![Randolph Zerr](/img/default-banner.jpg)
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Randolph Zerr
United States
Registrace 30. 12. 2007
Nerdy science experiments and gadgets and how to DIY
Spectacular meteor scatter FM broadcast band
The wide open FM broadcast band in rural Goldfield, Nevada lights up with short distance signals from less than 300 miles west and 300-500 miles north simultaneously. No explaination for the dynamics on this other than multiple meteors at the same time. Building up to the Perseids Meteor Shower peak Aug 12. Turn on CC for details. Airspy R2 SDR with 6 element log-yagi 18 ft. aimed east. 5700 ft elevation.
zhlédnutí: 625
Video
July 14, 2021 FM band sporadic E to Cape Cod, Massachusetts received in Goldfield, Nevada
zhlédnutí 131Před rokem
Turn on CC for details. Using an Airspy R2 with SDR Console and a 6 element yagi. 3 stations confirmed from Cape Cod, Massachusetts. Special thanks to Bryce Foster who is local to these stations and was also recording and provided his files to match and compare. The video swaps back and forth between mine and his recordings synchronized and features: 97.3 WJFD New Bedford, MA 50kw 2450 miles / ...
Epic sporadic E Nevada to North Carolina FM broadcast receptions
zhlédnutí 170Před rokem
Early morning propagation May 31, 2023 rare double hop sporadic E from Nevada to North Carolina and Tennessee. Times displayed are Pacific zone. Some competition from Chihuahua, Mexico stations from a second first hop. Including 250 watt translator with little interference perfect timing for enough of a local ad and partial ID "Real Country 550AM and 92.9". Longest distance is 95.1 WRNS Kinston...
Ryobi 18 volt P780 super bright modified LED lantern
zhlédnutí 2,8KPřed 8 lety
Converted 130 lumen blue tinted cool white LED lantern to fully adjustable 0-700 lumen neutral white. If you love the Ryobi 18 volt lithium battery powered tools and wish the P780 shop light was brighter and a more natural color, here's how I modified mine. This was a difficult project from the beginning. The unit is hard to open, requires a Torx security driver with a narrow shank. There is ve...
Remembering our beloved Sally Johnson. Turkey Creek northwest Florida kayak trip Sept 2012
zhlédnutí 1,1KPřed 8 lety
Maiden voyage of the "Sallyak" custom built from a yard sale fishing kayak returned to recreational paddling use for our friend Sally Johnson. Shown here tested without the detachable rudder which proved to be a mistake :-D We miss Sally, lost to the evil cancer May 2021. Sally was such a fun and lively lady, one in a million. Her and her super cool husband Adam, my good friends. Always thinkin...
campfire forge
zhlédnutí 2KPřed 8 lety
For those times when you need to be the camp blacksmith or just want to play with fire. 12 volt air mattress inflator with a section of steel tubing, PWM unit controls voltage to the motor to adjust air flow. Could be of use if needed to forge steel parts or tools, Melt and burn steel, brass, aluminum, zinc, copper
dirty TV2 analog signal from south
zhlédnutí 634Před 9 lety
An occasional signal heard via sporadic E. Seems to be coming from Central America. The sound is somewhat like the effects in the 50's movie "Them!" czcams.com/video/q2PLls02gOU/video.html
thermoelectric generator using cheap TEC modules
zhlédnutí 91KPřed 9 lety
4 cheap Chinese TEC modules assembled in series using wood fire and water cooling generates up to about 8 watts.
model steam tractor powered by Sterno and turning 12V motor as a generator
zhlédnutí 1,8KPřed 9 lety
Wilesco model steam engine. Demonstrated in this video is a simple no mess method to use Sterno as fuel which is cheaper and cleaner than the solid Esbit fuel. Also demonstrated is running the engine on compressed air from a 12 volt tire inflator and using wood as fuel with a modified pressure cooker as a secondary boiler and powering a 12 volt motor as a generator.
Hydrogen gas generated by overcharging a battery
zhlédnutí 4,3KPřed 9 lety
Demonstration of "hydrogen bark" so named as the sound resembles a dog's bark from the explosive combustion of hydrogen and oxygen gas in an open test tube. 2 amperes at 15 volts fills the tube in less than a minute.
