Robotics
Psychologists use mazes to assess the learning capacity of mice or rats. But how about robots? Can they learn to navigate the twists and turns of a labyrinth? Now, researchers at the Eindhoven University of Technology (TU/e) ...
Dec 13, 2021
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80
Internet
The economic fallout from the COVID-19 pandemic has caused an unprecedented crisis in journalism that could decimate media organizations around the world.
May 6, 2020
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24
Electronics & Semiconductors
Researchers have created a robot capable of conducting experiments more efficiently and sustainably to develop a range of new semiconductor materials with desirable attributes. The researchers have already demonstrated that ...
Jul 25, 2023
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79
Other
We have accepted the use of artificial intelligence (AI) in complex processes—from health care to our daily use of social media—often without critical investigation, until it is too late. The use of AI is inescapable ...
Jan 19, 2022
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33
Electronics & Semiconductors
Solar energy is critical for a clean-energy future. Traditionally, solar energy is harvested using silicon—the same semiconductor material used in everyday electronic devices. But silicon solar panels have drawbacks: for ...
Jul 10, 2024
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27
Robotics
The skin of cephalopods, such as octopuses, squids and cuttlefish, is stretchy and smart, contributing to these creatures' ability to sense and respond to their surroundings. A Penn State-led collaboration has harnessed these ...
Jun 13, 2022
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49
Robotics
Mantis shrimp pack the strongest punch of any creature in the animal kingdom. Their club-like appendages accelerate faster than a bullet out of a gun and just one strike can knock the arm off a crab or break through a snail ...
Aug 25, 2021
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354
Energy & Green Tech
In a computational study leveraging artificial intelligence (AI), scientists at the U.S. Department of Energy's (DOE) Argonne National Laboratory have assessed 160 billion molecules, a number exceeding the people born in ...
Jan 10, 2024
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122
Internet
Google warned on Monday that the Australian government's plan to make digital giants pay for news content threatens users' free services in Australia and could result in their data being given to media organizations.
Aug 17, 2020
2
30
Energy & Green Tech
Due to the recent improvements in the efficiency with which solar cells made from organic (carbon-based) semiconductors can convert sunlight into electricity, improving the long-term stability of these photovoltaic devices ...
Apr 19, 2023
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91
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
