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@kamnerezus 2 күн бұрын
Nice 🔥
@RamdomCunt 6 күн бұрын
ur telling me i need to get addicted to vaping just for a wind tunnel toy😭😭😭😭
@Aanand-vi9nw 7 күн бұрын
Due to lack of mobile phone recharge it's getting hard to comment 😔
@TechTed1 7 күн бұрын
Good job
@stoppi 7 күн бұрын
Thank's 😁
@johanndohmann1281 7 күн бұрын
Super Beitrag (wie immer) . Beste Grüße aus Ost-Westfalen.
@stoppi 7 күн бұрын
Hallo Johann! Vielen Dank und liebe Grüße zurück aus Graz (Österreich) 😉
@dadasagayev 8 күн бұрын
The idea of doing that, please get out of my head.😂
@Aanand-vi9nw 10 күн бұрын
Hi I think I'm a little late but good project BTW
@RalfG999 13 күн бұрын
Ich sehe oft kanäle wie deinne (meistens schon lange inaktiv) und frage mich wie ihr auf eure projekt ideen kommt? Neugier? Studium?
@stoppi 13 күн бұрын
@@RalfG999 hallo! Teilweise fallen mir die Projekte aus Neugier selbst ein, vor allem dann die praktische Umsetzung, dann stammen etliche Ideen aus Büchern (z.b. Praktikum der Physik) oder Physikkatalogen für Lehrmittel und zu guter letzt noch aus meinen 30 Jahre alten Experimentalphysikskripten. Insgesamt geht bei der Recherche nach neuen Projekten aber viel Zeit drauf. 😉
@RalfG999 12 күн бұрын
@stoppi das kann ich mir gut vorstellen. Danke für die schnelle Antwort, schöne Woche
@stoppi 12 күн бұрын
@RalfG999 danke, ebenfalls eine schöne Woche. Habe derzeit KZbin Physikvideos bis Mitte 2027 in der Warteschlange. Bis Oktober 2025 wöchentlich und danach alle zwei Wochen ein neues Video. Können also gespannt bleiben 😉
13 күн бұрын
Hi, do you have some git repo for source code? I would love to build it myself.
@stoppi 13 күн бұрын
Hello! I don't have any source code for this arduino project because the program only consists of reading the analog input and using the serial plotter for displaying the graph. Good luck with your project 😉
@josefhuber7356 14 күн бұрын
Sehr cool! Wirklich schön gemacht!
@stoppi 14 күн бұрын
Danke für den netten Kommentar 😉
@dadasagayev 15 күн бұрын
You're marvellous
@stoppi 14 күн бұрын
Thank's 😆
@dadasagayev 14 күн бұрын
@@stoppiWarum haben Sie nicht im Dunkeln experimentiert?
@stoppi 14 күн бұрын
Gute Frage. Die normale Zimmerhelligkeit trägt nichts zum Messwert bei, nur der Laser 😉
@RAZINAJIYI1RZHam 15 күн бұрын
How can I get a radioactive source?
@stoppi 15 күн бұрын
@@RAZINAJIYI1RZHam hello! For example on ebay when you look after "check source" 😉
@ruuvimeisseli1233 17 күн бұрын
What is the input voltage of the CCFL transformer?
@stoppi 16 күн бұрын
Hello! In this case for a negative high voltage output the supplying voltage is -12V. Take a look at my homepage stoppi-homemade-physics.de/hv-netzteile/, where you can find the schematics for the power supplies 😉
@ruuvimeisseli1233 16 күн бұрын
@stoppi does the model matter, can i use any CCFL transformer from china as long as the output is 900 volts and the input voltage is 12v
@stoppi 16 күн бұрын
@ruuvimeisseli1233 the circuit used in this video is a regulated high voltage power supply. Therefore you can use any similar cctv inverter. Good luck with your project 😉
@ahmetgazi6571 18 күн бұрын
Sehr interessant und lehrreich warum wurde uns so etwas nicht in der Schule beigebracht
@stoppi 18 күн бұрын
Danke für den netten Kommentar 🙂
@nwb8006 21 күн бұрын
A fluid dynamics analogy to the Lorentz force. Wind being the magnetic field (aether in motion) and the motor being the current that force the magnetic flux to rotate. So the electric motors in this experiment could work because of what is described in this experiment. And why can't we build an electromagnetic equivalent to a wind turbine and extract free energy from a magnet ? 🤔😂 Why do you need a changing magnetic flux ? Does a changing wind from your propeller make your cylinder rotate ?
