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Smart recycle bin wins record-breaking MHacks event

Bothered by seeing glass bottles and aluminum cans in the trash even when a recycling bin is close by, classmates Zachary Lawrence, Joshua Drubin and Andres Toro arrived at MHacks with an idea for a single-stream receptacle. | Medium Read

An intelligent trash can that sorts recyclables from garbage won first prize at this weekend’s 36-hour maker blitz, MHacks, the world’s largest college hackathon.

Organized by Michigan Engineering students and held at the U-M stadium, the event drew a record 1,214 people from roughly 100 schools across the country. The team that made “GreenCan” came by bus from the University of Maryland. The students were one of the few groups to make a physical object, rather than an app or a web tool.

Bothered by seeing glass bottles and aluminum cans in the trash even when a recycling bin is close by, classmates Zachary Lawrence, Joshua Drubin and Andres Toro arrived at MHacks with an idea for a single-stream receptacle. The bin they built has a swing top that pivots in a different direction based on the sound an object makes when it hits it.  Ping-y cans and bottles end up on one side of a partition and thud-y foam cups on the other, for example.

“I never dreamed of coming here and actually winning,” Drubin said. “It feels unbelievable” – even on six hours sleep total for the past two nights. The GreenCan guys took a cat nap approach, slumbering for 30-minute stints every five hours.

“We’re definitely going to feel it soon enough,” said Toro, as their 10-hour ride home approached.

GreenCan won $6,000 and entry into Greylock Hackfest, a high-profile, competitive event organized by Silicon Valley venture capital firm Greylock Partners. Team tabbr from Carnegie Mellon University took the $2,000 third place with a web tool that searches through open tabs open on a computer.

The $3,000 second place went to team Save My Glass, a “head-up” driving display for Google Glass devised by Mike Huang and Austin Feight, juniors in computer science and engineering at U-M. Save My Glass would essentially project a car’s dashboard information through the Google Glass so the driver wouldn’t have to look down to see it. The tool could also use the Glass’s blink sensor to determine if the driver had fallen asleep at the wheel, and if so, vibrate to wake him up. Finally, the tool could use the Glass’s motion sensors to detect a crash and, if one occurred, dial 911.

Google was one of the event’s many sponsors. Baris Yuksel, a senior software engineer there who came from New York to serve as a mentor, was inspired by the hackers’ passion and energy.

“When I look here, I see the future,” Yuksel told the crowd at the awards ceremony. “One of you is going to make the next big thing and the other will make the next, next big thing, and so on. In five years, 10 years you’re going to be the tech kings. You’re going to be awesome. You are awesome.”

Yuksel thanked MHacks organizers who chartered buses to and from schools across the country, and arranged for those beyond driving distance to get airline stipends in order to bring so many students together to create. MHacks organizers urged participants to pay it forward, in a sense.

“This was one of the most incredible weekends of my life,” Thomas Erdman, a junior in computer science and engineering at U-M who led the event, told the crowd. “I hope it was one of the most incredible weekends of yours.

“Go home and spread the culture at your schools,” he continued. “We saw so many problems solved in 36 hours! Imagine what we can do in a month, or a semester.”

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Nicole Casal Moore
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The electrons absorb laser light and set up “momentum combs” (the hills) spanning the energy valleys within the material (the red line). When the electrons have an energy allowed by the quantum mechanical structure of the material—and also touch the edge of the valley—they emit light. This is why some teeth of the combs are bright and some are dark. By measuring the emitted light and precisely locating its source, the research mapped out the energy valleys in a 2D crystal of tungsten diselenide. Credit: Markus Borsch, Quantum Science Theory Lab, University of Michigan.

Mapping quantum structures with light to unlock their capabilities

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