antenna (biology) wikipedia - EAS
Antenna (biology) - Wikipedia
https://en.wikipedia.org/wiki/Antenna_(biology)WebThe three basic segments of the typical insect antenna are the scape or scapus (base), the pedicel or pedicellus (stem), and finally the flagellum, which often comprises many units known as flagellomeres. The pedicel (the second segment) contains the Johnston's organ which is a collection of sensory cells. [citation needed]The scape is mounted in a socket …
Dipole antenna - Wikipedia
https://en.wikipedia.org/wiki/Dipole_antennaWebA half-wave dipole antenna consists of two quarter-wavelength conductors placed end to end for a total length of approximately L = λ/2.The current distribution is that of a standing wave, approximately sinusoidal along the length of the dipole, with a node at each end and an antinode (peak current) at the center (feedpoint): = ,where k = 2π/λ and z runs from …
Quantum biology - Wikipedia
https://en.wikipedia.org/wiki/Quantum_biologyWebQuantum biology is the study of applications of quantum mechanics and theoretical chemistry to aspects of biology that cannot be accurately described by the classical laws of physics. ... Light excites electrons in an antenna. The excitation then transfers through various proteins in the FMO complex to the reaction center to further ...
Rosetta (spacecraft) - Wikipedia
https://en.wikipedia.org/wiki/Rosetta_(spacecraft)WebRosetta was a space probe built by the European Space Agency launched on 2 March 2004. Along with Philae, its lander module, Rosetta performed a detailed study of comet 67P/Churyumov–Gerasimenko (67P). During its journey to the comet, the spacecraft performed flybys of Earth, Mars, and the asteroids 21 Lutetia and 2867 Šteins. It was …
Emerald cockroach wasp - Wikipedia
https://en.wikipedia.org/wiki/Emerald_cockroach_waspWebThe emerald cockroach wasp or jewel wasp (Ampulex compressa) is a solitary wasp of the family Ampulicidae.It is known for its unusual reproductive behavior, which involves stinging a cockroach and using it as a host for its larvae.It thus belongs to …
Kármán vortex street - Wikipedia
https://en.wikipedia.org/wiki/Kármán_vortex_streetWebIn fluid dynamics, a Kármán vortex street (or a von Kármán vortex street) is a repeating pattern of swirling vortices, caused by a process known as vortex shedding, which is responsible for the unsteady separation of flow of a fluid around blunt bodies.. It is named after the engineer and fluid dynamicist Theodore von Kármán, and is responsible for such …
Lidar - Wikipedia
https://en.wikipedia.org/wiki/LidarWebLidar (/ ˈ l aɪ d ɑːr /, also LIDAR, or LiDAR; sometimes LADAR) is a method for determining ranges (variable distance) by targeting an object or a surface with a laser and measuring the time for the reflected light to return to the receiver. It can also be used to make digital 3-D representations of areas on the Earth's surface and ocean bottom of the intertidal and …
Gizmodo | Tech. Science. Culture.
https://gizmodo.comWebWe come from the future.
Beam - Wikipedia
https://en.wikipedia.org/wiki/BeamWebStreams of particles or energy. Light beam, or beam of light, a directional projection of light energy . Laser beam; Particle beam, a stream of charged or neutral particles . Charged particle beam, a spatially localized group of electrically charged particles . Cathode ray, or electron beam or e-beam, streams of electrons observed in discharge tubes; X-ray …
Lifestyle | Daily Life | News | The Sydney Morning Herald
https://www.smh.com.au/lifestyleWebThe latest Lifestyle | Daily Life news, tips, opinion and advice from The Sydney Morning Herald covering life and relationships, beauty, fashion, health & wellbeing