@thesteammachine1282 21 күн бұрын
Cheap and effective ! No I wonder what the result might be with one of those BT 100 binoculars with added zoom of probably 90 from the eyepieces ? Telescope quality ?
@Aanand-vi9nw 21 күн бұрын
I think we have enough argued last time 😅
@Aanand-vi9nw 21 күн бұрын
Hi
@stoppi 21 күн бұрын
Hello once again 😉
@Aanand-vi9nw 21 күн бұрын
@@stoppi hi please do wireless transmission over the coherer effect try with audio transmission with it 🤔
@MiguelRodriguez-wn8mc 23 күн бұрын
Hi, your project is good. I have a question: could it be done using only a common LED as a color sensor, since polarizing it in reverse would generate a small current. Obviously it would not be that precise, but it would work. I have put together a colorimeter but using only the webcam and it works pretty well. Now I wanted to see about doing it with a simple LED.
@stoppi 23 күн бұрын
@@MiguelRodriguez-wn8mc hello! A reverse connected led will work like a photodiode. But I don't know how sensitive it will be compared to a real photodiode and I don't know the spectral response of the led. Maybe if you want to create a whole spectrum with the photometer it won't work with the reversed led. You will have to find it out experimentally. Good luck with your project, cheers stoppi
@ArthurBrecht 23 күн бұрын
Its smart people like you that we need in this world
@stoppi 23 күн бұрын
@@ArthurBrecht I believe that we would need more peaceful people 😉
@MuhammadBayuSeto 23 күн бұрын
hello, what is used for led so that the light does not spread? 🙏
@stoppi 23 күн бұрын
@@MuhammadBayuSeto I don't use any focusing lens or similar, just the LED with a short distance to the cuvette and photodiode 😉
@MuhammadBayuSeto 23 күн бұрын
@@stoppiis there anyone who coats the led like in the video at minute 2.36? 🙏
@MuhammadBayuSeto 23 күн бұрын
@@stoppiis there anyone who coats the led like in the video at minute 2.36? 🙏
@stoppi 23 күн бұрын
@@MuhammadBayuSeto what do you mean with coating? At 2:35 I use a normal 405 nm led as far as I remember....
@MuhammadBayuSeto 23 күн бұрын
@@stoppiI mean at minute 2.36 it's like something is coating the LED so that the light is focused on the cuvette and doesn't spread around, what did you use on the LED? 🙏
@merkatorix 27 күн бұрын
Beim Titel könnte man im ersten Moment denken, dass Katamarane tatsächlich instabiler wären. Die Grafik bei 4:05 zeigt, dass sie nicht instabiler sind, sondern einfach ein komplexeres Handling haben, wenn man bei Segelboten in höhere Krängungswinkel geht, nehme ich an. Bei einem Motorboot gehe ich nicht davon aus, dass Katamarane oft kentern oder ist es auch da der Fall? Zumindest für die Passagiere ist es vermutlich angenehmer, wenn es sich im Normalbetrieb weniger neigt.
@stoppi 26 күн бұрын
Hallo! Da haben Sie schon recht. Das Drehmoment ist ja beim Katamaran zu beginn sehr hoch und sollte in den allermeisten Fällen zur Stabilisierung ausreichen. Aber wenn nicht, dann gerät man beim Katamaran durch das abnehmende Drehmoment in eine instabile Lage. Das wollte ich auch experimentell zeigen 😉
@photonik-luminescence 27 күн бұрын
Absolutely great project ! Very awesome ! I do wonder how does the gas sensor work ? Does resistance of the filament change in different gas mediums ?