DIY Homemade high power LED lantern using Ryobi 18v lithium battery
zhlédnutí 11KPřed 9 lety
A Ryobi handheld vacuum converted into an adjustable lantern. Brighter than any commercially manufactured LED lantern. The 130 lumen Ryobi P780 "shop light" that is currently on the market is inadequate and emits a rather unattractive blue wavelength above 5000K. Anyone using the One power tools might notice this. I've found the Ryobi One tool set is useful for camping especially the chainsaw u...
nerd science - burning zinc metal
zhlédnutí 19KPřed 9 lety
Common zinc metal and zinc casting alloys will burn brilliant blue using forced air on a wood charcoal fire.
camping hot tub - DIY homemade campfire water heater wood fired
zhlédnutí 231KPřed 9 lety
Some details on the construction and demonstration of a completely green powered portable homemade camping hot tub setup.
Black & Decker vs. Ryobi 18v battery chainsaw with solar power
zhlédnutí 87KPřed 10 lety
Black & Decker CCS818 8" NiCd chainsaw vs.Ryobi P545 10" lithium. both 18 volt. I wanted a light, compact, battery powered chainsaw for light firewood cutting for remote camping that could be charged with my portable solar electric generator. Black & Decker is more compact but Ryobi wins overall with better battery, charger, & operation. Ryobi also has other tools, many useful for camping that ...
science experiment burning methane swamp gas
zhlédnutí 39KPřed 10 lety
science experiment burning methane swamp gas
what to do with 20 lbs of excess dry ice
zhlédnutí 1,4KPřed 10 lety
what to do with 20 lbs of excess dry ice
Nerdy science - Collecting and igniting methane swamp gas
zhlédnutí 11KPřed 10 lety
Nerdy science - Collecting and igniting methane swamp gas
prospecting gold with homemade solar powered trommel
zhlédnutí 15KPřed 11 lety
prospecting gold with homemade solar powered trommel
ideas for Gold Hog mats in a sluice without riffles or expanded metal
zhlédnutí 23KPřed 11 lety
ideas for Gold Hog mats in a sluice without riffles or expanded metal
kayak modification and polyethylene welding.wmv
zhlédnutí 594KPřed 12 lety
kayak modification and polyethylene welding.wmv
science project - build a strong 12 volt electromagnet
zhlédnutí 190KPřed 12 lety
science project - build a strong 12 volt electromagnet
intense 2 meter Es with hi-VHF E skip 6-18-10
zhlédnutí 1,9KPřed 14 lety
intense 2 meter Es with hi-VHF E skip 6-18-10
Central America TV & FM E skip 7-25-09
zhlédnutí 8KPřed 14 lety
Central America TV & FM E skip 7-25-09
FM and 2 meter sporadic E DX Jul 29 09
zhlédnutí 6KPřed 15 lety
FM and 2 meter sporadic E DX Jul 29 09
55.250 MHz warbling video carrier from the Dominican Republic
zhlédnutí 813Před 15 lety
55.250 MHz warbling video carrier from the Dominican Republic
Just what I need had my roof done and they left alot of nails and shrapnel behind. So I bought a few magnetic sweepers and neodymium fishing magnets they done a pretty good job but every few days I have to keep sweeping to pickup more nails and shrapnel
Channel 2 is YNFA-304 from Managua, Nicaragua. Less than two years later and they would be taken over by Mexico's Albavision and Daniel Ortega's government of the country.
I’m so impressed! I never would have thought that kayak was worth repairing but you made it look good! Awesome job!
Fantastic catches! Wow.
Seeing as there are LNG terminals in Louisiana, it might make sense to have projects to capture swamp gas for liquefaction. Some farms have swine manure under a tarp to collect it, maybe a similar system would work in a way that when the pressure reaches a certain level a pump would collect it in container bottles to be processed.
Warning: don't do this at home! The least loss is when you poke hole in the tupperware, but when you turn your home into a swamp you will get into deep trouble.
Hey there! If you still make videos, Id like to see how you wired up the momentary switch and how it looks like without the pvc pipe for reference. Tysm, trying to make one myself
Can it fill balloon to fly can you make video about it?
This video inspired me so much. Taking old and broken things and making them into something new and functional.
excuse me, how does the device with which you smoothed the plastic, please, thank you?
wow looks like too long for a meteor.. Aircraft reflection maybe?
Hi Randolph, I'm a producer at RAW TV, we're the producers of Gold Rush and all of its spin off shows. Whats the best way of contacting you?
The 1 time it's actually swamp gas 😂
How long can it stay energized?
