Science Fiction nik282000 • 2 weeks ago • 97%

Using a vinyl cutter and mini-sand blaster I made some alternate universe corporate schwag! I like the idea that someone might have swiped these during an interview before both companies had their 'accidents.'

Electronics nik282000 • 3 weeks ago • 95%

I got my hands on some really weird EL panels and did a little dive into how they work. I still have no idea where to get more but I think they may be DIY-able.

3DPrinting nik282000 • 4 weeks ago • 97%

www.thingiverse.com

I was gifted an unused Ender 3 Pro two weeks ago and managed to model and print an adapter to connect Sony E-Mount cameras onto a 42mm dovetail used by microscopes. Bed adhesion, leveling, stringing, clearance issues, blobs and permanently welded supports, I got to battle it all but thanks to the massive volume of community support I worked my way though.

3DPrinting nik282000 • 2 months ago • 98%

I was given an Ender 3 Pro last week and after a few bumps managed to successfully CAD, slice and print a booster seat for my phone. The caddy as it was would grab the volume down button on my phone, this little wedge solves the issue!

Physics nik282000 • 3 months ago • 95%

I learned this week that many high speed CD-ROM drives used balancing balls on the spindle to stop discs from vibrating at 10Krpm. Between the platter that supports the CD and the motor there is a puck with a toroidal void containing a few ball bearings. When an out of balance CD is spun up the spindle and disc together rotate around their common center of mass, some point between the spindle and the edge of the disk. This means that the void containing the balls no longer rotates around it's center, it spins like a hula-hoop around the spindle/DC center of mass. With the "lighter" side of the system being farther from the center of rotation the balls roll 'down hill' towards the side of the void that is experiencing more centrifugal force. Eventually enough balls will collect on the light side to perfectly cancel out the heavy side. If there are too many balls they will distribute themselves inside the void until they cancel out each other's weight! The link leads to a scaled up demo of this using an empty water bottle and steel BBs.

Digital Art nik282000 • 3 months ago • 97%

// Randomly spawn drops // Take a random fraction of each cell move it down, or down and to the left or right // The remainder of the fraction stays where it is // Subtract a constant small value from all cells to prevent rain from accumulating

Generative Art nik282000 • 3 months ago • 69%

// Randomly spawn drops // Take a random fraction of each cell move it down, or down and to the left or right // The remainder of the fraction stays where it is // Subtract a constant small value from all cells to prevent rain from accumulating

RetroGaming nik282000 • 3 months ago • 97%

I found a box of CD-Roms and floppy disks in my mum's basement and damnit, I want to play them! I could use emulators, DosBox or VMs but it's never quite the same as having the real thing, so between an eBay mobo and a box of old parts I managed to build my new gaming rig to cover 1990-2005. Its running a P3 at 1GHz, 512MB of ram, and an ATI Xpert98 with 8MB of memory. As I didn't want to run an old IDE drive with a million hours on it, I tried an SATA-IDE adapter, it caused some issues during the install but that just felt like the standard Windows experience. Though unpopular, I went with ME for 2 reasons, the first was Dos support, the second is that I went from W95 to ME as a kid, 98 wouldn't have felt the same. The install bricked twice with video drivers but I finally got it up and running with the default drivers and an 18" Samsung flat CRT (runs up to 1600x1200 at a nauseating 60hz). So what were your favorite games from the 90's and early 2000s?

Toronto nik282000 • 3 months ago • 90%

> In the ruling, the judges argued the application could not be successful because of a new law, Rebuilding Ontario Place Act, 2023, that the government passed days after the court application was filed last November. wow

Digital Art nik282000 • 4 months ago • 98%

Made with Processing.org

RetroGaming nik282000 • 4 months ago • 97%

Repaired some broken solder joints, sanded out the biggest scuffs and polished most of the scratches out of the screen. Oh yeah, and the paint job.

CRT Gaming nik282000 • 4 months ago • 96%

I tried to go for an 80's NES theme. Not perfect but not bad.

Physics nik282000 • 4 months ago • 100%

The two hemispheres are electrically connected to each other and to an AC power supply, the ring is connected to the same AC supply but 180 degrees out of phase. Particles are charged and then injected into the trap, they are then alternately attracted to the ring and hemispheres causing them to oscillate and become trapped! As the voltage is increased lighter particles pick up more speed until they are finally thrown free from the trap. In ideal conditions ions are all charged the same amount allowing the trap to sort the ions from lightest to heaviest, allowing you to determine the atoms that make up a particular substance. In this model I can not control the charge on the particles but it is possible to roughly sort them from smallest to largest. Notes: This trap is scaled WAY up, the ring had a diameter of about 24mm. I'm trapping non-dairy creamer not individual ions. The frequency this trap runs at is WAY lower frequency than that of a real ion trap. This trap runs at a much higher voltage than a real trap. Otherwise them mechanism of operation is identical to the real thing.

