Archive for the ‘sustainability’ category: Page 7

Apr 27, 2022

Transparent solar panels could replace windows in the future. Here’s how

Posted by in categories: solar power, sustainability

Apr 27, 2022

Honeycomb-like nanopatterning boosts efficiency of ultrathin solar panels

Posted by in categories: nanotechnology, solar power, sustainability

“Hyperuniform disordered” design delivers 66.5% solar absorption.

Apr 27, 2022

Solar 3.0: This New Technology Could Change Everything

Posted by in categories: energy, sustainability

Perovskite solar cells might revolutionize how humans generate energy from sunlight.
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In this video we’ll explore the world’s fastest improving new solar technology, and provide an exclusive peek inside the lab of a team working on this breakthrough material.

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Apr 26, 2022

High school students design a bottle that turns seawater into drinking water

Posted by in categories: biotech/medical, engineering, sustainability

Mangrove trees inspire thermal and membrane-based desalination system.

Four US students, taking part in a program aimed at high school girls interested in engineering, have designed a desalinating water bottle. The currently hypothetical device would be compact and portable so could offer increased accessibility over existing desalinating designs that mimic transpiration.

Laurel Hudson, Gracie Cornish, Kathleen Troy and Maia Vollen met at Virginia Tech’s C-Tech2 program where they were given an assignment to ‘reinvent the wheel’. Choosing to focus on the global water crisis and inspired by drinking straws used by hikers to purify water, they considered if it was possible to make a bottle that produced drinking water from seawater. They reached out to Jonathan Boreyko, an associate professor in the department of mechanical engineering, who was researching synthetic trees at the time. He agreed to help, and, during the height of the Covid-19 pandemic, the group met virtually at night to discuss their research. Along with Ndidi Eyegheleme, a graduate student in Boreyko’s lab, they planned and produced a model to evaluate the inner workings of their design.

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Apr 26, 2022

Recycled glass waste used as sand replacement in 3D printing

Posted by in categories: 3D printing, climatology, sustainability

Researchers from Nanyang Technological University, Singapore (NTU Singapore) have developed the capability to use recycled glass in 3D printing, opening doors to a more environmentally sustainable way of building and construction.

Glass is one material that can be 100% recycled with no reduction in quality, yet it is one of the least recycled waste types. Glass is made up of silicon dioxide, or silica, which is a major component of sand, and therefore it offers significant untapped potential to be recycled into other products.

At the same time, due to growing populations, urbanization and , the world is facing a shortage of sand, with calling it one of the greatest sustainability challenges of the 21st century.

Apr 25, 2022

When Will Humanity Become a Type I Civilization?

Posted by in categories: solar power, space, sustainability

Can humanity become a Type I civilization without causing our own Great Filter?

There are several ways we can measure the progress of human civilization. Population growth, the rise and fall of empires, our technological ability to reach for the stars. But one simple measure is to calculate the amount of energy humans use at any given time. As humanity has spread and advanced, our ability to harness energy is one of our most useful skills. If one assumes civilizations on other planets might possess similar skills, the energy consumption of a species is a good rough measure of its technological prowess. This is the idea behind the Kardashev Scale.

Russian astrophysicist Nikolai Kardashev proposed the scale in 1964. He categorized civilizations into three types: planetary, stellar, and galactic. A Type I species is able to harness energy on a scale equal to the amount stellar energy that reaches its home planet. Type II species can harness energy on the scale of its home star, and Type III can harness the energy of its home galaxy. The idea was further popularized by Carl Sagan, who suggested a continuous scale of measurement rather than simply three types.

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Apr 25, 2022

SOURCE Hydropanels make clean drinking water out of thin air

Posted by in category: sustainability

This sustainable water technology represents a proven path to low-cost, safe, renewable drinking water.

Apr 25, 2022

Clean energy met a record-breaking 38 percent of global power demand in 2021

Posted by in categories: energy, sustainability

Apr 25, 2022

German company BayWa r.e. will next month switch to a floating solar power plant it has built on a quarry lake

Posted by in categories: solar power, sustainability

a rapidly-installed, renewable technology it says could help wean the country off fossil fuels

Apr 25, 2022

High-flying kites could power your home with wind energy

Posted by in categories: energy, sustainability

Kitekraft discusses airborne wind turbines as well as the sustainability of kite-powered systems that are lightweight and have a lower carbon impact.

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