![]() I and 99% of all other people who use blue light reduction software use it because we feel less eye strain when we remove the blue light from our screen at night. Melatonin secretion stops when our eye sees blue light.īut do people problem is actually bad sleep or it is eye pain? Sleep vs Eye pain Not exactly bad, but we are made to have day and night cycle of light and at night you should lower blue light to sleep better. The f.lux app main assumption is that blue light is bad for your sleep. Let’s first start with f.lux 3 which was somehow the first version of f.lux and was actually better than the new f.lux 4 beta which is bloated with not needed features. In this article, I want to make a general comparison between the 2 programs, but take my words with a little grain of salt since I’m a little tendentious □ What f.lux is missing? I wrote to the dev team if they can add custom control of the blue light and schedule by time, but they didn’t respond to me.Īnd this is how I decided to add blue light and color temperature to Iris. I had awesome sleep, but I was feeling really bad eye strain when I used computers. I found f.lux while reading one article about how to feel less eye strain, but what I didn’t like about it was that it was somehow focused on sleep which was not my problem. When I started to have eye problems in 2015 I wanted to be able to manually control the blue light of my screen. (also note, do not get plumber's flux as it is dangerous for your soldering tip and it will eventually destroy the tip).F.lux is a popular blue light filter program, but I personally hated several things about this program. It will make your learning process much easier. Technically you can solder without external flux if you have a flux core solder wire, but Since you are a beginner, I recommend getting those small packs of white flux which are dirt cheap. Again, you are not looking for the best of the best, but these two are the bare minimum that you can get away with. ( Always ensure it has a three prong plug for earth connection for your own safety). Just buy any 25-35watt soldering iron which directly plugs into mains, preferably with a needle or conical tip, if you will solder on small pads. Yes, many soldering tutorials will tell you to buy an expensive soldering station with temperature control, metal sponge, normal wet sponge, tip tinner, and a lot of stuff, and I do agree that for beginners that much of investment is really not necessary. I understand that you might have your reasons for trying to substitute soldering wire, but believe me when I say there is absolutely no way you can do that. Not sure why they did that, weight saving possibly, or eliminating a possible toxic contaminant from the spacecraft. Instead, the wires were bonded to components by spot-welding. ![]() I should note that the Apollo Guidance Computer was built without solder or flux. Vapor from 'no-clean' fluxes is worse than rosin types. MORE: different fluxes have different toxicity. To answer your second question, most mild acids can be used for flux, but that doesn’t make them any better than rosin (in fact they're probably more harsh.) For example, when I did Tiffany-style stained glass I often used oxalic acid for flux, that wasn’t so great to breathe either. Even leaded solder is fairly safe, just wash your hands afterward.Īs far as flux, rosin vaporizes when it’s heated and it’s not so great to breathe, use ventilation to draw it away. ![]() Why bother, anyway? Lead-free solder is widely available (it’s mandatory for plumbing), so working with it poses no health risk other than the flux fumes. Silver can be used for flame brazing though. Same story for silver: melting point for the unalloyed metal is too high for soldering. Solder is a tin-lead alloy or tin-silver-copper alloy for lead-free. For one thing, pure lead melts at too high a temperature. If you were thinking about an object with lead to be recycled for solder, don’t. ![]() Solder is an alloy that melts at a low enough temperature that it doesn’t damage components when it’s applied, and it adheres well to copper and brass (hence its use in plumbing.) For normal types of electronics work, not really.
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