BladeBUG Robots Clean Massive Wind Turbine Blades ‘There were the cleaners, with large padded feet, who were apparently polishing their way the whole length…’ — Arthur C. Clarke, 1972.
IceBot Antarctic (Planetary?) Robotic Explorers Made Of Ice ‘Some will combine in place to form more complicated structures, like excavators or centipedes.’ — Greg Bear, 2015.
Study: Robots Encourage Humans To Take Risks Not exactly Three Laws compliant.
Over the past few years, researchers have been trying to develop new designs for perovskite solar cells that could improve their performance, efficiency and stability over time. One possible way of achieving this is to combine 2-D and 3D halide perovskites in order to leverage the advantageous properties of these two different types of perovskites.
The two-dimensional crystal structure of 2-D halide perovskites is highly resistant to moisture; thus, it could help to increase the performance and durability of solar cells with a light-absorbing 3D halide perovskite layer. However, most of the strategies for combining 2-D and 3D halide perovskites proposed so far simply entail mixing these two materials together (e.g., mixing 2-D precursors with a solution-based 3D perovskite or reacting 2-D precursor solutions on top of a 3D perovskite layer).
Researchers at Seoul National University and Korea University have recently devised an alternative approach for creating solar cells that combine 2-D and 3D halide perovskites. This approach, outlined in a paper published in Nature Energy, could help to simultaneously improve both the efficiency and long-term stability of these cells.
This eco village is 100% self-sufficient
Solar powered yacht. 😃
Pierpaolo Lazzarini designs the ‘Pagurus’, a solar-powered amphibious catamaran. via: Myshify.
Using ocean/sea waves for power. 😃
This is the Eco Wave Power, an innovative and affordable technology that produces clean, renewable energy from ocean waves. (More info: https://youtu.be/BrDua3j1U3M)
Circa 2020
The acute problem of eutrophication increasing in the environment is due to the increase of industrial wastewater, synthetic nitrogen, urine, and urea. This pollutes groundwater, soil and creates a danger to aquatic life. Therefore, it is advantageous to use these waste materials in the form of urea as fuel to generate power using Microbial Fuel Cell (MFC). In this work, we studied the compost soil MFC(CSMFC) unlike typical MFC with urea from the compost as fuel and graphite as a functional electrode. The electrochemical techniques such as Cyclic Voltammetry, Chronoamperometry are used to characterise CSMFC. It is observed that the CSMFC in which the compost consists of urea concertation of 0.5 g/ml produces maximum power. Moreover, IV measurement is carried out using polarization curves in order to study its sustainability and scalability. Bacterial studies were also playing a significant role in power generation. The sustainability study revealed that urea is consumed in CSMFC to generate power. This study confirmed that urea has a profound effect on the power generation from the CSMFC. Our focus is to get power from the soil processes in future by using waste like urine, industrial wastewater, which contains much amount of urea.
SONDORS has just pulled up the curtain on its first-ever electric motorcycle, the SONDORS Metacycle. The new commuter electric motorcycle may just be the first truly low-cost electric motorcycle capable of both city and highway riding.
Of course terms like “affordable” and “low-cost” will always be relative.
But to put things in perspective, we live in a world where the $29799 Harley-Davidson LiveWire is considered largely a commuter electric motorcycle, though with enough power for some impressive drag races as well.
Engineers at MIT and Imperial College London have developed a new way to generate tough, functional materials using a mixture of bacteria and yeast similar to the “kombucha mother” used to ferment tea.
Using this mixture, also called a SCOBY (symbiotic culture of bacteria and yeast), the researchers were able to produce cellulose embedded with enzymes that can perform a variety of functions, such as sensing environmental pollutants. They also showed that they could incorporate yeast directly into the material, creating “living materials” that could be used to purify water or to make “smart” packaging materials that can detect damage.
“We foresee a future where diverse materials could be grown at home or in local production facilities, using biology rather than resource-intensive centralized manufacturing,” says Timothy Lu, an MIT associate professor of electrical engineering and computer science and of biological engineering.
One of electric aviation’s greatest challenges (beyond safety certification) is mass production. Designing a working prototype is now table stakes in this industry. As Tesla found out, heavy manufacturing at scale can easily bankrupt even the most well-funded companies.
To solve this problem, Archer turned to Fiat Chrysler Automobiles (FCA), which produces about 4 million cars per year at its 100 manufacturing facilities and 40 R&D centers. FCA described it as a mutually beneficial arrangement: It gains experience electrifying vehicles (where it lags behind), and Archer gains access to low-cost manufacturing expertise. FCA already helped design the aircraft’s cockpit and will allow the production of “thousands of aircraft” per year, according to a company spokesperson. The first aircraft is scheduled to be revealed in early 2021 with the first public flights in 2024.
Delays are likely given the complexity of launching, literally, a new vehicle. But the announcement fulfills the initial prediction made last year by John Hansman, director of MIT’s International Center for Air Transportation: “You’ve seen some shakeup in electric aviation, but also see it get closer to reality” in 2020, he said. “It’s clear there will be the emergence of a new class of electric airplanes. In 2021, you’ll see hybrid and battery aircraft in service or close to being in service.”