You know some of the poor people from other countries are forced to make up their own electric products you should check out some of their videos and their hacks because they are really smart people.😊
And this is how the lore of the wisps began. Merida sees them in Brave.
Le Feu follet 😉
How would one try to recreate that soil recipe?
pure white silica sand is the native soil.Commercially you could do a silica sand and peat mix
@@RLZerr Any other cp’s identified growing there such as Utrics?
Before i watch this video i got a goofy ahh enegrizer ad from sweden i am from sweden Anyways
Thanks basically trying to remove metal and nails from the burn pit cheap as possible
Thats amazing Randy! Nice catches --Hal
Do you still have the sailing KAYAK kf4hrm
I do but it's not being used. Kayak under a tarp i nthe Nevada desert. Sail and rigging in a buddies shed in Boise, ID
i heard about this w 0ne those text adventure games by doug adams. i thought it was collecting gas , but its w the water, in game u fill a bladder w it and it blows a hole in a brick wall, you o through wall to a throne room, scare a bear to get a mirror and take a brick to damn up a lava pit
Post more similar videos & your ideas. Great
Great catches, and an MUF to the top of the band! I had a feeling WFLZ and WPCV would be among them, blowtorches that they are. With an SDR, I was hoping to dig out a 2Es catch by now. Hasn't happened yet. Of course, I have many many more locals at this end of the path.
This is more complicated and larger than I need, but as a DIYer myself, you did an awesome job on this.
That's like a triple hop E-skip!
Love DX.
Dimension one spa error message
Please try this with a far bigger capture system.
Fm radio stations going to digital
Rod name
Natural gas of the wild
what stops the PE from sticking to the shoe of the welder?
When the temperature and contact time is correct it doesn't stick or burn. It's like anything else. Practice makes perfect.
1:13 that signal be like: *disintegrated*
Tell me please how did you connect each cell? I'm going to build something similar on TEC 1- 12710 cell's. Could You please help?
see if you had like a gassifiere or rocket stove you could produce much more heat with much less wood. enclose the fire instead of having it out in the open. but ya do some reserch on gassifiers. mr.tessolonian has a lot of good vids on that and many more. check him out
Good job
What exactly did you use or do to allow the mast to rotate? Did you just put a smaller PVC pipe inside of another one?
. Yes, the 1" schedule 40 PVC mast fits perfectly inside the 1 1/4" stem mount.
@@RLZerr Thank you for the information.
Wow! This is amazing! Now I want to make one!
2
In Hungary, analog TV disappeared within ten years! Those who want to watch TV without a subscription fee need an indoor unit and a room antenna. FM radio still works.Remaining analog DAB is still in its infancy!
Can we not collect whatever is causing the gas and refine it into a fuel?
Cool
I remember watching this video when it came out well over a decade ago. When I first saw this, the stations he caught were listed as annotations that popped up throughout the video. But now that those annotations have been gone for well over 8 years, I thought I would list some of the stations he caught in this video for convenience sake: 2 meter: - N1DPM @ FN32 - KT1Q @ FN32 - KA3KDL @ FN10 - WB2EZG @ FN20 - K3SZY @ FN10 - W2RJO @ FN23 FM-DX: - CITF-FM 107.5 (now Rouge FM) / Quebec City, CAN / ~1400 mi. from FWB - WNYC-FM 93.9 / New York, NY / 5.2kW / ~1004 mi. - WFXF-FM 95.1 (now WAIO-FM) / Rochester, NY / 50kW / ~1008 mi. - WJPA-FM 95.3 / Washington, PA / 2.85kW / ~765 mi. - WRMM-FM 101.3 / Rochester, NY / 27kW / ~1009 mi. - WFLK-FM 101.7 (now on 99.3 as a classic hits station) / Seneca Falls, NY / 5kW / ~1022 mi. - WBEB-FM 101.1 / Philadelphia, PA / 14kW / ~923 mi. - WDUQ-FM 90.5 (now WESA-FM) / Pittsburgh, PA / 25kW / ~785 mi. - WJWV-FM 90.9 / Ft. Gaines, GA / VP: 81kW; HP: 20.5kW / tropo @ ~125 mi.
I am quite fond of leeboards. Although more complicated, I think small leeboards would be rather fun and challenging.
Holy shit... 😮😯😲🤭😳
Could this be used as fuel?
Also responsible for every UFO.