@stoppi 27 күн бұрын
Hello, thank's. Different gases remove different amounts of heat from the wire. Those gases that remove more heat cause the coil to be slightly colder, which reduces the coil's resistance. The Wheatstone bridge then delivers a different output voltage... 😉
@photonik-luminescence 27 күн бұрын
@@stoppi pretty neat and simple method ! Absolutely genius ! Also, one last question if you don't mind. Is the distance of the peal from 0 always the same ? If so, we could chart out gases and use this as a method to identify gases. I know that in paper chromatography you divide the length of the traveled solvent and the distance traveled by the test material and get an index. No idea if that index is always constant in a controlled environment. Hey, maybe a cool idea to build would be a Arduino calorimeter. It's not any magic, but maybe a automatic temperature difference monitoring system could be coded onto an Arduino. You could technically do the entire calculation in the Arduino using the "Kalorimetrische Grundgleichung", but again the the use would be a bit questionable.
@stoppi 27 күн бұрын
@@photonik-luminescence the peaks are only then always at the same place, if the circumstances don't change, f.e. The power of the pump... But then you are able to identify the different substances by their time when the peak appears 😉 some of my experiments/projects are just a proof of concept, that it works (or not) and I don't do further investigations. This is because often the next projects are knocking at my door 😂
@photonik-luminescence 27 күн бұрын
@@stoppi I very much appreciate your reply. I am looking forward to ways to identify chemicals at home without the use of the way to expensive gas mass spectrometer, so i looked into calorimetry for potentially being able to tell home chemicals apart and maybe gas chromatography for gases like demonstrating CO2 from baking soda with such tools (off course using aqueous calcium hydroxide is quicker and reliable, but who knows if it is always calcium hydroxide...), basically just a second affirmation. I would also try to analyse the compounds that come of a burning candle (wich in theory in a well burning reaction is always water (vapor) and carbon dioxide, so this way i could observe what comes off a candle and demonstrate what compounds are given off when saturated carbohydrate chains burn ideally (without soot). Either way, thankyou very much for reading and going through my comments.
@stoppi 27 күн бұрын
@@photonik-luminescence Sounds very interesting. Good luck with your projects and you're welcome...
@gerd3136 27 күн бұрын
Hammer, wie immer 👍😎! Danke stoppi
@stoppi 27 күн бұрын
Hallo Gerd. Danke für den netten Kommentar, gern geschehen. LG aus Graz Christoph
@MuhammadBayuSeto 28 күн бұрын
hello, how to make a photometer to measure nitrite solution
@stoppi 28 күн бұрын
@@MuhammadBayuSeto hello! Your question has not much to do with catamarans 😂 take a look in my KZbin videos. I have made one about a cheap DIY photometer. With this using the absorption rate you can measure the concentration of a solution. Good luck...
@MuhammadBayuSeto 28 күн бұрын
I have watched it, can it be used to measure nitrite with a photometer? 🙏@@stoppi
@stoppi 28 күн бұрын
@@MuhammadBayuSeto you must know the absorption graph of nitrite. If there is a wavelength which is absorbed by nitrite then you use a LED with this wavelength...
@MuhammadBayuSeto 23 күн бұрын
Thank you🙏@@stoppi
@Aanand-vi9nw 28 күн бұрын
Hey Again
@stoppi 28 күн бұрын
Hello back 😉
@Aanand-vi9nw 28 күн бұрын
@@stoppi hi well I'm from India 🇮🇳
@stoppi 28 күн бұрын
@@Aanand-vi9nw interesting country 👍 I know that 9% of my viewers are from India. It isn't the richest country. Therefore my poor man experiments may be very useful for you 😉
@Aanand-vi9nw 28 күн бұрын
@@stoppi Yah ofcourse but not poor as Austria🇦🇹😅
@Aanand-vi9nw 28 күн бұрын
@@stoppi Sorry just kidding but there should be a scientific discussion afterall we are sci guys it shouldn't be a country warhead 🇮🇳🤝🇦🇹
@drmed92 28 күн бұрын
Are you perhaps a teacher ? Your demos are incredibly decent. Cheers
@stoppi 28 күн бұрын
Hello! Thank's and yes, I am a teacher for physics and mathematics 😊
@locknut5382 29 күн бұрын
I muted to avoid the awful music.
