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SciTubeHD
United States
Приєднався 2 гру 2008
This channel focuses on interesting and fun scientific phenomena. I also spice it up with Tesla coil builds, chemistry and physics experiments, cool hacks and how-too style videos. Thanks for visiting this channel and please consider subscribing!!!!
War of the Plates
On a recent trip to Chengdu in Sichuan province, an interesting phenomenon is occurring. Every year, there are more and more cars with green license plates. In this video, we explore this phenomena in more detail.  Here is my experience!
Переглядів: 140
Відео
Coupling transformer feedback-Works (sometimes)!
Переглядів 634Місяць тому
In this video, we test whether it is possible to use feedback from the induction heater coupling transformer instead of using a current shunt on the primary tank. The advantage is that the current is much much lower and there is much less wasted energy. There were many problems with using wire shunts including melting of the wire and failed components. One of the advantages is that at least 20 ...
Capacitor shunt replacement for copper wire shunt-Test
Переглядів 163Місяць тому
After reading the comments from the previous video ( ua-cam.com/video/wZ8wGRp2Js0/v-deo.htmlsi=3HzPNvr3r8AOG5Ao ) someone with with YT channel name Contomo (YT- youtube.com/@contomo5710?si=j8Jh8Sv2dvfnbES7 ) suggested using a small capacitor in series with the main tank instead of a wire current shunt. Thank you Contomo for this great suggestion! I made this vid as a quick test using a capacito...
Final Video-High Power Current Controlled Induction Heater
Переглядів 1,8 тис.Місяць тому
This is the final video in my series of videos on induction heater construction. In this particular build, we implement current control to prevent damage to components such as capacitors and transistors. This has been tested over several runs and seems to work really well for a much more robust build. For construction details , please refer to the following sites: teslascience.wordpress.com/sim...
Over current dem
Переглядів 204Місяць тому
We are prototyping the solid-state set up for controlling the amount of current in feedback induction heaters. The specific heater I’m talking about is shown in this link: teslascience.wordpress.com/autotuning-9kw-induction-forge-version-1-2/ Although these feedback induction heaters work very well, one of the main problems with them has been component failure due to very high current build up ...
Inductive levitation of aluminum with feedback heater setup
Переглядів 1,5 тис.2 місяці тому
This inductive heater uses the principle of secondary feedback to drive the circuit into resonance. A novel current limiter circuit is employed to improve the life of the resonant capacitors. Working in collaboration with J Kraidin we were able to improve on this heater. For construction details including our current limiter, please check the following link: teslascience.wordpress.com/simple-an...
Sunshine for Less: Affordable Hacks for Viewing Solar Phenomena 
Переглядів 1052 місяці тому
In this video, we explore simple easy ways to view the sun safely as well as photograph it and observe solar phenomena. This video explores devices such as pinhole cameras, paper plate viewers, modified cameras, as well as simple modifications to cell phone cameras to observe the sun in its full fury.
Amazing Experiments Superheated Steam
Переглядів 1,4 тис.5 місяців тому
This particular video was put together to answer some of the comments that were mentioned on my last recent video experimenting with superheated steam. In this video, the heating coil, for the steam was changed to a smaller one, allowing more efficient heating of the steam. In addition, when the experiments were performed a visible distance was maintained between the steam end of the tubing and...
Igniting matches & combusting paper using steam
Переглядів 2 тис.5 місяців тому
In this video, steam is generated at atmospheric pressure and then superheated to several hundred degrees Centigrade bypassing it through heated copper tubing. The resulting superheated steam has interesting effects on paper and matches as you will see in this video. Please don’t forget to like and subscribe if you like this video.
QCW 340V 15 ms
Переглядів 2676 місяців тому
Got some long arcs 5 ft or so with 15 ms ramp at 340V. Interestingly increasing the ramp length to 30 ms resulted in shorter fatter noisier sparks.
Tesla Coil Plasma Rectification
Переглядів 5837 місяців тому
In this experiment a high frequency high voltage diode is connected to the breakout point of a tesla coil to see if the Tesla coil will produce DC high voltage output instead of alternating current electric field .
