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  2. Detonator (railway) - Wikipedia

    en.wikipedia.org/wiki/Detonator_(railway)

    A railway detonator, (torpedo in North America) or fog signal is a coin-sized device that is used as a loud warning signal to train drivers. It is placed on the top of the rail, usually secured with two lead straps, one on each side. When the wheel of the train passes over, it explodes, emitting a loud bang.

  3. French railway signalling - Wikipedia

    en.wikipedia.org/wiki/French_railway_signalling

    a 'block free' signal (green), meaning that the next block is clear or, in the case of a distant signal, that the next signal is also green; Warning signals or speed limits (yellow) requiring the driver to slow the train and especially to be able to stop before the next stop signal; Stop signals (red) require the train to stop.

  4. North American railroad signaling - Wikipedia

    en.wikipedia.org/wiki/North_American_railroad...

    The RTC can also issue special permissions to trains via radio. In order to pass signals set at stop (Rule 564), reverse direction within a block (Rule 577) or enter the main line at a manual switch not equipped with a signal (Rule 568), the train crew must copy the RTC's instructions and repeat them back correctly before being allowed to proceed.

  5. Early warning system - Wikipedia

    en.wikipedia.org/wiki/Early_warning_system

    An early warning system is a warning system that can be implemented as a chain of information communication systems and comprises sensors, event detection and decision subsystems for early identification of hazards. They work together to forecast and signal disturbances that adversely affect the stability of the physical world, providing time ...

  6. I Took Long-Term Antibiotics for a Year—Here's What I'm ...

    www.aol.com/took-long-term-antibiotics-heres...

    Antibiotics can be helpful for those fighting off an infection. But they are commonly prescribed to people with unexplained acne or flare ups on the skin—I would know, because I was one of them.

  7. Doxycycline - Wikipedia

    en.wikipedia.org/wiki/Doxycycline

    Generic 100 mg doxycycline capsules A package of generic doxycycline. In addition to the general indications for all members of the tetracycline antibiotics group, doxycycline is frequently used to treat Lyme disease, chronic prostatitis, sinusitis, pelvic inflammatory disease, [13] [14] severe acne, rosacea, [15] [16] [17] and rickettsial infections. [18]

  8. Train Protection & Warning System - Wikipedia

    en.wikipedia.org/wiki/Train_Protection_&_Warning...

    Standard TPWS installations can only bring a train to a stop prior to passing a red signal, at 74 miles per hour (119 km/h). In 2001, it was observed that roughly one-third of the UK railway allows for a speed above 75 miles per hour (121 km/h). Further this assumes the train's brakes is capable of providing a brake force of 12%g.

  9. ‘Doctors Dismissed My Chronic Cough As Allergies. It Was ...

    www.aol.com/lifestyle/doctors-dismissed-chronic...

    The packages contained basic items that people could use during treatment—for example, a pre-tied turban for people who lose their hair and can’t tie one themselves, ginger candies for nausea ...

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