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The resident eggheads at KAIST (the Korea Advanced Institute of Science and Technology, something like South Korea’s MIT) developed a technology called Shaped Magnetic Field in Resonance, or SMFIR. It consists of power cables operating at a specific frequency, which then generates an electromagnetic field. A coil placed within a certain proximity to that field can turn that resonance into electricity. It’s essentially wireless charging, but due to the intricacies of the KAIST design, they can achieve an astonishing 85% transmission efficiency.
What Gumi has done is lay SMFIR cable underneath select stretches of road, and then kitted out two electric public buses with the SMFIR coil. The batteries in the buses are quite small—about a third the size of what you’d find in a regular electric vehicle—and planners calculated that due to the high efficiency rate of SMFIR, they only needed to wire 5% to 15% of the bus’ route to provide the requisite juice.
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.
Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7:30pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.
Biohacking — Vitamin-C + Gelatin for Accelerated Recovery
Python for Microcontrollers — MP3 decoding, CircuitPython snakes its way to Fomu, NXP, and more! #Python #Adafruit #CircuitPython #PythonHardware @circuitpython @micropython @ThePSF @Adafruit
Outstanding accomplishments in the field. Korea is one country to look forward to technological advanced in the next years to come.