SpaceX CEO Elon Musk launched his red Tesla Roadster electric car on a tour of the Solar System. But did it really orbit Mars?
Category: sustainability – Page 328
British engineering company White Motorcycle Concepts (WMC) has unveiled its revolutionary new electric hybrid scooter – the WMC300FR. The new hybrid three-wheeled scooter is designed especially for use as a fully operational first response vehicle that will help bring emergency services into line with new national objectives to combat the effects of climate change and cost reduction.
The electric scooter uses the same patented technology central to its all-electric WMC250EV high-speed demonstrator, with which it intends to break the world electric land speed record over the next 12 months. In the case of First Responder, however, the key objectives are not so much to achieve ultimate speed as to significantly increase range and viability while reducing CO2 footprint and running costs for emergency service fleets. It can reduce carbon emissions by up to 50% of that of comparable conventional motorcycles and scooters.
The WMC300FR scooter features WMC’s patented Venturi Duct, which reduces drag by pushing air through the vehicle rather than around it. This system is aided by aerodynamic front fenders, which funnel the air towards the venturi, reducing overall frontal resistance and meaning less energy is required to propel the vehicle forward.
It’s not just about emissions: new analysis has found that fossil fuel cars use more resources to make and maintain than electric cars do too.
Ascendance Flight Technologies, based in Toulouse, France, has unveiled the striking design of its new hybrid-electric VTOL aircraft, ATEA, according to a press release.
The ATEA is a five-seat hybrid-electric aircraft that can perform vertical takeoff and landing (VTOL). The concept stands out from the rest since it has a tandem wing configuration with rotors incorporated into them, giving it a strikingly unusual appearance.
The concept is the result of three years of research and development, and it’s called the “tomorrow’s aircraft” since it reflects the company’s goal of assisting in the decarbonization of aviation: The aircraft aims to reduce carbon emissions by 80 percent compared to traditional helicopter designs.
Graphene consists of a planar structure, with carbon atoms connected in a hexagonal shape that resembles a beehive. When graphene is reduced to several nanometers (nm) in size, it becomes a graphene quantum dot that exhibits fluorescent and semiconductor properties. Graphene quantum dots can be used in various applications as a novel material, including display screens, solar cells, secondary batteries, bioimaging, lighting, photocatalysis, and sensors. Interest in graphene quantum dots is growing, because recent research has demonstrated that controlling the proportion of heteroatoms (such as nitrogen, sulfur, and phosphorous) within the carbon structures of certain materials enhances their optical, electrical, and catalytic properties.
Graphene consists of a planar structure, with carbon atoms connected in a hexagonal shape that resembles a beehive. When graphene is reduced to several nanometers (nm) in size, it becomes a graphene quantum dot that exhibits fluorescent and semiconductor properties. Graphene quantum dots can be used in various applications as a novel material, including display screens, solar cells, secondary batteries, bioimaging, lighting, photocatalysis, and sensors. Interest in graphene quantum dots is growing, because recent research has demonstrated that controlling the proportion of heteroatoms (such as nitrogen, sulfur, and phosphorous) within the carbon structures of certain materials enhances their optical, electrical, and catalytic properties.
The Korea Institute of Science and Technology (KIST, President Seok-Jin Yoon) reported that the research team led by Dr. Byung-Joon Moon and Dr. Sukang Bae of the Functional Composite Materials Research Center have developed a technique to precisely control the bonding structure of single heteroatoms in the graphene quantum dot, which is a zero-dimensional carbon nanomaterial, through simple chemical reaction control; and that they identified the relevant reaction mechanisms.
With the aim of controlling heteroatom incorporation within the graphene quantum dot, researchers have previously investigated using additives that introduce the heteroatom into the dot after the dot itself has already been synthesized. The dot then had to be purified further, so this method added several steps to the overall fabrication process. Another method that was studied involved the simultaneous use of multiple organic precursors (which are the main ingredients for dot synthesis), along with the additives that contain the heteroatom. However, these methods had significant disadvantages, including reduced crystallinity in the final product and lower overall reaction yield, since several additional purification steps had to be implemented. Furthermore, in order to obtain quantum dots with the chemical compositions desired by manufacturers, various reaction conditions, such as the proportion of additives, would have to be optimized.
China has announced a plan to create new forests covering 35,000 sq km (14,000 sq mi), an area larger than the country of Belgium, every year for the next five years.
This crystal of iron pyrite, just four hundredths of a millimeter in size, could function as the light absorbing layer of a tiny solar cell – potentially a promising future source of power on the Moon.
Working with Estonia’s Tallinn University of Technology (TalTech), ESA has studied the production of sandpaper-like rolls of such microcrystals as the basis of monograin-layer solar cells.
“We’re looking at these microcrystals in the context of future lunar settlement,” explains ESA advanced manufacturing engineer Advenit Makaya. “Future Moon bases will need to ‘live off the land’ in order to be sustainable, and the iron and sulfur needed to produce pyrite could be retrieved from the lunar surface.”
New innovation can increase the photovoltaic effect of ferroelectric crystals in solar cells by a factor of 1,000.