- Видео 251
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RimstarOrg
Добавлен 17 фев 2009
An addiction to science, electronics, making stuff, understanding how things work, and passing it all on to you...
My name is Steve and I'm a lifelong maker and amateur scientist and see no end in sight.
Videos are currently being made only every few months as time permits.
My preference for questions is in the comments to the relevant video.
And for anyone who's wondering, the name is meant to refer to our star, which is not on the rim of our galaxy but it's fun to pretend it is. By naming it this way I'm basically saying that any subject matter under the sun (or galaxy!) is fair game for this channel and its companion website, rimstar.org.
My name is Steve and I'm a lifelong maker and amateur scientist and see no end in sight.
Videos are currently being made only every few months as time permits.
My preference for questions is in the comments to the relevant video.
And for anyone who's wondering, the name is meant to refer to our star, which is not on the rim of our galaxy but it's fun to pretend it is. By naming it this way I'm basically saying that any subject matter under the sun (or galaxy!) is fair game for this channel and its companion website, rimstar.org.
Transmitting Sound with Side Light Fiber Optics and my Laser Communicator
Here's how I transmit sound using a side light fiber optic cable and my DIY laser communicator. The side light fiber obtic cable is also known as a side glow and side emitting fiber optic cable.
There was no paid promotion or sponsorship for this video. I have no affiliation with pishop.ca.
Subscribe so that you don't miss new videos as they come out ruclips.net/user/rimstarorg
Go to the main channel page here ruclips.net/user/rimstarorg
See also:
My Laser Communicator playlist
ruclips.net/p/PLFsZmHTZL-zmVo7Csiex_9co1uzWg9LTI
Directing Light with Water and Plastic - Science Short
ruclips.net/video/tugoaguh0aY/видео.html
How to Make Pinhole Camera with Poster Board
ruclips.net/video/DfPrfpYTbcY/виде...
There was no paid promotion or sponsorship for this video. I have no affiliation with pishop.ca.
Subscribe so that you don't miss new videos as they come out ruclips.net/user/rimstarorg
Go to the main channel page here ruclips.net/user/rimstarorg
See also:
My Laser Communicator playlist
ruclips.net/p/PLFsZmHTZL-zmVo7Csiex_9co1uzWg9LTI
Directing Light with Water and Plastic - Science Short
ruclips.net/video/tugoaguh0aY/видео.html
How to Make Pinhole Camera with Poster Board
ruclips.net/video/DfPrfpYTbcY/виде...
Просмотров: 4 349
Видео
Izzy's Two-Eyed Robot Object Recognition and Fixation
Просмотров 4,6 тыс.Год назад
Izzy not only has two eyes like a human but does object recognition with both eyes, picks an object and fixates on it, following it around the room. It uses the Yolo 3 neural network running on the darknet neural network engine. The brains are an NVIDIA Jetson TX1 with an arduino mega 2560 for motor control and two YoLuke webcams for the cameras. This video details how it's all done. Subscribe ...
Preview - Izzy's Two-Eyed Robot Object Recognition
Просмотров 3,2 тыс.Год назад
Izzy not only has two eyes like a human but does object recognition with both eyes, picks an object and fixates on it, following it around the room. This is a preview of the more upcoming more detailed video about how it works. Subscribe so that you don't miss new videos as they come out ruclips.net/user/rimstarorg Go to the main channel page here ruclips.net/user/rimstarorg If you want 3D prin...
How to Desolder with a Desoldering Pump/Solder Sucker
Просмотров 110 тыс.2 года назад
How to desolder/remove solder using a desoldering pump or solder sucker. Not only shows how to desolder but also how it work and what's inside a desoldering pump. I do it mostly for salvaging electronic parts for circuit bords but it's also useful when fixing errors when soldering. Subscribe so that you don't miss new videos as they come out ruclips.net/user/rimstarorg Go to the main channel pa...
