My next video is honestly a long-held dream of mine. Finally, after decades of collecting, I have bought some lasers in the yellow range between green and red.
In this video, I unbox them and check if they light up.
In my upcoming main...
2023-09-15 17:12:01 +0000 UTC View Post
The more I look into quinine and the factors needed for its luminescence, the more I appreciate the fluorescence of tonic water. It really is a happy coincidence that tonic water provides the right conditions for it to work at all!
In this v...
2023-08-27 17:47:00 +0000 UTC View PostOne of my favorite sounds is the unearthly chirps that lake ice makes when a rock skips over it.
However, it is not easy to freeze a lake to demonstrate it... but there is a surprisingly easy way to make a similar sound. In this video, I sho...
2023-08-15 17:02:01 +0000 UTC View Post
Fluorescence and phosphorescence are just as fascinating to me today as they were when I was a kid. I have made several videos about them but I want to dig even deeper into their mechanism.
In this video, I test the effect of changing the co...
2023-07-30 17:47:01 +0000 UTC View PostWe all use a lot of chemicals every day. Most of them are harmless or even healthy for us - thankfully. But some needs to be treated with a lot of respect.
In this video, I reveal the most dangerous chemical I use on a daily basis, what I use i...
It is summer time on the Northern Hemisphere where ~90% of humans live. An appropriate time for project Desert Sun Lamp!
I will assemble and light up the special lamp I showed here on Patreon in my February video. A light designed to mimic s...
2023-06-30 17:17:00 +0000 UTC View Post
I often find the visible light coming from blacklights and other ultraviolet sources annoying. For UV fluorescence experiments, I feel like they would pop more without the visible violet light such as the 405 nm spectral line from mercury.
I...
2023-06-17 15:42:00 +0000 UTC View Post
Time to test the UV-cards I unboxed in my February video here on Patreon. UV-cards are a cheap way of detecting ultraviolet light but are they too cheap?
In this video, I test three of them with six different light sources to see what they ...
I only rarely drink hot drinks - yet I have bought a mug for myself. A special one though. With dinosaurs and thermochromic paint!
Thermochromism is a strange property that makes you question what color is. In this video, I test the mug out ...
2023-05-13 17:19:00 +0000 UTC View Post
For your information, I will upload a patron-exclusive video this coming weekend.
As something new, I will try to upload it directly to Patreon making it a truly patron-exclusive video. I have not tried it before so let me know if it works w...
2023-05-11 15:34:41 +0000 UTC View Post
So many videos I watch on eddy current experiments only explain how they create a repelling magnetic field. However, they can create an attracting field too... Time to tell about both possibilities.
In my new video, I dig deeper into the edd...
2023-04-30 17:17:01 +0000 UTC View Post
Kitchen equipment have evolved quite a bit since I was a child. My current stick blender can turn into a vacuum pump...
Not sure how strong a "vacuum" it can form but in this video I have some fun testing it :)
Is it just me or does th...
2023-04-14 15:45:54 +0000 UTC View Post
As mentioned in my previous post, I have been working on testing another of the sensors in my smartphone: The 3-axis magnetometer.
Measuring magnetism in three dimensions is really a luxury, so I want to know if the smartphone will work as a...
2023-03-31 16:47:00 +0000 UTC View Post
In an earlier video, I tested my phone as a lux meter and sound level meter. With the spectrometer out for measuring the infrared sensor under the screen, I thought I might as well test the spectrum from the AMOLEDs in the screen. Here are the rec...
2023-03-18 10:04:01 +0000 UTC View Post
I believe this new video has been the most editing-intensive video I have ever made. Seems like bad planning to make such a time-gobbling video in the shortest month of the year, but...
It is a celebration of my channel hitting a whopping 75...
2023-02-26 18:17:01 +0000 UTC View Post
In my latest public video, I promised you an update on a better UVB source. Well, here it is.
I will show the lights I've had for a while but never have had turned on - and unbox the stuff needed to light them up. A project I have named 'De...
I have some old halogen flood lights that I used as studio lights in some of my early videos. I remember the manual mentioned that they must not be used if the glass cover is damaged in any way. But the manual did not mention why?
Warnings w...
2023-01-29 18:32:01 +0000 UTC View Post
I would like to say goodbye to 2022 by telling you about my favorite parts of the 12 public videos released in 2022. So I made this patron exclusive video about it. Most likely different from what you liked the most!
Going through the videos...
2023-01-16 19:44:51 +0000 UTC View Post
Final video of the year. And it was a big one to make. I probably should have made this a two-part video...
Anyway, I would like to find an inexpensive alternative to dedicated lux and decibel meters. I have a multimeter that should work as ...
2022-12-30 18:47:01 +0000 UTC View Post
Here is a little behind-the-scenes exclusively for you. I show the process of how most of my thumbnails are made. They are not photographs with a text overlay...
Sorry about the subpar sound quality in this video. At times, my laptop's...
2022-12-17 18:15:01 +0000 UTC View Post
It has been two years since I released a video in the series 'Monster magnet meets...' A video series with some of my best and most popular videos. Time for a new one!
This time I will test how a subwoofer reacts if I place my largest ...
2022-11-27 18:47:00 +0000 UTC View Post
November is my least favorite month. I have very few positive things to say about it. And this particular November is a stressful, busy, high-paced one. Probably a good thing, since it will make November pass by faster ;)
In this exclusive v...
2022-11-15 18:05:00 +0000 UTC View Post
I have never tested the max output from a power supply. So how is it done?
In this new video I try different approaches. Most of them do not work well but making mistakes is often more learnful and memorable than just trying the right - expensi...
My cheap lab power supply is rated at max 300 watts (30V, 10A), so I was surprised to measure 32V from it. However, it was with no load on it. Maybe the ...
2022-10-23 17:30:01 +0000 UTC View Post
Sharing an unboxing of a test instrument you helped me get. Thank you!
This test instrument is exactly what I needed for the upcoming October video. I will not spoil too much of the unboxing and upcoming video here, but there is a clue in my...
2022-10-16 17:14:01 +0000 UTC View Post
In my previous video, I used a banana in an attempt to detect UVC. I did see a result but only with a strong light resting right on the banana.
Was it UVC or heat that discolored the banana? In this video, I try to separate the heat and UVC....
2022-09-30 17:47:01 +0000 UTC View Post
I have made several videos featuring fluorescent foods, but would really like to make one with the even more impressive phosphorescence.
I just only know of one phosphorescent food and it is hard to film. This video features some test shots ...
2022-09-18 17:15:01 +0000 UTC View Post
The recent pandemic spawned a flood of "UVC" disinfection lights. Many of which only emit UVA like a blacklight, which has no sterilizing effect.
In this video, I test a handheld device claiming to emit UVC. I also look into how much UVC wou...
2022-08-28 18:18:00 +0000 UTC View Post
Now for part 4 of my series on bad colors. After buying some new studio lights on sale in part 3, I have been looking for some affordable softboxes for them.
In this video, I unbox and set up some big softboxes and do a little comparison wit...
2022-08-20 17:00:05 +0000 UTC View Post
As you may have noticed, I am fascinated by fluorescence. However, it can be hard to find any practical uses for it outside a lab (or as blacklight in a retro disco...)
In this video, I will test if fluorescence can be used to find the only ...
2022-07-30 17:47:59 +0000 UTC View Post