@ResistorArcs 11 күн бұрын
Awfull?!? Nah
@locknut5382 11 күн бұрын
@@ResistorArcs Music is always contentious, and will displease most people, whichever choice is made. Even if you like it, the music in many videos is distracting. It's also discriminatory in that it makes it much more difficult for people with non- optimal hearing to understand what is being said. Furthermore, if the narrator has a strong accent which is different to that of the listener, it also adds a layer of difficulty. Many people will simply mute the audio altogether or else go to another video.
@ResistorArcs 11 күн бұрын
@@locknut5382 i understand that, it could distract someone but the music itself is not that bad
@locknut5382 8 күн бұрын
@@ResistorArcs Fair enough. There is a lot of worse noise than this which goes under the name of music. 😉
@RWBHere 29 күн бұрын
00:23 - There are only 29 capacitors of the 30 ordered...
@stoppi 29 күн бұрын
Haha, eagle-eye 😂
@ResistorArcs 11 күн бұрын
Yeah i counted them too😂
@stoppi 11 күн бұрын
@ResistorArcs that are little errors in the matrix 😂
@ResistorArcs 11 күн бұрын
@@stoppi 🤣🤣
@louiseng7272 Ай бұрын
Sorry but the loud music is so very distracting. Your video would be more useful if you had done a voice over relating the process to your audience.
@stefanobozzini6353 Ай бұрын
Thanks Stoppi, very interesting !
@stoppi Ай бұрын
@@stefanobozzini6353 hello! You're welcome. Stay curious, there will be every Friday a new video 😉
@Aanand-vi9nw Ай бұрын
Hi
@stoppi Ай бұрын
Hello 😉
@Aanand-vi9nw Ай бұрын
@@stoppi Hi Austrian
@wernerviehhauser94 Ай бұрын
The first two are pretty similar to the way Faraday's first motor worked, but without the use of mercury :-)
@23win Ай бұрын
Can you make some experiments on how to measure like fendamentale physics constants and other experiments like verifiying stephan boltzman law etc
@stoppi Ай бұрын
@@23win hello! I have made several experiments about the speed of light, the Planck constant, the Boltzmann constant, the gravitational constant, the elementary charge. There are already videos uploaded or they will be uploaded in future 😉 I have verified the Stefan Boltzmann law with my thermo pile and just with a light bulb (video will be uploaded but you will have to be patient because I have more than 100 videos to come 😉)
@23win Ай бұрын
@@stoppi so interesting, can we suggeste other experiments for the future?
@stoppi Ай бұрын
@@23win do you have any suggestions? But I fear that I have already made most of them. 😂 But any suggestions are highly appreciated...
@23win Ай бұрын
@@stoppi i will do my researchs on your channel and then i can came back to you with some good suggestions
@stoppi Ай бұрын
@@23win that would be great...
@merkatorix Ай бұрын
Ich nehme auf alle Fälle aus dem Video mit, dass Fotos viel bringen und die Illustrationen auch. Das erinnert mich auch ein wenig an einige Bücher, die ich in der Grundschule gelesen habe. "Der Natur auf der Spur" und "Geheimnisse des Alltags" von "Bau-steine des Wissens" Hans Jürgen Press. Ich finde es cool, wenn man mit einfachen Experimenten zeigen kann, wie Dinge funktionieren und was die Welt antreibt.
@stoppi Ай бұрын
@@merkatorix danke für deinen Kommentar. Ich mache ja die Illustrationen auch alle selbst. Dabei geht es mir um Einfachheit und Konzentration auf das wesentliche. Die Illustrationen sollen dann zusammen mit den Bildern und Videos den Werdegang von den eingekauften Teilen bis zum fertigen Experiment klar nachvollziehbar dokumentieren. Ich gebe mir Mühe, so viel Information wie möglich in ein relativ kurzes Video zu stecken. Von bla bla bla bzw. Reißerischen Titeln ohne nachfolgende Qualität halte ich absolut nichts 😉
@maxmustermann2596 Ай бұрын
Jetzt, wo KI-Stimmen immer besser werden, könntest du vielleicht ein Skript schreiben und von der KI sprechen lassen? Dann könnte man besser entspannen beim Schauen. Auch wenn Primitive Technology das als Stilmittel einsetzt, damit man intensiver aufs Video schaut, finde ich das mit Sprache irgendwie schöner. Aber vielleicht täusche ich mich. Die schlechten Computerstimmen sind auch verflucht nervig. Der Inhalt ist natürlich cool, nur schaue ich mir die Videos nicht an, wenn ich müde bin.