Raspberry Pi to Arduino Serial USB Communication
Просмотров 42 тыс.3 года назад
Here's how to communicate between a Raspberry Pi and an Arduino using serial USB communication. Subscribe so that you don't miss new videos as they come out ruclips.net/user/rimstarorg Go to the main channel page here ruclips.net/user/rimstarorg Link to hackaday.io project: hackaday.io/project/171456-diy-hobby-servos-quadruped-robot Link to the source code shown in this video: rimstar.org/scien...
Making Servo Robot Eyes for YoLuke Webcams - Izzy
Просмотров 37 тыс.4 года назад
How to make a pair of servo motor controlled robot eyes for YoLuke webcams, resulting in a robot that sees! These are for my robot, Izzy. Subscribe so that you don't miss new videos as they come out ruclips.net/user/rimstarorg Go to the main channel page here ruclips.net/user/rimstarorg If you want 3D print these eyes then you can. They're available on Thingiverse here: www.thingiverse.com/thin...
Convert ATX Computer Power Supply for USB
Просмотров 159 тыс.5 лет назад
Here's how to convert a power supply from a computer to one you can use yourself, including with USB ports. These power supplies are called ATX power supplies because they follow the ATX standard. This video was made possible in part by these Patreon supporters: Mark Peltier Piotr Bomba ruclips.net/user/przysuchainfo Dimitrij Greco ruclips.net/user/Taran72 Yojimbo Printable Science Robert Büche...
How to Make a Zoetrope
Просмотров 158 тыс.5 лет назад
Here's how to make a zoetrope, a simple to make, fun animation demonstration. The link to the webpage where you can download the zoetrope-horse.pdf, zoetrope-blank.pdf and zoetrope-disk.pdf is: rimstar.org/science_electronics_projects/how-to-make-a-zoetrope.htm I no longer have the online store. Instead I give the animations and guide away for free at the same above webpage.
Making a Servo Controlled Eyeball for Pi Camera 2
Просмотров 30 тыс.5 лет назад
Here's how I designed and made a servo controlled eyeball for a Pi Camera 2. I use a Raspberry Pi and a Pololu Micro Maestro motor controller to control it. This is for playing around with neural networks and robotics. This video was made possible in part by these Patreon supporters: Mark Peltier Piotr Bomba ruclips.net/user/przysuchainfo Dimitrij Greco ruclips.net/user/Taran72 Yojimbo Printabl...
How to Make Hydrogen Generator Electrolyzer for Balloon
Просмотров 40 тыс.6 лет назад
How to make a Hydrogen generator electrolyzer for a balloon, including what is an electrolyzer and how an electrolyzer works. Note, using stacked plates as I did makes only a minimal contribution so you may as well go with one plate for each side. More on that analysis is on my webpage here: rimstar.org/science_electronics_projects/hydrogen-generator-electrolyzer-for-balloon-stacked-plates.htm ...
How to Make Pinhole Camera with Poster Board
Просмотров 18 тыс.6 лет назад
Here's a cheap and easy way to make a pinhole camera using a single sheet of poster board. This is great for if you need to make a few or lots of them cheaply, great for a kids activity. This video was made possible in part by these Patreon supporters: Mark Peltier Piotr Bomba ruclips.net/user/przysuchainfo Dimitrij Greco ruclips.net/user/Taran72 Jonathan Rieke Printable Science Robert Büchel S...
How to Make a Coil Gun using a Fly Swatter
Просмотров 60 тыс.6 лет назад
Here's how to make a coil gun, in this case using an electric fly swatter/bug zapper for the power supply. This video was made possible in part by these Patreon supporters: Mark Peltier Piotr Bomba ruclips.net/user/przysuchainfo Dimitrij Greco ruclips.net/user/Taran72 Jonathan Rieke Printable Science Robert Büchel For this coil gun's schematic and other updates, go to: rimstar.org/science_elect...
3D Printed Helping Hands Magnetic Holder
Просмотров 7 тыс.6 лет назад
This is a 3D printed helping hands magnetic holder I designed for attaching to a vice for holding things while working on them (e.g. soldering wires to something). This video was made possible in part by these Patreon supporters: Mark Peltier Piotr Bomba ruclips.net/user/przysuchainfo Dimitrij Greco ruclips.net/user/Taran72 Jonathan Rieke Printable Science Robert Büchel Support RimstarOrg on Pa...
