Mathematics
Carl Sagan Explains the 4th Dimension
I remember watching this on TV when I was a kid and it blew my mind. It is hands-down the best explanation of four dimensions, curved space, and more – all done in Carl Sagan’s trademark awesomeness.
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Maker
Solar
Should You Build or Buy a 5V USB Portable Solar Power Charger?
-
Frank
- August 3, 2020
- 4W
- 5V
- Amazon
- Beginner
- beginners
- boost
- buck
- buy
- cell
- charge
- charger
- circuit
- constant
- converter
- current
- DIY
- do
- electronic
- Electronics
- epoxy
- flux
- fold
- foldable
- garden
- Go
- greatscott
- Guide
- it
- light
- load
- make
- maximum
- measure
- mppt
- on
- open
- or
- output
- panel
- pen
- point
- portable
- Power
- project
- resin
- review
- short
- Solar
- solder
- sun
- tapping
- test
- tester
- the
- track
- tracking
- Tutorial
- usb
- voltage
- wire
- yourself
In this video, GreatScott! takes a closer look at a commercial 5V USB portable solar power charger. After measuring its output power and pretty much “short reviewing” the product, I will try to make my own DIY version that should cost around the same while outputting more power! Let’s get started!
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