@stoppi Ай бұрын
@@maxmustermann2596 Hallo! Danke für den Vorschlag. Ich mache meine Videos noch mit movie maker 😂 Da ist nix mit Tonspuren. Ich versuche halt so viel bildliche Informationen wie nur möglich auf dem Weg zum fertigen Experiment bereit zu stellen, damit man es auch ohne größere Probleme nachvollziehen/nachbauen kann. Bin aber sicher sehr old school unterwegs...😏
@merkatorix Ай бұрын
@@stoppi Im Zweifel hätte ich die Musik weggelassen. Disclaimber: Auf der anderen Seite habe ich noch keine erfolgreichen Videos gemacht. Mindestens ein Tipp von mir hat bei einem KZbinr für 50% weniger Klicks im nächsten Video geführt. Der nächststärkere Punkt, der mir auffällt sind bei den Illustrationen die Pixel. Ich finde es noch immer cool, dass die da sind und wenn mehr Arbeit für eine Illustration dafür sorgt, dass man irgendwann eine weniger davon sieht, wäre es schlecht. Aber ein wenig gibt einem das das Gefühl, dass es mit Paint geziechnet ist. Dabei sind die Einzelteile richtig gut. Vielleicht ist es die Farbwahl und das Antialiasing, was dieses Gefühl gibt. Wenn man nicht mit Paint groß geworden ist, merkt man das vielleicht auch gar nicht. Leider ist das vermutlich auch eine kontraproduktive Anmerkung. Ich habe mir darüber Gedanken gemacht und in meinen Videos ist im Moment noch kein Inhalt. Eigentlich hätte man die jeweils durch 2 Fotos ersetzen können :P Dann lieber mehr Inhalt. Abgesehen davon haben einige professionelle KZbinr echt professionell aussehende Grafiken, die aber am Ende gar nicht wirklich besser sind, wenn man das wesentliche nicht sieht. Das sieht manchmal nur gut aus. P.S.: Ist es überhaupt Paint gewesen?
@stoppi Ай бұрын
@@merkatorix haha, es ist schlimmer als paint. Mgi photo suite nennt sich das Grafikprogramm. War vor gefühlt 25 Jahren beim Kauf eines flachbettscanners dabei. Aber ich liebe das simple Programm und es läuft wie durch ein Wunder ohne Probleme mit dem neuesten Betriebssystem. Ich achte wie gesagt bei den Illustrationen durchaus auch auf Details, dort wo es drauf an kommt. Unwichtige Sachen vereinfache ich maximal. Man darf auch nicht vergessen, die selbst gefertigten Bilder sind für den Unterricht gedacht und dass sie von 12-18 jährigen Schülern in ihr Heft gezeichnet werden. Da hilft mir das professionellste Bild wenig, wenn die Schüler dann scheitern, dies in ihr Heft zu übertragen. Deshalb verwende ich fast ausschließlich meine eigenen Illustrationen und die haben sich in der Praxis/im Unterricht mehr als nur bewährt 😉
@Aanand-vi9nw Ай бұрын
Hi
@stoppi Ай бұрын
@@Aanand-vi9nw hello... 😉
@2U15 Ай бұрын
How did you know how to limit the output voltage? I need to learn that, I don't get why those converters have this naming 10-32 to 12-35, how to choose the input/output voltage?
@stoppi Ай бұрын
Hello! The converter used for the flashlight is a step up converter who increases the input voltage. The input voltage hast to be between f.e. 10 and 32V. Then the output voltage is at least higher than the input voltage and has a maximum of f.e. 35V. So you can drive the converter f.e. With 12V input voltage from the lipo and change the output voltage by turning the little blue potentiometer from around 12V to 35V. 35V are too high for the LED. Therefore I added a resistor to limit the output voltage at 31V... If you carefully use the potentiometer and don't go higher than 31V you don't need the additional resistor.
