Archive for the ‘appliance’ Category:

2025-03-21 Magnetothermal Refrigerator Is More Efficient

This system uses a heater and cooler that is fixed with transfer into moving fluids.  I wonder if they have tried changing it to a system where the heater and cooler is like a regular refrigerator where the heater and cooler moves around with the transfer into fixed locations.  So the magnetothermal metal would move. 

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2025-03-19 Solar Panel Cleaner Sprays Dust Away

https://www.facebook.com/NiftyThriftybymetdaan/videos/953912510279200/?mibextid=9drbnH&s=yWDuG2&fs=e

2024-12-20 How A Sewing Machine Works

Each year over 100 Billion garments are produced.  In the US alone, 11.3 million tons of clothing ends up in landfill.  35 kg of clothing per person is thrown away each year.  After the 9 minute point in this 10 min. video. https://www.facebook.com/veritasium/videos/901458934835977/?mibextid=9drbnH

2024-12-07 Precision Agriculture: Device Uses Laser To Burn Weeds

2024-08-15 Apple Wireless Charger Was A Failure, Tesla’s Was A Success

Apple’s wireless charger would burn up when charging more that two devices. 

2024-03-09 Big Clive’s Old Tungsten Roadwork Beacon – Barricade Flasher

I built this “tungsten roadwork beacon” as Clive calls it, using the parts given in my schematic (photo below). I didn’t have a 6V, 90 mA lamp, so I simulated it by using three 20 ohm, 1/4 Watt resistors in series, which gives 60 ohms and 100 mA load with 6VDC.  For an indicator I

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2024-04-06 The Flexible LED Filament

This YouTube short demos a flexible LED filament and shows how to configure it for 5VDC.

2024-02-12 Catalytic Converter For Smokeless Fire Wood Stove

This is really interesting.  A catalytic converter for a wood stove.  1 min. YouTube video.

2023-10-26 120V Heat Pump Water Heater Review

This HPWH made by Rheem requires only a 120VAC wall outlet. It requires a plastic condensate drain tube. It uses about 350 to 450 Watts. Theirs drew 65 kWh for the month of August. Their electric resistance water heater used 290 kWh average per month. The water heater cost $2533.00 from Home Depot. This article

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