How a Wimshurst Machine Works
Просмотров 212 тыс.6 лет назад
How a Wimshurst machine works, a complete explanation of how this very popular electrostatic generator works. Includes electrostatic, inductive charging, the neutralizer bars, collectors, Leyden jars and the spark gap. This video was made possible in part by these Patreon supporters: Dimitrij Greco ruclips.net/user/Taran72 Jonathan Rieke Printable Science Robert Büchel Support RimstarOrg on Pat...
My CR-10 3D Printer - Creality 3D Printer
Просмотров 8 тыс.6 лет назад
My CR-10 3D Printer - Creality 3D Printer
Servo Motor With Raspberry Pi and Maestro board
Просмотров 16 тыс.6 лет назад
Servo Motor With Raspberry Pi and Maestro board
Pin Headers - soldering, cutting, male, female, etc.
Просмотров 256 тыс.6 лет назад
Pin Headers - soldering, cutting, male, female, etc.
Making BB-8 (v2) - Improving the Head - Part 7
Просмотров 31 тыс.6 лет назад
Making BB-8 (v2) - Improving the Head - Part 7
What is Electricity: AC v DC, Electrostatic, Lightning, Arcs, Sparks
Просмотров 76 тыс.6 лет назад
What is Electricity: AC v DC, Electrostatic, Lightning, Arcs, Sparks
Potato chip circuit/macrochip with 555 timer circuit
Просмотров 14 тыс.6 лет назад
Potato chip circuit/macrochip with 555 timer circuit
Making BB-8 (v2) - Adding HC-05 Bluetooth RC - Part 6
Просмотров 18 тыс.7 лет назад
Making BB-8 (v2) - Adding HC-05 Bluetooth RC - Part 6
LC Circuit: Selecting Coil and Capacitor
Просмотров 79 тыс.7 лет назад
LC Circuit: Selecting Coil and Capacitor
What is Ground? Earth Ground/Earthing
Просмотров 3,2 млн7 лет назад
What is Ground? Earth Ground/Earthing
Making BB-8 (v2) - Painting/Details/LEDs - Part 5
Просмотров 54 тыс.7 лет назад
Making BB-8 (v2) - Painting/Details/LEDs - Part 5
How to Design a Coil for Specific Inductance
Просмотров 290 тыс.7 лет назад
How to Design a Coil for Specific Inductance
Smoke Precipitator - Measuring Voltage & Demos
Просмотров 52 тыс.7 лет назад
Smoke Precipitator - Measuring Voltage & Demos
easy fir most to achive I thought I would see a rochelke salt crystal grown, crystal then sandwiched between two pieces of silver foil with wires atached, now difficult part, which way does it deflect most? largest deflection direction is determined by some neans. now crystal is connected to a beam armature so max deflection is achieved, end of beam then linked to a transducer membrane (usually aluminium foil). then something like the enclosure you made is fitted. This us nice though, relatively easy to do with care it can be dobe without a soldering iron by cutting away the circuitboard around the solder holding the transducer carefully
For anyone wanting to start building this with CD's I believe most CD's are not transparent after sanding the image side as the diffraction grating pattern that gives the rainbowy side is always in between two thin disks, so if you split that CD you could remove it but get your trash can nearby as you prob destroyed it. This is not on one side like the image. The transparency helps a lot in aligning the sectors but hey you might not find this a problem but alternative solution for the disks is highly suggested by me. Just thought this could help someone and save money. (I bought over 20 CD's).
Santa is not real💀💀💀
Great video! Would a plain microwave transformer (with current limiter) work as the supply, or should I add a rectifier to convert it to dc? First time making a spark gap tesla coil, I'm used to solid state ones haha
About how much torque do you get from this?
Mine didn't give much. A light touch on the motor shaft with a finger stops it. However, lasersaber managed to power a small generator ruclips.net/video/vDRCKVUO8vw/видео.html
@@RimstarOrg Wondering because I have a 100 or so ft metal tower on my property
Eu tenho um bola de vidro e um castiçal que tem efeito prisma quando boto na resta de sol no quarto fica cheio de gotas de arco-íris uma graça, o amanhecer ficou mais leve.
