Fire alarm systems and equipment
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A couple of years ago, the water level of Lake Argyle was significantly lowered for work. The eerie-looking remnants of tree stumps dotting the new shoreline were well underwater before that. Obviously, fish that had been using these stumps as guideposts had to find new haunts... compelling fishermen to change their tactics as well.
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Copyrighted Stephen L. Frazier. All Rights Reserved. Duplication, printing, publication, or any other use of these images without written permission is prohibited.
Kristalldetektor (Kernstück eines Radios der Anfangszeit), hergestellt von meinem Urgrossvater in den 1920er Jahren. Der Kristalldetektor ist eine frühe Form einer Schotky-Diode und diente zur Demodulation des empfangenen Signals. (Eine Aufsicht ist hier: www.flickr.com/gp/165543166@N06/H8j298)
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Crystal detector (core of a radio of the early days), made by my great-grandfather in the 1920s. The crystal detector is an early form of a Schotky diode and was used to demodulate the received signal. (A top view is here: www.flickr.com/gp/165543166@N06/H8j298)
Kristalldetektor (Kernstück eines Radios der Anfangszeit), hergestellt von meinem Urgrossvater in den 1920er Jahren. Der namensgebende Kristall (Bleiglanz) ist eingefasst in der linken der beiden gerändelten Scheiben sichtbar und wird über ein Federblech mit einer Spitze kontaktiert. Der Kristalldetektor ist eine frühe Form einer Schotky-Diode und diente zur Demodulation des empfangenen Signals. (Eine Seitenansicht findet sich hier: flic.kr/p/2ic9A5Y)
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Crystal detector (core of a radio of the early days), made by my great-grandfather in the 1920s. The name-giving crystal (galena) is embedded in the left of the two knurled discs and is contacted by a spring plate with a tip. The crystal detector is an early form of a Schotky diode and was used to demodulate the received signal. (A side view is here: flic.kr/p/2ic9A5Y)
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Macro Mondays - Safety, February 1, 2021
- This photo shows the inside of a fire detectors.
- HMM to all flickr friends.
- Thank you for all of you who have spent the time to see my photos.
- Thanks to everyone who favors and have commented this photo.
- Press "L" or "Z" for a large view - an absolute must to fully enjoy this picture!
- For more, please visit my Albums
Auf der Brücke der «Cap San Diego». Die «Cap San Diego» ist ein nach wie vor seetüchtiges Museumsschiff (Baujahr 1961) und hat seinen Liegeplatz an der Überseebrücke des Hamburger Hafens.
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At the bridge of the "Cap San Diego". The "Cap San Diego" is a still seaworthy museum ship (built in 1961) and is moored at the Overseas Bridge (in German: "Überseebrücke") at the Port of Hamburg.
1st August 2019:
Summer came back and I went out for a lovely walk. I was heading for a particular place, but didn't get there, lost my orientation. Will have to try and find where I wanted to go another time.
As I'd 'got lost' I just ambled around taking photos, chatting to home owners who said "Bonjour" and enjoying the good weather.
Saw this and liked it, but, as it was a bit breezy, it kept moving round. Out of the 3 photos I managed, I thought this was the most fun.
They tell you which direction and at what speed the wind is coming from - I think!
Better viewed large and thank you for your favourites. :O)
Metro. Lisboa
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Returning to Eagle Mills is 122 empties on LSI Train 3-Yard Hill behind a pair of AC4400CW's passing one of the deactivated signals and the detector at Forestville Road.
Locomotives: CEFX 1004, CEFX 1012
10-15-20
Marquette, MI
Pulling at Gladstone, CN 5404 passes the ancient detector at Gladstone. From what I can find, there's only one other existing example of this style of detector, which would read out the axles for the rear-end crew.
J767 is seen passing the Sparta defect detector just south of Glencoe on a pleasant Spring morning on the LCL subdivision.
The Waynesburg Southern branch of the Monongahela Railway, opened in 1968, did not have stations or lineside structures normally associated with lines of earlier vintages. It did have block limits set up at what would come to be known as control points along the way. Here a Conrail caboose on a northbound loaded train passes the dragging equipment detector at COT, in Pine Bank, Pennsylvania.
"Spring, spring, spring it's you"
- these are the words of a some song.
Maybe hope and joy will come with her.
CN 5770 & CN 8927 lead a 512-axle CN 377 past the hotbox and dragging equipment detectors located at MP 29.2 of the Kingston Sub.
Not long after 592 cleared, I heard the 286 detector go off and saw the Pennsylvanian come into view. Not even planned, it had specially painted AMTK 46, the 50th Anniversary unit up front. This was my first time seeing it, totally unplanned. 07T at CP CONPIT at New Florence, PA this evening with the stacks of the Conemaugh Generating Station in the background.
A wary Green Jay considers the danger of my presence near a feeding station at Sabal Palm Sanctuary outside Brownsville, Texas.
Neat number.
After a Burlington Northern train tried to stuff a bad load through the bridge over the Yellowstone and didn't succeed, high/wide detectors were erected on either side with plenty of time for a train crew to react.
2-12-06
Metro. Lisboa.
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A early arriving manifest train slides rumbles down the hill East of Raymond, Iowa Caught via scanner while driving to Chicago in 2014. I backtracked about 5 miles after hearing this trip off the defect detector East of Jesup, IA and caught it at Ordway Rd I posted a shot taken a few frames after this one back in 2014 but this one stands on its own also
Lisboa. Portugal
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Just playing around with the dashboard of the 2006 Infiniti G35 Coupe. Another of my Escher (or Droste) type photo manipulations. [see the first in the set for more info].
©2008 David C. Pearson, M.D.
The face of a hammerhead is a piece of incredible, primitive, engineering. Perfect for scanning for living creatures buried beneath the sand.
Who knows what that thing is really picking up?
This is a quick little build that I mostly completed in an evening, with some tweaks later as Bricklink orders arrived.
Fun fact: I only have two of those skulls, and one is on the ground in the cave. I had to take three photos and merge them to get the skull faces on all the legs. More will be here from Bricklink eventually...
Lots of Canadian Pacific trains travel the Norfolk Southern Chicago Line everyday, but this isn't one of them. NS train 205 (Mechanicville, NY to Chicago, IL, 47th St. Yard hotshot trailers/containers) has some variety today rolling through downtown Brimfield, Indiana on NS' ex-LS&MS/NYC/PC/CR Chicago Line. The NYC era tri-light signals are still in service here. The locomotives have just hit the MP 386.3 defect detector.