You may have flown a flight simulator in a computer game or at a science museum. Landing without crashing is always the hardest part. But that's nothing compared to the challenge that engineers are facing to develop a flight ...
Space Exploration
5 hours ago
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42
Researchers led by Satoshi Kamiguchi at the RIKEN Center for Sustainable Resource Science (CSRS) in Japan have discovered a greener way to produce ammonia, an essential compound used in fertilizers.
Analytical Chemistry
21 hours ago
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116
The global food crisis is increasing due to rapid population growth and declining food productivity from climate change. Moreover, today's food production and supply system emits a huge amount of carbon dioxide, reaching ...
Cell & Microbiology
Apr 12, 2024
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26
New options for making finely structured soft, flexible and expandable materials called hydrogels have been developed by researchers at Tokyo University of Agriculture and Technology (TUAT).
Nanomaterials
Apr 11, 2024
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9
A team from UNIGE, together with ETH Zurich and NCHU in Taiwan, has developed a rice line that has enhanced vitamin B1 content.
Biotechnology
Apr 11, 2024
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48
Seven years from now, in April 2031, ESA's Juice mission will fly past Jupiter's moon Callisto, offering scientists a tantalizing glimpse at the mysterious, cratered alien world.
Astronomy
Apr 11, 2024
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60
Shuffling across the carpet to zap a friend may be the oldest trick in the book, but on a deep level that prank still mystifies scientists, even after thousands of years of study.
Polymers
Apr 10, 2024
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51
Since the 1970s, modern antibiotic discovery has been experiencing a lull. Now the World Health Organization has declared the antimicrobial resistance crisis as one of the top 10 global public health threats.
Cell & Microbiology
Apr 8, 2024
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48
Substituting plastics with alternative materials is likely to result in increased GHG emissions, according to research from the University of Sheffield.
Environment
Apr 8, 2024
5
202
Since the 1950s, the surge in global plastic production has paralleled a concerning rise in plastic waste. In the United States alone, a staggering 35 million tons of plastic waste were generated in 2017, with only a fraction ...
Biochemistry
Apr 8, 2024
0
1
An engine is a mechanical device that produces some form of output from a given input. An engine whose purpose is to produce kinetic energy output from a fuel source is called a prime mover; alternatively, a motor is a device which produces kinetic energy from other forms of energy (such as electricity, a flow of hydraulic fluid or compressed air). A motor car (automobile) has a starter motor and motors to drive pumps (fuel, power steering, etc) – but the power plant that propels the car is called an engine. The term 'motor' was originally used to distinguish the new internal combustion engine -powered vehicles from earlier vehicles powered by a steam engine (as in steam roller and motor roller).
Military engines included siege engines, large catapults, trebuchets and battering rams.
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