I love how you re-use found objects. Especially since Radio Shacks are harder to find these days. I'd love to see a video on where and how to collect electronic components from found objects. Also a video on how to make a morse code practicing sound generator. Thanks
Why can't multiple such devices be put in parallel and increase the current that way?
You can put multiple in parallel to increase the current. I didn't because the drone can lift only so much weight.
is it fair to simply say to a kid that this tech ejects atoms in near light speed to propel it self?
what is the top speed promised from this technique at it's hypothetical perfection lvl? 99.999% light speed?
5:10 you push to move neutral atoms that are coming from where, in the case of the vacuum of space?
In the vacuum of space you'd need to provide the neutral atoms yourself. Often xenon gas is used for ion engines in spacecraft in space.
@@RimstarOrg yes i got it..we provide them...so in other words we eject particles right?
nice video .... ammoying shitty music . no one asked for music. pls stop it
Actually the sky is negative and ground is positive
That depends in the weather conditions. When there's a storm, the bottom of the storm clouds are negative and the ground is positive.
Easy to understand directions.Thank you.
Thanks. I'm glad I could help. Thanks for watching my video.
Can I make Wimshurst with coke cans?
You can use parts of the cans but you'll need more than just cans. For example, you can make the metal segments from the cans, just make sure to scrape or clean off any coating so that the bare metal is exposed. You can also use the metal from the cans for the metal cylinders for the Leyden jars.
The electric chair at Sing Sing Prison was only 900 volts. It's amps that kill.
thank you
How would one go about creating a coil for a specific Frequency if only the desired frequency is known? I.E. I need a coil to resonate with 2000 MHz; say for the utilization in wireless energy transfer via coupled inductors? How does one start from just frequency?
I'm not sure if this type of coil will work for something at 2000 MHz. It might, but I'm just not sure. For example, here's a single turn coil I once made for something at 300 MHz rimstar.org/equip/oscillator_uhf_1.htm but I got that design from somewhere else. If I were to design a coil for a specific frequency though, then I'd probably use a caclulator. Here are two pages on my website that might help... rimstar.org/science_electronics_projects/lc_circuit_aka_tank_or_resonant_circuit.htm will allow you to play with different parameters to see what capacitance and inductances will give you the frequency you want. Then use this one rimstar.org/science_electronics_projects/coil_design_inductance.htm to some up with a coil that gives the inductance you want. I even have one for designing the capacitor rimstar.org/science_electronics_projects/capacitance_formula_capacitance_calculator.htm . But I haven't tried it myself for 2000 MHz.
@@RimstarOrg I've since found that for those who are a little mathematically challenged like myself you can actually utilize Chat GPT to help mock up coil designs for specific Resonances at certain frequencies more specifically in an LC circuit. I'm still learning though and I wouldn't even know where to begin with checking the math Chat GPT does to do this as it all looks like an alien language to me as it goes through the formulas haha. Also would need to check it with a Signal Generator / O-scope. I wanna get those at some point though I just don't have the money right now.
Can I also use a dc motor, so that I can just focus on the animation
I'm sure a way can be found to power it using a DC motor. Even just taping it to the top of something that rotates might be good enough.
That high voltage that kill you because only voltage can break our skin resistance cause current to flow to our heart. But voltage is not dangerous if there no potential difference.
Voltage IS potential difference. Voltage and Current work hand in hand to kill you. Current is like a gun, while voltage is the guy who pulled the trigger. So which one killed you? The gun or the person?
If it’s not enough voltage that cannot break our skin, how can current flow through our body? You can see pressure washer that wash car, amount of water(current) that comes out is so small but with high pressure(voltage) it can hurt you.
If you were not a teacher by profession, then it’s education’s loss.
We can scrap the Ag wire and substitute a Molecular Laser with a Electroactive Metallic gas polymer that will turn into the Copper wire, Drone receptor can go up to Ionosphere.