The HV Guy’s at the Orlando Maker Faire 2023
Переглядів 1037 місяців тому
The HV Guy’s at the Orlando Maker Faire 2023
Supercharging plastic bottle to Breakdown
Переглядів 6699 місяців тому
Supercharging plastic bottle to Breakdown
How to Reuse Thermacell Pads and Save $$$
Переглядів 13 тис.10 місяців тому
How to Reuse Thermacell Pads and Save $$$
Making Insanely Reactive Piranha Acid
Переглядів 20610 місяців тому
Making Insanely Reactive Piranha Acid
Battery Recovery from Broken e-Scooter
Переглядів 59510 місяців тому
Battery Recovery from Broken e-Scooter
Super Easy High Voltage Polarity Determination using Candle???
Переглядів 54111 місяців тому
Super Easy High Voltage Polarity Determination using Candle???
Detailed evaluation, H180 HHO flame torch
Переглядів 4,7 тис.Рік тому
Detailed evaluation, H180 HHO flame torch
Practical way to Epoxy-coat a Tesla Coil
Переглядів 553Рік тому
Practical way to Epoxy-coat a Tesla Coil
Hydrogen gas from a flameless food heating pack
Переглядів 512Рік тому
Hydrogen gas from a flameless food heating pack
Inductive Scrap Metal Melter with link to build instructions
Переглядів 1,2 тис.Рік тому
Inductive Scrap Metal Melter with link to build instructions
Making a giant static electricity tower
Переглядів 846Рік тому
Making a giant static electricity tower
Sounds too good to be true I bought a miniature Tesla coil much smaller than this 1 and only lighted a tiny little neon bulb and nothing else and it cost $35 including shipping and handling and I had supply my own 5V adapter
Too smart for me:) great job!
LOL! So much better than a $40 "detector!"
This is the juicero's evil cousin
Hold this cape, good sir. Capitalism is the ULTIMATE destruction of humanity and the planet! I will do this too. p.s. please offer the link to those bulk mats.
I keep same the pad in my thermacell and add a few drops of permethrin + blue dye (from a dropper bottle) each time I use it. It seems to be as effective as the real pads.
Thanks. Great presentation.
😎👍👍
Thank you for sharing the video. Could you please repeat this experiment and put polyethylene close to the coil? Electrons in it are supposed to reach relativistic speeds slowing down time and shifting thermal radiation. So, you might see polyethylene as hot on a thermal camera while it remained at room temperature using a contact thermometer.
Cool
@@BrianDhvTinkerer Can you do this experiment? But the result may depend on the frequency and the electric field strength.
A silly question. Does resistance change with longer length? I'm thinking of using a 30 ft length in a trough of sand as a battery in a green house. Direct dc from a solar panel. Any advice would be welcome. This clip made me subscribe. Thanks.
It’s a good question. Resistance is proportional to length. At higher voltages, there are less losses for the same length and thickness of the wire. The set up I’m using is a 48 V set up to minimize wire losses. 12 V set up, lose more energy as heat for the same length and thickness of wire according to the formula V squared/R.
Only if it was made before 1940 it has u-235 and I think u-238
It’s so cool to “see” a metal as a gas like oxygen! We normally don’t think of metals as gases!
Did you measure the resonant frequency of the primary with or without the secondary? I have all the parts you have, but I am struggling to get more than a very tiny arc. Also, my primary wires get super hot. I'm using 14 AWG wires, and they still get very hot. Thank you for this content. I have watched this video several times and am determined to replicate your results. Thank you!
It's obvious you don't go camping. The hose you bought is used to service camp stoves, propane lights, etc. it can be hooked into a multi branch Tower and feed lines then hook up to all these other devices. It's is very similar to a Power Bar used with electricity.
You are right!! Haha Yes I don’t go camping a whole lot. Yes that hose is multipurpose like you say for a gas manifold. The vid is just my take on using it for something else.
Project detail accessibility is disabled?
How does the water start this reaction? And where does the water go?
Put alcohol on striker It may get wet but it will evaporate
Beautiful !!!
Thank you!!!
Can't we just hammer a small copper wire and use it instead?
Would I lower 1 liter of water at room temperature to 0 degrees faster, again in the room, with 12715+12706 cascade or without cascade? My goal is not to reach -50, but to lower the water to 0 degrees quickly?
