Mr. Trash Wheel, a floating mechanism with large round eyes affixed to its hood, was installed on a tributary leading to the Baltimore Harbor in 2014. Since then, the trash-scooping object has intercepted 638,594 plastic bags, 1,000,000 styrofoam containers, 150 miles of cigarette butts, and one ball python. Using the power of the sun, the semi-autonomous machine rakes litter out of the water and up a slow but sturdy conveyer belt. The belt is strong enough to hoist mattresses, trees, and kegs from the water and into a dumpster located on a separate barge for recycling and disposal.
The device was created by sailor and engineer John Kellett who watched debris build up around Baltimore’s waterfront for over twenty years. Mr. Trash Wheel has helped lead to Maryland’s statewide ban on Styrofoam food containers (a first in the country), partly because of a loyal Twitter following by local fans who are witness to the devastating amount of trash intercepted each day.
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.