Views : 891,931
Genre: Science & Technology
Date of upload: Apr 24, 2024 ^^
Rating : 4.979 (208/39,567 LTDR)
RYD date created : 2024-05-04T15:02:09.462655Z
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Top Comments of this video!! :3
Technology like this where logic is accomplished through clever use of materials science and geometry is so fascinating to me. I tend to imagine that there's just a PCB or something in these kinds of devices, but I never really thought about how they made electric stovetops work before you could just stick circuit boards in everything. It takes a lot of creativity to engineer things like this!
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I was a repair man for a famous company for about 30 years. When I started working for them, they only had washers, dryers, dishwashers and disposers. Suddenly, they bought another company that made kitchen products. At that time, the cooktops used voltage controlled infinite switches. no matter what the wattage of the element, the switch cycled as expected. It was great because all the elements took the same switch, the only difference was knob direction and mounting screw location. with the advent of disc elements and glass tops, they quietly introduced the type of current controlled infinite switches that you demonstrated in this video. If the guy who ordered the parts didn't look carefully at the part numbers, you would get the wrong switch for the size element and then the fun would begin. I'm not so sure why they became so popular with design engineers but they weren't so popular with technicians. I suspect that by having a resistor in lime with the load made the arc flash a little less noticeable when the switch cycled but, as you shower, it was still there. I actually met a man who claimed that he was a scientist who worked on a project to make the purest tungsten possible so that switches would not flash when they opened or closed. he said that it was not possible to make tungsten switch contacts any purer but another research team had come to the conclusion that pounding switch contacts together at high speed reduced the arc flash to an acceptable level and the modern switch was born. Luckily, the arc flash is conveniently hidden by metal pannels so very few (not nobody_ complain about it
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9:40 for those who donât speak American, he is actually saying DUTY cycle, not doody cycle.
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I remember when my dad explained how the thermostat for our electric heater worked. It was a wall-mounted thermostat, where you simply set the temperature you wanted. Easy enough. It was in series with the heater, so when you reached the temperature, it opened the circuit. Easy enough. But the thermostat had a wall plug?? Oh, my dad loved to explain this one. That current heated up the bi-metalic strip just a tiny, tiny bit inside the thermostat, so that the heater would now believe it was hotter than it really was. Throw any crude timer device on this, and now you have a thermostat with night time adjustment!
Today, I have a smart home with 100 devices, rules as complex as the Apollo 11, and besides it knowing if today is a banking holiday or not, it does the exact same thing. There's a real appreciation in rudimentary technology that I wish we never forget.
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@WanJae42
1 week ago
"My favorite channel is talking about stoves today" ... My friends have learned to expect this sort of remark from me.
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