Energy & Green Tech
Zero emissions and, soon, zero crew: the world's first fully electric autonomous cargo vessel was unveiled in Norway, a small but promising step toward reducing the maritime industry's climate footprint.
Nov 19, 2021
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18931
Engineering
In a step closer to skyscrapers that serve as power sources, a team led by University of Michigan researchers has set a new efficiency record for color-neutral, transparent solar cells.
Aug 17, 2020
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Engineering
Scientists have found that concrete's compressive strength can be increased by 4.1% and its flexural strength by 3.4% by adding a small amount of coconut shell (only 5%). The material's performance increased by 6.1% compared ...
Oct 10, 2023
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151
Energy & Green Tech
The latest trend in cargo shipping has roots in a concept that's been around a while. Say, 7,000 years or so.
Engineering
Indoor air pollution may have met its match. Today, scientists will report that they have designed catalyst-coated lampshades that transform indoor air pollutants into harmless compounds. The lampshades work with halogen ...
Aug 16, 2023
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75
Energy & Green Tech
Over the past few years, engineers have created increasingly advanced technologies to produce and store energy more sustainably. Solar cells made of organic molecules or polymers are among the most promising sustainable energy ...
Consumer & Gadgets
The video conferencing app Zoom gained about 2 million new users in the first two months of 2020—and that was before the World Health Organization declared the coronavirus outbreak a pandemic. With so many people now relying ...
May 4, 2020
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Energy & Green Tech
In 2016, experts writing in Nature listed seven breakthroughs in how we process chemicals that could change the world for the better. We believe we've just ticked one of those off the list.
Jul 15, 2022
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238
Machine learning & AI
The first question many people ask about artificial intelligence (AI) is, "Will it be good or bad?"
Jul 28, 2020
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60
Engineering
By expanding on existing designs for electrodes of ultra-thin solar panels, Stanford researchers and collaborators in Korea have developed a new architecture for OLED—organic light-emitting diode—displays that could enable ...
Oct 22, 2020
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200
In biology, an organism is any living system (such as animal, plant, fungus, or micro-organism). In at least some form, all organisms are capable of response to stimuli, reproduction, growth and development, and maintenance of homeostasis as a stable whole. An organism may either be unicellular (single-celled) or be composed of, as in humans, many billions of cells grouped into specialized tissues and organs. The term multicellular (many-celled) describes any organism made up of more than one cell.
The terms "organism" (Greek ὀργανισμός - organismos, from Ancient Greek ὄργανον - organon "organ, instrument, tool") first appeared in the English language in 1701 and took on its current definition by 1834 (Oxford English Dictionary).
Scientific classification in biology considers organisms synonymous with life on Earth. Based on cell type, organisms may be divided into the prokaryotic and eukaryotic groups. The prokaryotes represent two separate domains, the Bacteria and Archaea. Eukaryotic organisms, with a membrane-bounded cell nucleus, also contain organelles, namely mitochondria and (in plants) plastids, generally considered to be derived from endosymbiotic bacteria. Fungi, animals and plants are examples of species that are eukaryotes.
More recently a clade, Neomura, has been proposed, which groups together the Archaea and Eukarya. Neomura is thought to have evolved from Bacteria, more specifically from Actinobacteria.
This text uses material from Wikipedia, licensed under CC BY-SA