Hi. First of all, thank youe for your informative video. I also have a plan to refill Thermacell pads but I am confused about these tefms: prallethrin, allethrin and permethrin. Are they all the same or different? And what is the active substance that Thermacell pads have? Is it prallethrin?
Thank you!
I’m happy the video was helpful!
Thanks for the video, great tips and demonstration 👍🏽 Definitely saves a lot of money. I have the MR450 and it’s worked well. I was thinking of taking a ThermaCell from US to Mexico on plane, but butane isn’t allowed onboard. I think I can get away with taking the empty canister and then refilling in Mexico.
Thank you !
Yes the loop noise can get extremely tricky. Shortest possible connections for the main feedback loop of course and running the trunk through a high permanency ferrite ring just before feedback entry on the buck controller will do the trick. Getting the buck back into loop and adding a few extra foot to the spark! Ggy made note of this I believe, it's just not shown in his schematic. We greatly appreciate your explanations and illustrations. Big salute to you and Loneocean's both!
Thanks a bunch. Yes that’s definitely true. I had long connections for the test setup which made the buckverter signal look coarse and messy 😁
Thank you.
Whats the purpose of melting iy down?
To sell or use as weights
Your craftsmanship is over the top.
bro wash your dishes
Question about the aluminum powder, is it "pure aluminum" or "aluminum oxide" powder? For this experiment I got the "pure aluminum" powder in 10-20 micron fineness, For packaging I used commercially available polypropylene non-woven bags, double bagged and stapled tight. The aluminum particles was so tiny that some of them "leaked" thru the packaging and turn the water kind of "silvery" looking At the end the heat reaction did not occurred. May be there are some ingredients missing, like sodium bicarbonate? For this experiment I wore latex gloves, and mask to avoid breathing in and touching the aluminum powder.
Plain and simple Permethrin is not safe as an inhalant. Every bit of documentation for the product is clear about that. It can cause headache, dizziness, vomiting, muscle weakness. Further, and more direct to your question, it's also really stupid to use it in this manner. Monumentally stupid. Permethrin is highly toxic to certain organisms such as insects and arachnids while being relatively mild to others such as humans. We owe the majority of our nontoxic response to permethrin to our omnivore livers which process it quite well when it is absorbed through our skins. So we just keep on going, no harm, no foul when the same exposure will outright kill animals without that versatile liver such as insects or arachnids, or cause drastic and permanent harm to those with lesser toxin handling functionality, notably fish, amphibians, or the ever beloved but obligate carnivore housecat. The most obvious mild indication of permethrin toxicity is tremors but the range of nervous system effects is broad including seizures, muscle weakness, lack of muscular control, blindness, and death. So - if you take some permethrin and concentrate it back into solid form (all of the liquids sold are suspensions and the higher concentrate ones may have flammable solvents in them) and apply heat to that to get some dispersion and breathe it, you will likely manage to inhale enough of it fast enough to get it delivered to your nervous system faster than your liver can get it out of you. The results would be interesting to a number of researchers but certainly not beneficial. My bet would be ttat you'll nake yoursrlf into a permanent dusability case. Now - I imagine you're more likely discussing 'recharging' your pad using the 1% stuff sold for treating clothing. Which is going to be far less harmful to - everything. I know that's primarily diluted with water. That's a clue for you. The higher concentrated the permethrin, the more brownish the liquid appears. The white color occurs when you mix in a lot of water. If you soak your pad in that you probably won't create a particularly harmful situation for yourself. Or bugs. That's weak as shit. Still not something I'd be deliberately breathing though. Not because I have any particular fear of the toxicity but just because you don't go around inhaling random shit because that's a good way to become the warning for future generations. Bottom line is that it is likely very bad for you. It also may not be doing anything that you want it to do. Pernethrin is NOT Allethrin. Trying to use them to replace one another just because they both have 'thrin' in the name is monumentally stupid. There are no commercial heat dispersion permethrin devices on the market for good reason. The next stupid question is, "Can you prove it?" No, and I shouldn't have to. This is dumber than pumping diesel into the trunk of a Tesla because it's a car and that's fuel for a car.
