Engineering
With the market for wearable electric devices growing rapidly, stretchable solar cells that can function under strain have received considerable attention as an energy source. To build such solar cells, it is necessary that ...
Jan 4, 2024
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86
Robotics
Scientists are working on diagnostic techniques that could sniff out chemical compounds from breath, sweat, tears and other bodily emissions and that act as fingerprints of thousands of diseases.
Jun 30, 2022
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52
Electronics & Semiconductors
In a single day, enough sunlight strikes Earth to power the world for an entire year—that is, if we can find a way to capture that energy cheaply and efficiently. While the cost of solar energy has decreased dramatically, ...
Aug 11, 2022
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265
Engineering
Scientists at the RIKEN Center for Biosystems Dynamics Research (BDR) in Japan have developed the first microchip valve powered by living cells. Earthworm muscle tissue allowed for a high contractile force that could be sustained ...
Jul 9, 2019
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156
Business
Logitech has struck a deal to lease a large building in San Jose, a transaction that marks a welcome tech company expansion poised to bring jobs to the Bay Area's largest city.
Jul 7, 2022
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27
Engineering
(Tech Xplore)—WeRobotics have a drone plan to drop sterilized male mosquitos, in an experiment focused on bringing down the mosquito population and in turn reducing the numbers of people who die from diseases they carry.
Engineering
Engineers in Melbourne have developed a cost-effective and environmentally friendly way to remove heavy metals, including copper and zinc, from biosolids.
Jun 21, 2023
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14
Energy & Green Tech
When Doc Brown fed his DeLorean food scraps in Back to the Future as fuel, it seemed like crazy science fiction.
May 3, 2023
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49
Electronics & Semiconductors
A research team led by Professor Kyoseung Sim in the Department of Chemistry at UNIST has achieved a milestone in sustainable wearable devices. Their cutting-edge method enables closed-loop recycling of organic electronic ...
Dec 13, 2023
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46
Electronics & Semiconductors
A research team from Nuremberg and Erlangen has set a new record for the power conversion efficiency of organic photovoltaic (OPV) modules. The scientists designed an OPV module with an efficiency of 12.6 percent over an ...
Nov 12, 2019
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13
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
