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...
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...
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...
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.
I...
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 dange...
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...
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...
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 ...
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...
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 hav...
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...
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 som...
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, ...
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 spectru...
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...
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 n...
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. Bu...
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 ...
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 decibe...
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 ...
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 ...
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 No...
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 ...
My cheap lab power supply is rated at max 300 watts (30V, 10A), so I was surprised to measure 32V from ...
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 ...
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? ...
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 ...
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 claim...
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...
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 ...
2022-07-30 17:47:59 +0000 UTC View Post