It's very interesting, you gave me some ideas
Pretty cool arcs :)
yeah... that hot glue on the pins won't do anything for 'isolation' I should know... I burnt 7 flybacks by now.
I would stay away from using Permethrin on the pads for everyday use, it can be toxic to mammals over time. Instead use pyrethrin based product.
Did this last night. Works great but found that the fill nozzle should be filed at a bit of an angle so it does not get blocked by the brass valve when inserted.
Thank you!
I connected everything and got a bulb to light up poorly. The wire keeps heating up. Is there something I did wrong?
Still relevant. Screw Thermacell for going out of their way for making these cartridges not refillable.
Thank you!
Thanks for this
You’re welcome - I’m really glad you enjoyed the video.
I heard some noise coming from inverter board while working my Panasonic micro wave... And also micro wave doesn't working properly sometimes showing H97error code..what you think sir?..
If you can't find the 38% can you just use more drops of say the 10% ?
How interesting! What was the voltage output?
Was about 5V max - it was a really interesting effect!
This was the only solution that helped me with my TV not coming on. After I resoldered the joins it's been working like a dream for the last 6 months! What a find! Thank you for the assist!
Your welcome. Happy the video helped you find a fix!!!
Hi SciTubeHD, what should i do if i make bigger diameter on copper work coil to accommodate my crucible (i use 4 inch diameter crucible) ? Should I reduce number of coil turn?
You could reduce capacitance to 3 uF
Would work fine with larger diameter coil and with 5 turns. The resonant frequency will be lower at 30-40 kHz using a 4 uF tank capacitor
@@BrianDhvTinkerer Ok, thanks dude
@@BrianDhvTinkerer CMIIW please, so if i'm running at the same resonant frequency,same number of cool turn and large diameter coil, copper coil tank capacitor must be at 3uf. But if I use 5 turn large diameter coil and running at the same tank capacitor (@ 4uf), it's still running but resonant frequency will be lower at 30-40 KHz
Yes res freq is 80kHz c small 6 turn coil c 4uF 50 kHz with 3.5 inch 5 turn coil c 4 uF The coil size will lower your resonant freq but heating should improve for larger workpieces
I searched for exactly this,
I always wanted to see what an alkali metal would do on toast???😉
im pretty sure that the single fan radiator would have very quickl;y become over whelmed and heat would start flowing backward ,to sustain it over time id think that 2 x 3 fan radiators would be required
at 11% it turns gold, its aluminium bronze
Need to redo that experiment
Why doesn't the coil heat the air on the outside etc. -? -- Is there just more concentration on the inside?
The coil generates a high intensity oscillating magnetic field that rapidly switches poles from N to S to S to N etc so only things that can conduct electricity heat up because of eddy currents. A piece of metal acts as a shorted one turn secondary coil magnetic field in them will heat up. These oscillating fields are especially good at heating iron because of hysteresis effects on the randomly aligned magnetic dipoles in the iron workpiece
This doesn't work as easy as they make it look. I use a piece of rubber, rubber band, pool patch.. Poke a small hole in it. Place the hole over the cartridge, insert the propane and push.. Good luck.. Experiment.. NO OPEN FLAME, HEATERS OR ANYTHING.. NOT RESPONSIBLE FOR ANY.. just how I do it..
Very informative thank you!!
Thank you!
It is a great project, but could you maybe explain how exactly you stripped the camera flash? Id love to do this for some ozone production..
The camera flash contains a 330 µF electrolytic capacitor. The output of the board of the flash has a diode on it. This is a small high voltage diode that can handle about 1000 V. The AC output from the circuit board of the camera flash is rectified through the single diode and charges up the electrolytic capacitor. When the vantage reaches a certain threshold of say around 350 V, the flash is ready to go. In order to access the high frequency, alternating current from the circuitboard, the electrolyte capacitor, and the diode have to be removed. The AC voltage from the board is then fed into the small CW multiplier which consists of a chain of capacitors and diodes in an array. This is used to charge up the Marx generator.
Thank you very much! i got it running from a disposable camera flash circuit...Just connected it directly to the transformer instead of removing the diode. Other camera flashes i opened, seemed too complicated for my elecronics knowledge