12-year-old engineer invents device to combat ocean microplastic pollution
Du created an underwater remotely operated vehicle that uses infrared light to detect, photograph and help remove microplastics from marine environments without harming living creatures.
“Plastics are already a huge problem, and then there are microplastics,” Du told AccuWeather. “When fish eat it, they get a toxin called bisphenol A inside their bodies, and even if they poop the plastics out, they still keep the toxin inside of them.”
The health of humans also faces detrimental impacts from consuming plastic-contaminated fish. source: https://www.accuweather.com/en/weather-news/6th-grader-invents-device-to-combat-ocean-microplastic-pollution/70005513?utm_medium=referral&utm_source=mixi&utm_campaign=accuweather
The Fixers Using Recycled Laptop Batteries to Power Their Homes
The rechargeable batteries in your laptop, your cell phone, your headphones: all of these can be used to power your life and take you off the grid. DIY Powerwalls – rechargeable lithium-ion battery installations, made from recycled batteries – are the future of power, whether you know it or not. discover more
go to the DIY Battery Technology
What is cold welding? Watching this video you will understand!
The Myth on Capacitor Polarity / Are Your Capacitors Installed Backwards?
Experienced technicians makes this mistake.
Sub Arc Welding
Completing a double joint pipe using the Sub Arc Welding (SAW) process.