@2U15 28 күн бұрын
@@stoppithanks. I ordered one step up too, I changed the potentiometer, now I'm understanding it a little bit more
@stoppi 28 күн бұрын
@@2U15 that sounds good. Hope you are successful with your flashlight 👍
@tihzho Ай бұрын
Great video with MUTE
@Benny-o6p Ай бұрын
I'm a complete noob, but, can you theoretically use this setup to transmute Bismuth into Polonium which in turn generate more neutrons that turns even more bismuth into Polonium in a chain reaction? Just curious. Cool setup btw
@dylanscott539 Ай бұрын
How did you remove the glass from the photodiode?
@stoppi Ай бұрын
@@dylanscott539 I used the Dremel to cut small slits into the edge of the photodiode and then levered out the glass with a small screwdriver
@dylanscott539 Ай бұрын
@@stoppiThanks, also why did you have to cut the pin off of the usb sound card?
@stoppi Ай бұрын
@@dylanscott539 to avoid shortening the signal to ground... Read my description on my homepage 😉
@dylanscott539 Ай бұрын
Thanks! I did read your page on the alpha spec and it was very helpful. The usb soundcard specific info is likely on another of your many instructional pages, unless it got cut off by google translate. I look forward to trying your gas chromatograph next.
@stoppi Ай бұрын
@@dylanscott539 good luck with your projects 👍
@osmanfb1 Ай бұрын
Very nice, thanks. How about putting it on a lazy suzan and turn it to see if the interference pattern changes?
@5Perf65mm Ай бұрын
Very nice! Thanks for sharing this interferometer construction.
@autismuskaefer Ай бұрын
Du müsstest die Spiegel mal so einstellen, dass konzentrischen Ringe als Interferenzmuster sichtbar werden.
@piercebishop4052 Ай бұрын
How sensitive is this? What sort of things could it detect as it is? Really enjoy ur videos 😊
@stoppi Ай бұрын
Hello! If you move one of the mirrors by a quarter of a wavelength, the interference pattern at a certain location changes from a bright spot (constructive interference) to a dark spot (destructive interference). It can therefore resolve movements in the range of 150 nm without any problems.
@Aanand-vi9nw Ай бұрын
Hi
@stoppi Ай бұрын
Hello back 😉
@Aanand-vi9nw Ай бұрын
@@stoppi hi Can you please make oscilloscope and arbitrary function generator without microcontroller
@stoppi Ай бұрын
@@Aanand-vi9nw In one of my projects I have made an oscilloscope and a power-function generator based on a smartphone. Here you can find the description: stoppi-homemade-physics.de/smartphone-oszilloskop-funktionsgenerator/
@leonardoleite1085 Ай бұрын
Very interesting! What is the liquid inside? Just regular water? Hot water?
@stoppi Ай бұрын
@@leonardoleite1085 hello! Yes, just regular water 😉
@leonardoleite1085 Ай бұрын
@@stoppi thanks!
@Airstrike_lol Ай бұрын
sehr cool, aber kannst du auch einen teilchenbeschleuniger bauen, der ionisierte helium kerne mit einem plasma schießt, also vielleicht irgendwie ein plasma wo dann mit magnetfeldern die kerne beschleunigt werden und dann geschossen werden α? wenn das überhaupt geht
@mohdfurqaanhanfi2142 Ай бұрын
Love this brother! From India❤
@stoppi Ай бұрын
Greetings from Austria to India 😉
@Aanand-vi9nw Ай бұрын
Oh bro can you can't even afford a table 😢
@stoppi Ай бұрын
Hello! I have a very large table in the kitchen but to be honest, my apartment is full to the brim with my physics projects. The only free space is 1 m² at the floor of the kitchen 😉
@Aanand-vi9nw Ай бұрын
From which country you are actually 🤔
@Aanand-vi9nw Ай бұрын
@@stoppi but it's good sarcasmic answer anyway
@Aanand-vi9nw Ай бұрын
@@stoppi Plz try to give from different projects than other bcz actually I have already seen this project from another channel a long time ago
@stoppi Ай бұрын
@@Aanand-vi9nw The beautiful little Austria 😉