I’ve lent my convoy c8, small sun zy-t08 and my tk75 to the volunteer firefighters in my village, we have some harsh weather conditions.
Cyclone warning class 3 there. That means everythings closed and you can’t get out normally. Used LiteXpress Liberty 113 (headlamp) with a K2 Luxeon stock led to move a 10ft diameter antenna to safety. Took some time and the headlamp was much needed!
Just before bed, thought I should check the gas in the snowblower as we were expecting 8-12” of heav wet snow here…
rather than annoy the nearby neighbors w a spread of outdoor lights at 11:30pm I trekked outside to the light from my favorite little SF L2M shorty. Had plenty of lumens. Annoyed something in the woodpile (nearest to where I store the fuel cans outside) just as I left.
We had about 8” before it turned to heavy rain and the snow so wet that the blower was not as useful as I hoped.
Got to fix that darn pitiful little light on the blower too…got an IS light to wire and mount there.
used my olight a3t to look for a ping pong ball in a supersonic shock tube at work today…
what is a supersonic shock tube?
Some people spend their whole lives trying to answer that question. 
those people don’t have Bort’s workload :bigsmile:
If I understand correctly, a supersonic shock tube is meant to direct shocks at components or devices in order to test them to see how they will perform when transitioning from subsonic to supersonic speeds. Presumably in a vehicle such as an aircraft.
today i used the new Defiant Zoomie(with an 18650) in the backyard to check on a Geocache i have there near the fence.
ours is a tube with a diameter of 10 cm and a length of 2+2m. Between the two 2m sections we have some membranes that bursts by enough pressure. We fill one of the 2m sections with pressurized air, and at around 6 bars of pressure the membranes burst, sending out a supersonic shock wave (@480-510 m/s) through the second 2m part of the tube.
This is part of an European union science project for studies and measurement of dynamic pressure. (not shooting ping pong balls per se, but looking at the response from different pressure sensors and other equipment/settings related to the data collection)
I used a few lights to light up this ice line. One on a tripod and three duct-taped to trees. A great way to climb in the darker winter hours after work 
That is one orsm picture Mike C. Looks like good fun and a good lights has to make it more funner.
Thanks. It’s always fun to combine hobbies
Well, that certainly puts my tater tot gun to shame. It tops out at ~100m/s. Mine is only powered by a bike pump though, and is basically just a human-powered paintball gun. (building it was a fun day at the hardware store)
Used F13 with diffuser to make it a lantern and RRT01 to break camp.
Used my DQG AAA working on a car, then later used it again walking through a couple of acres at night time.
Used my Zebralight SC52 to illuminate the inside of my clothes dryer's exhaust vent so I could thoroughly clean out the lint that accumulated over the past year. I do this once a year to prevent a possible fire..
Took an after dark bike ride, using two lights on my handlebar. I tried out my new Conway S2 with an XP-G2 (warm tint) alongside my headlight, a Serfas True 250 with an XP-G (cool tint). I really like the warm tint of the S2 when riding, and it had a good balance of throw and spill light. When I cycled off the S2, the headlight’s tint looked ghastly. I never thought it was before, but I think I’m used to neutral and warm tint flashlights right now.