GOOD

Robotic Fish Leads Schools of Fish Away From Danger

It's always nice when technology helps out the little guy. Researchers at the Polytechnic Institute of New York University have created a robotic fish with the ability to lead schools of fish away from hazards like the dangerous turbines of power plants.

According to Treehugger, this robo-fish follows a string of recent fish-emulating technology created to patrol the ocean for information on pollutants, and scan changing water temperatures. (Scroll down the Treehugger post to see a video of the pollutant-patrolling robo-fish wiggling around in water.)


The latest robot fish co-opts the traits of fish leaders studied by the researchers, including a fast-beating tail, and a tendency to "mill about and accelerate to gain attention." Based on those visual cues, and the flow they perceive, schools of fish follow their newfound leader as if it were the real deal.

Using a shallow, donut-shaped tank and cameras, the NYU-Poly team began a mathematical journey into fish schooling in one-dimensional environments. They recently reported their results from this study in the Journal of the Royal Society Interface. Meanwhile, they built silent, remotely controlled, fish-like robotic swimmers that fit in the palm of a hand. These first robots can "swim" along a plane; the next step is to create robots that can dive and surface. Dr. Porfiri's first technical paper on the robotic fish received the Best Robotics paper award at the 2009 American Society of Mechanical Engineers Conference on Dynamic Systems and Controls.

\n

The tiny-tech heroism of the robot fish could be just the beginning. If properly tailored, the technology and mathematics behind the robotic swimmer has the capacity to lead other animals out of danger's way-say, guiding migrating birds to a more hospital landing place if their usual seasonal destinations have been marred by human impact. Wouldn't it be great if this technology could be used in the Gulf of Mexico right now?

Photo courtesy of NYU-Poly via Treehugger

Articles

Four black women, Engineers Christine Darden and Mary Jackson, mathematician Katherine Johnson, and computer programmer Dorothy Vaughn, worked as "human computers" at NASA during the Space Race, making space travel possible through their complex calculations. Jackson, Johnson, and Vaughn all played a vital role in helping John Glenn become the first American to orbit the Earth.

They worked behind the scenes, but now they're getting the credit they deserve as their accomplishments are brought to the forefront. Their amazing stories were detailed in the book Hidden Figures: The American Dream and the Untold Story of the Black Women Mathematicians Who Helped Win the Space Race by Margot Lee Shetterly, which was later turned into a movie. (Darden was not featured in the movie, but was in the book). Johnson has a building at NASA named after her, and a street in front of NASA's Washington D.C. headquarters was renamed "Hidden Figures Way."

Keep Reading Show less

Between Alexa, Siri, and Google, artificial intelligence is quickly changing us and the way we live. We no longer have to get up to turn on the lights or set the thermostat, we can find the fastest route to work with a click, and, most importantly, tag our friends in pictures. But interacting with the world isn't the only thing AI is making easier – now we can use it save the world, too.

Keep Reading Show less
Good News
Courtesy of John S. Hutton, MD

A report from Common Sense Media found the average child between the ages of 0 and 8 has 2 hours and 19 minutes of screen time a day, and 35% of their screen time is on a mobile device. A new study conducted by the Cincinnati Children's Hospital published in the journal, JAMA Pediatrics, found exactly what all that screen time is doing to your kid, or more specifically, your kid's developing brain. It turns out, more screen time contributes to slower brain development.

First, researchers gave the kids a test to determine how much and what kind of screen time they were getting. Were they watching fighting or educational content? Were they using it alone or with parents? Then, researchers examined the brains of children aged 3 to 5 year olds by using MRI scans. Forty seven brain-healthy children who hadn't started kindergarten yet were used for the study.

They found that kids who had more than one hour of screen time a day without parental supervision had lower levels of development in their brain's white matter, which is important when it comes to developing cognitive skills, language, and literacy.

Keep Reading Show less
Health
via KTVU / YouTube

The 63-year-old Oakland-Alameda Coliseum, currently branded the RingCentral Coliseum, is one of the most decrepit sports venues in America.

The home to the the NFL's Oakland Raiders (until they move to Las Vegas next season) and MLB's A's, is notoriously known as the Black Hole and has made headlines for its frequent flooding and sewage issues.

One of the stadium's few positive aspects is its connection to public transportation.

Keep Reading Show less
Hero Video
via Anadirc / Flickr

We spend roughly one-third of our life asleep, another third at work and the final third trying our best to have a little fun.

But is that the correct balance? Should we spend as much time at the office as we do with our friends and family? One of the greatest regrets people have on their deathbeds is that they spent too much of their time instead of enjoying quality time with friends and family.

Lawmakers in the United Kingdom have made a significant pledge to reevaluate the work-life balance in their country.

Keep Reading Show less
Lifestyle