Astronomy nik282000 • 6 months ago • 94%

So I bought 2 sets because it looked like one set was briefly lost in the mail and this past week I got an email from Amazon that said one set I bought were “fakes.” - Both sets have printing that matches legitimate manufactures. - The “legitimate” set have all black filters (not the metalized filters I am used to like Thousand Oaks Optical) the “fakes” have the metalized filters. - Both sets of glasses have the same transmittance as the Thousand Oaks filter material I use on my telescope and cameras. - The build quality of the “legitimate” glasses is quite a bit worse than the “fakes” with the two layers of paper being misaligned So, what I suspect is that I actually received a crappy set of “real” glasses and a well made set of counterfeits, this seems in line with the press release made by the American Astronomical Scociety.^[0]^ > Some of these newly identified counterfeits are indistinguishable from genuine Qiwei products and appear to be safe. Others look like Qiwei’s eclipse glasses, but when you put them on, you realize they are no darker than ordinary sunglasses. So, these products are not just counterfeit, but also fake –– they’re sold as eclipse glasses, but they are not safe for solar viewing. So, did anyone get unlucky enough to get some ‘real-fake’ glasses? An did anyone get a set of legitimate glasses with the non-metalized filter? ^[0]^ https://aas.org/press/american-astronomical-society-warns-counterfeit-fake-eclipse-glasses

Astrophotography nik282000 • 6 months ago • 86%

So I bought 2 sets because it looked like one set was briefly lost in the mail and this past week I got an email from Amazon that said one set I bought were "fakes." - Both sets have printing that matches legitimate manufactures. - The "legitimate" set have all black filters (not the metalized filters I am used to like Thousand Oaks Optical) the "fakes" have the metalized filters. - Both sets of glasses have the same transmittance as the Thousand Oaks filter material I use on my telescope and cameras. - The build quality of the "legitimate" glasses is quite a bit worse than the "fakes" with the two layers of paper being misaligned So, what I suspect is that I actually received a crappy set of "real" glasses and a well made set of counterfeits, this seems in line with the press release made by the American Astronomical Scociety.^[0]^ > Some of these newly identified counterfeits are indistinguishable from genuine Qiwei products and appear to be safe. Others look like Qiwei’s eclipse glasses, but when you put them on, you realize they are no darker than ordinary sunglasses. So, these products are not just counterfeit, but also fake –– they’re sold as eclipse glasses, but they are not safe for solar viewing. So, did anyone get unlucky enough to get some 'real-fake' glasses? An did anyone get a set of legitimate glasses with the non-metalized filter? ^[0]^ https://aas.org/press/american-astronomical-society-warns-counterfeit-fake-eclipse-glasses

Photography nik282000 • 6 months ago • 95%

In the ten years since I took this photo the trail has been abandoned and the tree has rotted away.

Astrophotography nik282000 • 6 months ago • 97%

This will be the only chance I will have to see a total eclipse so I slapped together all the gear I own and made a dry run today. There were some wispy clouds that made things a little soft but it's better than the 400mm I used in 2017.

A Boring Dystopia nik282000 • 6 months ago • 90%

www.blogto.com

> To prevent the possibility of being attacked in your home, leave your fobs at your front door, because they're breaking into your home to steal your car. They don't want anything else.

A Boring Dystopia nik282000 • 6 months ago • 97%

www.bbc.com

Totally unrelated to the Boeing that lost a wheel last week or the Boeing that had "a strong movement" today, injuring 50.

Nostalgia nik282000 • 7 months ago • 98%

So many CRTs.

Canada nik282000 • 7 months ago • 99%

www.ctvnews.ca

$40M that came of a Conservative motion which was backed by the NDP.

Canada nik282000 • 7 months ago • 100%

> London, Ont., police officers participating in a competition in Dubai alongside a Chechen group accused of committing atrocities in the conflict with Ukraine

Ontario nik282000 • 8 months ago • 100%

> When it comes to preventing your plate from being duplicated, Sgt. Schmidt said "there's really nothing you can do," because by the time a driver gets a bill or ticket, their plate has already been cloned. > "You have to clear your name and prevent this from continuing," he said. A clear and concise "get bent" from the OPP when asked how they intend to address crime.