Drone made of photovoltaic materials .
I have no idea how your disk does not wobble mine so many tries I can’t get it true to the surface oh my
You could try putting all the loose parts for the pulleys on the shaft when you glue them together. That way they'll be lined up when the glue dries.
None. Amps and volts are abstract parameters. =P .... They don't touch ya.
hah your pronunciation of Curie is wrong, resembling the food dish rather than the name. oy 2:52
a physicist goes to lunch at a Japanese restaurant. the waitstaff may allude to Curie temperature when they ask, "how hot would you like your curry?"
Just want to ask the remaining coil behind the wiper is shorted. Would this not shunt all the energy in the resonate circuit to a short ?
You can leave that end of the coil unconnected. I've never tried with it unconnected myself but I'm told it works.
Great video thank you!
Wow, great video! thank you!
Thanks! Thanks for watching it!
Excellent explanation
I think a lot of people think cold water boiils faster because they've heard that hot water FREEZES faster (which it does). But these two phenomena aren't really reciprocals of each other.
a very earth grounded video
Towards the centre is negitive the out circle would be positive🤪
The fast-moving ions produce the corona discharge from the point of drag air molecules along to create the electrical windand since the luminous portion of the flame is positively charged maybe
The fast moving ions produced in the corona discharge oh i see
How does this work with sea level? If you live at 3k feet elevation does it still start at 100 volts?
Whether you're at sea level or at 3k feet elevation, you're still at ground potential, so 0V. However, the higher up you go, the thinner the atmosphere so I'm guessing there may be fewer ions and so you'd get less charge, less electricity.
@@RimstarOrg ahh good point. Thanks!
Why didn't I get taught this in school :o
You are a cool guy and thanks for this video 👍
How to calculate the number of wire?
Do you mean how to calculate the length of the wire that you need? The circumference of a circle is diameter x pi. So if the diameter of your coil is 4 cm then the length of a single turn of wire is 4 cm x pi or 4 cm x 3.14 = 12.56 cm. Then multiply that by the number of turns. So if you have 90 turns of wire then the total length needed for the coil is 90 x 12.56 cm = 1130.4 cm. Make sure you add some more for the wire leading to the coil.
Thanks
Instead of using spiked needles at the top, what would happen if you instead used a fairly large conductive sphere or a torus?
Given the large area, that might work instead.
AND NEUTRONS!
Here in 2024....learned a lot from you back in the day....Hey can you say...."I'll let you use my light house for message sending if you listen to my tale" its from rick and morty you sound like the character that saids that.
Do i need a ground?
Yes. For current to flow you need two different polarities The ground supplies one of them. You can see in my video where I did the experiment ruclips.net/video/qhXxSAv6rMg/видео.html that I didn't have a very good ground and so had to use my body to add to it.
Does it oscillate when you apply constant squeezing pressure, or only when changing squeeze pressure?
Only when there's a change in pressure. Constant pressure doesn't do anything - which makes sense, otherwise you'd be able to put it under pressure and get free energy forever.
@@RimstarOrg thank you
This is the best video for understand how it work ever. Thank you!
Good use for crockpot liner. What if you placed it in a larger pot maybe two inches wider all round, filled with water? Wouldn’t that water help inner liner to reach higher temps quicker? Or what if you use mirrors if you dont have access to that fresnel lens?
Putting it in a larger pot with water in between would make it take longer to heat up since the water would have to heat up. However, once heated up, it would keep the heat for longer. And using mirrots to reflect more light to the pot would certainly help.
Would itbe safe for cooking meat? Maybe fish?
answer is: Stupidity of society always want one word answer to everything. Any more complex answer is unacceptable. That's why ppl believes that climate is changing because of CO2 produced by us.
Yep, but yeah human CO2 emissions IS a cause of climate change, just like there are natural (non-human) causes
What size is the head? I’m thinking about making my own design for BB8
I have the dimensions that i worked out for the BB-8 that you see in stage shows on my webpage here rimstar.org/science_electronics_projects/bb-8_dimensions.htm The head for mine is around 20cm in diameter.
cool