Cycling Equipment · Public discussion

Emergency Discharge Tube; When Conventional Lights Aren't Bright Enough

Started by Bret Cahill · · Last activity · 12 posts · 735 views

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Cycling Equipment
Published
10 December 2006
Last activity
13 December 2006
Original author
Bret Cahill
Posts
12
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  1. Instant sunshine.

    A few seconds before the dangerous intersection you'ld start charging
    the multifarad capacitor. If everything goes OK then you simply save
    the charge for the next intersection.

    On the other hand, if a motorist appears to not see you, then you set
    off the strobe.

    Relatively low power consumption can save lives.

    Bret Cahill

  2. "Bret Cahill" <[email hidden]> wrote in news:1165711719.299327.87020@
    79g2000cws.googlegroups.com:

    Quoted message said:

    Instant sunshine.

    A few seconds before the dangerous intersection you'ld start charging
    the multifarad capacitor. If everything goes OK then you simply save
    the charge for the next intersection.

    On the other hand, if a motorist appears to not see you, then you set
    off the strobe.

    Relatively low power consumption can save lives.

    Bret Cahill

    Unfortunately, it's not legal in most states. Especially since emergency
    vehicles use strobes to trigger the traffic signals.

    Cheers,
    David

  3. Per Bret Cahill:

    Quoted message said:

    On the other hand, if a motorist appears to not see you, then you set
    off the strobe.

    Seems predicated on the assumption that the motorist didn't see me in the first
    place and would alter their behavior once they did.
    --
    PeteCresswell

  4. Quoted message said:
    Quoted message said:

    Instant sunshine.

    Quoted message said:

    A few seconds before the dangerous intersection you'ld start charging
    the multifarad capacitor.  If everything goes OK then you simply save
    the charge for the next intersection.

    Quoted message said:

    On the other hand, if a motorist appears to not see you, then you set
    off the strobe.

    Quoted message said:

    Relatively low power consumption can save lives.

    Quoted message said:

    Unfortunately, it's not legal in most states. Especially since emergency
    vehicles use strobes to trigger the traffic signals.

    Cyclists can get that changed where I live.

    In any other place they can explain that to you later.

    At least you will still be alive.

    Bret Cahill

  5. On 9 Dec 2006 16:48:39 -0800, "Bret Cahill" <[email hidden]>

    Quoted message said:

    Instant sunshine.

    A few seconds before the dangerous intersection you'ld start charging
    the multifarad capacitor. If everything goes OK then you simply save
    the charge for the next intersection.

    On the other hand, if a motorist appears to not see you, then you set
    off the strobe.

    Relatively low power consumption can save lives.

    Why the multifarad capacitor? There are many strobe lights that can
    run from 6 to 12 volts. Or even 3 volts. A 1+ farad capacitor good
    for any reasonable discharge rate will weigh more than batteries and
    cost more too.

    Quoted message said:

    Bret Cahill

  6. Bret Cahill said:

    Instant sunshine.

    A few seconds before the dangerous intersection you'ld start charging
    the multifarad capacitor. If everything goes OK then you simply save
    the charge for the next intersection.

    On the other hand, if a motorist appears to not see you, then you set
    off the strobe.

    Relatively low power consumption can save lives.

    Bret Cahill

    Two words: target fixation 😉
    --
    Phil

  7. Bret Cahill said:

    In any other place they can explain that to you later.

    At least you will still be alive.

    It might not be all that hard to justify. Simply mount a
    cheap flash equipped camera (Ok, Big Flash, cheap camera)
    and say the photos are meant to simplify the inquest.

    8-)

    bob prohaska

  8. On 9 Dec 2006 16:48:39 -0800, "Bret Cahill" <[email hidden]> may

    have said:

    Instant sunshine.

    A few seconds before the dangerous intersection you'ld start charging
    the multifarad capacitor. If everything goes OK then you simply save
    the charge for the next intersection.

    On the other hand, if a motorist appears to not see you, then you set
    off the strobe.

    Relatively low power consumption can save lives.

    Anything that startles a driver can cause lapse of judgemental
    ability; do you really want to do something that might *cause* a
    collision? The place to employ a bright strobe is far enough back
    from, and long enough before your entry into the intersection that no
    one there is going to be flipped into freeze or panic mode by it.

    Also, beware of the hazards of playing with large capacitors. They
    bite.

    --
    My email address is antispammed; pull WEEDS if replying via e-mail.
    Typoes are not a bug, they're a feature.
    Words processed in a facility that contains nuts.

  9. Quoted message said:
    Quoted message said:

    At least you will still be alive.

    Quoted message said:

    It might not be all that hard to justify. Simply mount a
    cheap flash equipped camera (Ok, Big Flash, cheap camera)
    and say the photos are meant to simplify the inquest.

    Quoted message said:

    8-)

    Quoted message said:

    bob prohaska

    I'm a photographer now! At this time of year I do at least 6 mi/day at
    night which is more dangerous than 100 miles during daylight.

    Bret Cahill

  10. "bob prohaska's usenet account" <[email hidden]> wrote in message
    news:[email hidden]...

    Quoted message said:
    Bret Cahill said:

    In any other place they can explain that to you later.

    At least you will still be alive.

    It might not be all that hard to justify. Simply mount a
    cheap flash equipped camera (Ok, Big Flash, cheap camera)
    and say the photos are meant to simplify the inquest.

    8-)

    bob prohaska

    Better tried by 12 than carried by 6....

    I briefly tried my hand at photography many years ago. I had a huge
    Graflex strobe with a 510V battery which weighed about 10 Lbs. by itself.
    It could cause permanent retinal damage up close. ;-)

    Chas.

  11. "Werehatrack" <[email hidden]> wrote in message
    news:[email hidden]...

    Quoted message said:

    On 9 Dec 2006 16:48:39 -0800, "Bret Cahill" <[email hidden]> may

    have said:

    Instant sunshine.

    A few seconds before the dangerous intersection you'ld start charging
    the multifarad capacitor. If everything goes OK then you simply save
    the charge for the next intersection.

    On the other hand, if a motorist appears to not see you, then you set
    off the strobe.

    Relatively low power consumption can save lives.

    Anything that startles a driver can cause lapse of judgemental
    ability; do you really want to do something that might *cause* a
    collision? The place to employ a bright strobe is far enough back
    from, and long enough before your entry into the intersection that no
    one there is going to be flipped into freeze or panic mode by it.

    Also, beware of the hazards of playing with large capacitors. They
    bite.

    Years ago I had a Graflex Stroboflash portable strobe. The power unit had
    6 2" x 6" cans (capacitors) and a 510V battery that weighed about 10 Lbs.
    by itself. I got bit by the beast through a faulty cord one time. It set
    me on my butt!

    The flash was great though, it could ruin your night vision for several
    days! ;-)

    Chas.

  12. "Bret Cahill" <[email hidden]> wrote in message
    news:[email hidden]...

    Quoted message said:

    Anything that startles a driver can cause lapse of judgemental
    ability;

    Moreover you could [censored] them off. Hit & run is really easy at night.

    Quoted message said:

    do you really want to do something that might *cause* a
    collision? The place to employ a bright strobe is far enough back
    from, and long enough before your entry into the intersection that no
    one there is going to be flipped into freeze or panic mode by it.

    Mostly they are still asleep at 6:15 am but your point should be taken
    into consideration no matter what.

    Quoted message said:

    Also, beware of the hazards of playing with large capacitors. They
    bite.

    Are the old flash bulbs still available?

    Maybe a magnesium fire would work.

    Bret Cahill

    Flash Bang - Shock and Awe in the morning!

    Chas.

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