Soldering nik282000 • 9 months ago • 96%

I made this 'fix' about 7 years ago and the device is still in use today. I know which one it is because my 5ohm resistor came out around 4.9 so the device always runs 2% out of spec.

Bread nik282000 • 10 months ago • 96%

- 1/3 Whole wheat flour - 2/3 White bread flour (all purpose works as well) - 70% Mill Street Organic Lager (any light lager works) - 2% Salt - 1.5% Yeast Bulk ferment for 2 hrs with one or two folds at 20min and 40min. Proof for 2 hrs then bake in an oven that was preheated with a cookie sheet full of water (careful of the scalding steam when you open the door). As soon as the bread is in the oven spray it down with way too much water (careful of your oven window) then close the door to trap all the steam. You should get some good spring and that nice crunchy/speckled crust. Protip: 500g of flour is the perfect amount for a 355ml can of beer.

Canada nik282000 • 10 months ago • 96%

> "Not every item within [the plastic manufactured items category] has the potential to create a reasonable apprehension of harm" As long as we agree not to be apprehensive about the harms resulting from the use and manufacture of **all** plastics, they are ok. Got it, bring back the straws and stir sticks! > The challenge to the federal government’s proposed ban was brought last year by the Responsible Plastic Use Coalition (RPUC) and several chemical companies. They argued that the federal government had failed to demonstrate that it had enough scientific evidence to justify the regulations. RPUC was formed in 2021 in response to the “toxic” designation, and currently includes more than 30 processors and resin makers, including Berry Global Group Inc., CCC Plastics, Dow Inc., Ingenia Polymers, IPL, LyondellBasell Industries, and Nova Chemicals Corp. https://www.canplastics.com/canplastics/judge-quashes-cabinet-order-underlying-canadas-single-use-plastic-ban/1003462513/

Physics nik282000 • 10 months ago • 100%

**TL;DR** This is a drop of the solvent from pen ink dissolving into water and filmed at 1500fps, played back at 30fps, the field of view is 5-7mm ish. Phenoxyethanol is the solvent in ball point pens that gives the ink it's distinct smell. It is just barely soluble in water and saturates at a very low concentration, it is more dense than water but small droplets will float unless the water is already saturated. It also has a significantly lower surface tension than water. On first contact with water the droplet of phenoxyethanol spreads out and is supported on the surface. Soon after the edge of the droplet starts to split into dendrites that wave violently and send out extremely high speed ripples across the water. As the droplet shrinks and breaks up smaller arms form on the larger ones until the droplet wiggles itself into non-existence. What the hell is going on? When the droplet first contacts the water it begins to dissolve and immediately saturates the area directly below the drop, at the edges of the drop the saturated solution is pulled away by the surface tension gradient around the drop. This gradient sets up a flow of unsaturated water up from below the drop and away, across the surface, both supporting the droplet and pulling it out wider and thinner. Tiny inconsistencies lead to the formation of of the dendrites, as the area between two arms becomes saturated they are pulled apart (and closer to other arms) leading to the rapid back and forth wiggling. This continues at all scales forming similar shapes on the scale of several mm down to fractions of a mm. It took me weeks of messing around with the camera and reading about fluid dynamics to figure this out. I even spoke with a couple of fluid dynamics experts who both told me "hey, that's really weird, why does it do that?" For a more detailed view I have a video here: https://www.youtube.com/watch?v=npkv8gspVO0

Bread nik282000 • 11 months ago • 97%

It took me a whole summer but I'm finally getting consistent results from the pizza oven.

After messing around for the summer I've settled on a favorite dough. It works just as well in the electric oven as in the wood oven and has a great flavour thanks to the use of beer. I was worried that the alcohol and carbonation might interfere with the yeast but it doesn't seem to slow things down at all. At 70% hydration it's super sticky and a hassle to kneed but it only takes a couple minutes to get all the flour incorporated, then I let it proof for a little longer. After proofing and dividing I give it a serious stretch and fold before shaping and that makes up for my half-ass kneed. TL;DR - 2/3 ap flour, 1/3 whole wheat - 70% hydration with 2/3 of that being room temp lager - 2% salt - 1.5% yeast

Roadcam nik282000 • 11 months ago • 66%

For 15 years I would see one or two u-turns a year while commuting, now I see at least one per day. wtf?

I got a stainless wood pizza oven with a 'stone' floor as a gift and while I rarely put pizza in it, I love it for making bread. Temperature control is not so simple but the camp-fire flavour more than makes up for it. By far the best thing it makes is pita bread as the temperature is high enough to really inflate the bread with steam. Is anyone else using wood for their baking? What does your oven look like?