Category: Engineering

hydropower dam Engineering Environment 

Are Hydropower Dams the Future of Energy?

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By Emily Folk @EmilySFolk Growing concerns about fossil fuels—especially their potential contributions to pollution and global warming—have individuals and governments around the globe looking for alternative sources of power. Hydropower is one of the oldest sources of electricity, already responsible for generating around 52 percent of the United States’ renewable electricity generation according to the National Hydropower Association. Hydroelectric dams are seen as some of the best options available. However, there are challenges that hydropower will need to overcome—otherwise, they may prevent the energy source’s widespread adoption. Current state of…

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Engineering Physics STEM Education 

The Simple Machines in Your Life

Science Connected

Simple machines allow us to do more work with less effort. In this episode, Sophie explains what simple machines are and how we use them to make our lives easier every day. Get to know your friendly neighborhood inclined plane, lever, wedge, and a head of lettuce and join Sophie in a fun science experiment. Fun with simple machines With a few items from around the house, you can join Sophie in a fun science experiment. Here at Science Connected, we love inexpensive kitchen science experiments! To do Sophie’s experiment…

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Bioelectronic “Nose” Sniffs Out Food Spoilage Biology Engineering 

Bioelectronic “Nose” Sniffs Out Rotten Food

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Does that food smell rotten? Researchers have developed a way to detect rotten food odors that are too faint for the human nose. By Emily Rhode One whiff of spoiled meat is usually enough to let us know that we should definitely not eat it. But what about those leftovers that have been in the refrigerator for a few days and still smell ok? We could throw them away out of an abundance of caution, but that becomes an expensive and wasteful practice. Or we could cross our fingers and…

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New Futuristic Fabrics to Keep Cool Engineering New Technologies 

New Futuristic Fabrics to Keep Cool

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By Katherine Lindemann Inspired by lithium batteries and kitchen plastic wrap, engineers at Stanford University have developed a plastic material that helps the body radiate heat, lowering skin temperature and cooling the wearer. To be suitable for clothing, the material is flexible and—importantly—opaque. The teams are now working on a woven version of the textile. Po-Chun Hsu contributed to the research as a member of the Yi Cui research group. We asked him to tell us more. ResearchGate: Where did the idea for this material come from? Po-Chun Hsu: The…

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graphene Engineering New Technologies 

Moth Eyes Inspire Graphene-Based Smart Tech

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Look into the eyes of moths and see the future. The future of smart gadgets, that is. Moths’ eyes are the latest inspiration for thin solar material. Researchers from the University of Surrey’s Advanced Technology Institute say that new, ultra-thin, patterned graphene sheets will be essential in designing “smart wallpaper” and other future technologies. Graphene is traditionally an excellent electronic material, as the graphene-based microphone demonstrates, but it is inefficient for optical applications. It usually absorbs only 2 or 3 percent of the light that lands on it. That’s not…

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conductive concrete Engineering Physics 

Conductive Concrete May End Flight Delays

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By Emily Rhode @riseandsci Every year, thousands of flights are delayed and thousands of car accidents happen due to snowstorms and icy road conditions. Millions of dollars are spent each year plowing and de-icing runways, tarmacs, roadways, and bridges. Salt and plowing cause damage to roadways and waterways, and shoveling heavy snow causes injuries and deaths. Flight Delays (and Snow Days) Could be Things of the Past, Thanks to Science The Federal Aviation Administration (FAA) is very interested in a special type of conductive concrete made by researchers at the…

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tiny house, off-grid living, Nice Architects Engineering Environment New Technologies 

Egg-Shaped Tiny House to Revolutionize Off-Grid Living

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By Jonathan Trinastic If you spot Nice Architects’ Ecocapsule while hiking through the woods or turning the corner from your campsite, you may think you’ve come upon an alien spacecraft or advanced military technology. Deep blue solar cells pattern its sleek surface, glistening in the sun. A curving wind turbine stretches toward the sky. This lustrous, egg-shaped capsule is no military secret, but could be a revolutionary solution to self-sufficient housing powered by renewable energy. A Tiny Friend of the Earth Surprise is usually the first reaction to the Ecocapsule’s…

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Batteries: Image: MotorBlog.com Engineering New Technologies Physics 

Small Step for Batteries, Giant Leap for Electric Cars

Science Connected

By Jonathan Trinastic @jptrinastic Solving the Silicon Swelling Problem in Batteries The dream of an electric transportation revolution—recharging stations dotting rural highways, noiseless sedans gliding across pavement—lives in the minds of many who hope to move beyond oil dependence. But the reality of this transformation will elude us until battery technology improves. Expensive and overweight, current lithium-ion (Li-ion) battery technology cannot support long car trips and would require lower costs to be commercially viable. Now, the ignition for such a revolution may be arriving in the form of silicon. New…

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