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Different alarm sirens police vehicles, ambulance and firetrucks

Different alarm sirens The main reason for multiple sounds, though, is a little different and frankly a lot more urgent: If all emergency vehicles used the same type, their drivers wouldn't hear each other's sirens while speeding to the same intersection ,  this is known as the wash-out effect  and would be more likely to crash into each   do the number of up/down tones mean a different emergency?  eg: 3 times means car accident, 4 times means fire, 5 times means medical, etc? A: No, the siren will sound as long as it does until it is shut off by the first responding firefighter.

Train passing through market thailand and vietnam

Maeklong Railway
The Mae Klong Railway was built in two separate stages. The Tachin Railway Ltd, founded in 1901 with a concession from the crown of Thailand to construct a line to Samut Sakhon from Bangkok built the 33 kilometer Mahachai Line. it opened in 1904 with eight stations.
The Maeklong Railway Company opened the 34 kilometer Ban Laem Line, using three steam locomotives The lines merged in 1907 to form the Maeklong Railway Ltd. It was originally opened as a goods line, transporting produce from the fishing ports of Samut Sakhon and Samut Songkram to the Bangkok markets.
The Government of Thailand purchased the now-merged company in 1926 and electrified the eastern section, turning it into an interurban tramway.

The Thai military later gained control of the railway in 1942, during World War II, and the line was brought under the control of the State Railway of Thailand in 1952 and fully merged into it by 1955. During this period of merger, the electrification was removed f…

watch under train wheel how look like

train wheel how look like
The wheels on each side of a train car are connected with a metal rod called an axle. This axle keeps the two train wheels moving together, both turning at the same speed when the train is moving . This is where the wheels' geometry comes in.

To help the wheels stay on the track their shape is usually slightly conical The instantaneous temperature between the wheel and rail have been measured up to 4,000degF. That's enough to melt the metal and definitely enough to alter the characteristics and coloration. Do you know Sweeping curves. Lots of miles.

How long does a train wheel last While many of us change our car tires every 50,000 miles or so, Metro rail wheels can travel as far as 700,000 miles before they need to be replaced.

vietnam is the beautiful place to visit

Vietnam is a friendly and safe place yes Vietnam is beautiful and a friendly and safe place to travel. With a sprinkling of common sense, your trip should be smooth and trouble free. Tourists usually complain about over-aggressive street vendors, tour operators with a bad attitude and dangerous driving.
But keep in mind, that there are no safe countries and an angelic people, so bad people are everywhere

TAGS travel,Vietnam,explor vietnam, tour, 
Ba Na Hills SunWorld

awesome video train running on snow last winter

The last photo tour before Corona, snapshots from inside America and on a trip to Greece and Japan.

The journey was great, but the movement started getting complicated at the beginning of the outbreak

amazing action mercedes running on road

amazing action mercedes running on roadwatch mercedes running Having one or more cameras is no longer a luxury, as it has become necessary and parallel to the phone, especially if it comes to fast motion photography, I did not think twice when ibought the GoPro Camera

TAGS: autovehicle, mercedes Benz,Car,black mercedes,racing car,service mercedes