lights

227 photos and 3 illustrations tagged lights, from 25 members of Flickr Commons.

When were these photos & illustrations taken?

32
1881
2026

 

Where were these photos & illustrations tagged?

29% of these photos & illustrations are geotagged.

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A selection of photos & illustrations tagged lights:

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The last upload was 4 August.

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Double diaphragm, double diaphragm

from National Library of Ireland on The Commons

  • 12 older comments, and then…
  • National Library of Ireland on The Commons said:
    We will award (at our own expense), half a dozen (virtual) sticky buns to the first person who tells us what exactly the Type ZW1 does and what is the application that the Commissioners of Irish Lights may have put it to?
  • Suck Diesel said:
    “AI Overview
    The images depict a double diaphragm submarine emitter, labeled as Type ZW1, with a sound output of 250 watts. Figure 31 shows a diagram of the emitter, highlighting its internal components marked A and B. Figure 32 is a photograph of the emitter itself.”
  • Suck Diesel said:
    Wild guess, is this attached to a ship to identify itself to a submarine that it caries medical or other non hostile supplies?
  • National Library of Ireland on The Commons said:
    Suck Diesel Plausible, but I would need some evidence.
  • Suck Diesel said:
    Of course, ‘submarine’ just means underwater, not necessarily a U-boat.
    I don’t think that Irish Lights has anything to do with U-boats so this device is used to emit a sound underwater, but purpose unknown

The gossoons on the pier

from National Library of Ireland on The Commons

Early mobile phones but no Social Media

from National Library of Ireland on The Commons