we can't forget our German friends either:

[stuman]

I need some of those German models.

[Chris21wen]

Not so portable.

WW1AcousticMirrorKilnsea(PaulGlazzard)Jan2007.jpg (51.45 KiB) Viewed 1047 times

[Platoonist]

Not so portable.

An ear trumpet for the stone deaf.

[insecttoid3]

Looks like a distant noise from just the right angle could really scare the heck out of some cows.

[BBfanboy]

Well the focal point for the gathered sound would be at the top of that steel post in front of the dish - that's where the microphone would have been. Beyond that point, the sound waves spread out again in a mirror pattern to the dish shape.

[Yaab]

Ever wonder what a Sound Detector device is? Wonder no more!

The fearsom Japanese War Tuba:

"Tell me, Akira, what are we overcompensating for?"

BTW, I saw this exact photo when I was a very small child and I thought these were very powerful artillery guns.

[Platoonist]

BTW, I saw this exact photo when I was a very small child and I thought these were very powerful artillery guns.

Funny. I saw it as a kid too and thought maybe Dr. Suess was on to something.

[Yaab]

Lung guns. 155mm Lung Tom gun.

[the1henson]

I'm learning where Dr. Seuss got some of his ideas.

[RangerJoe]

I'm learning where Dr. Seuss got some of his ideas.

Well, he was an educated man!