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Wikidata Lab XXIV - Posicionamento digital relativo.webm

Science · Video

Wikidata Lab XXIV - Posicionamento digital relativo.webm

O Wiki Movimento Brasil (WMB) oferece um treinamento sobre posicionamento digital relativo, com o objetivo de refinar os metadados das fotografias do fotógrafo Werner Haberkorn presentes no acervo do Museu Paulista. Esta apresentação de Éder Porto trata dos desafios e possíveis resultados na utilização de posicionamento digital relativo em imagens dentro do Wikidata e Wikimedia Commons. Página do evento . Organização: Wiki Movimento Brasil Museu Paulista da USP Parceria: Fundação Banco do Brasil Realização: Universidade de São Paulo Fundação de Apoio à Universidade de São Paulo Goethe-Institut

Wikimedia Commons · CC BY 3.0 · ♥ 0

Going Beyond the Lab Bench- Caelin Potts (LLS 2016).webm

Science · Video

Going Beyond the Lab Bench- Caelin Potts (LLS 2016).webm

Laboratory Leadership Service fellow Caelin Potts shares about thriving in a dynamic learning environment and how LLS fellows link laboratory science with logistics planning for urgent public health needs. For more information about CDC’s LLS fellowship, visit www.cdc.gov/lls. Comments on this video are allowed in accordance with our comment policy: https://www.cdc.gov/SocialMedia/Tools/CommentPolicy.html This video can also be viewed at https://www.cdc.gov/lls/videos/lls-potts.wmv

Wikimedia Commons · Public domain · ♥ 0

Снимай науку.webm

Science · Video

Снимай науку.webm

ГБПОУ Уфимский политехнический колледж

Wikimedia Commons · CC BY 4.0 · ♥ 0

CSIRO ScienceImage 3742 Pye Laboratory Wind Tunnel.jpg

Science · Photo

CSIRO ScienceImage 3742 Pye Laboratory Wind Tunnel.jpg

The special low-speed wind tunnel at CMAR's Pye laboratory allows scientists to undertake fundamental studies on how air interacts with the earth's surface. At this 'boundary layer', both smooth and turbulent flows are possible. The wind tunnel is driven by a powerful double-inlet centrifugal fan. Air is blown down the test section, enters the ambient space, and is then recycled. In detail, air flows from the fan through a coarse-flow straightener, a wide-angle diffuser with screens, a fine straightener, a settling chamber with screens, then a contraction, the working section, and finally the outlet diffuser. The working section is 1.8 m wide, 0.9 m high, and 16 m long. Several methods of air-speed control are available, providing high speeds for turbulent boundary-layer studies and very low speeds for experiments on flow over plants. The contraction ratio is 5.5:1, similar to that of a general purpose tunnel.

Wikimedia Commons · CC BY 3.0 · ♥ 0

Curiosity - The Next Mars Rover.jpg

Science · Photo

Curiosity - The Next Mars Rover.jpg

This artist concept features NASA's Mars Science Laboratory Curiosity rover, a mobile robot for investigating Mars' past or present ability to sustain microbial life. Curiosity is being tested in preparation for launch in the fall of 2011. In this picture, the rover examines a rock on Mars with a set of tools at the end of the rover's arm, which extends about 2 meters (7 feet). Two instruments on the arm can study rocks up close. Also, a drill can collect sample material from inside of rocks and a scoop can pick up samples of soil. The arm can sieve the samples and deliver fine powder to instruments inside the rover for thorough analysis. The mast, or rover's "head," rises to about 2.1 meters (6.9 feet) above ground level, about as tall as a basketball player. This mast supports two remote-sensing instruments: the Mast Camera, or "eyes," for stereo color viewing of surrounding terrain and material collected by the arm; and, the ChemCam instrument, which is a laser that vaporizes material from rocks up to about 9 meters (30 feet) away and determines what elements the rocks are made of.

Wikimedia Commons · Public domain · ♥ 0

MSL HeatShield.jpg

Science · Photo

MSL HeatShield.jpg

The finished heat shield for NASA's Mars Science Laboratory, with a diameter of 4.5 meters (14 feet, 9 inches), is the largest ever built for descending through the atmosphere of any planet. This image shows the heat shield and a spacecraft worker at Lockheed Martin Space Systems, Denver, which built and tested the heat shield. The heat shield and the spacecraft's backshell together form an encapsulating aeroshell that will protect the mission's rover, Curiosity, from the intense heat and friction that will be generated as the flight system descends through the Martian atmosphere. The aeroshell has a steering capability produced by ejecting ballast that offsets the center of mass prior to entry into the atmosphere. This offset creates lift as it interacts with the thin Martian atmosphere and allows roll control and autonomous steering through the use of thrusters.

Wikimedia Commons · Public domain · ♥ 0

Msl capsule cruiseStage.jpg

Science · Photo

Msl capsule cruiseStage.jpg

The major components of NASA's Mars Science Laboratory spacecraft—cruise stage atop the aeroshell, which has the descent stage and rover inside—were connected together in October 2008 for several weeks of system testing, including simulation of launch vibrations and deep-space environmental conditions. These components will be taken apart again, for further work on each of them, after the environmental testing. The Mars Science Laboratory spacecraft is being assembled and tested for launch in 2011.

Wikimedia Commons · Public domain · ♥ 0

MSL DescentStage.jpg

Science · Photo

MSL DescentStage.jpg

This image from early October 2008 shows personnel working on the descent stage of NASA's Mars Science Laboratory inside the Spacecraft Assembly Facility at NASA's Jet Propulsion Laboratory, Pasadena, Calif. The descent stage will provide rocket-powered deceleration for a phase of the arrival at Mars after the phases using the heat shield and parachute. When it nears the surface, the descent stage will lower the rover on a bridle the rest of the way to the ground. The larger three of the orange spheres in the descent stage are fuel tanks. The smaller two are tanks for pressurant gas used for pushing the fuel to the rocket engines.

Wikimedia Commons · Public domain · ♥ 0

MSL parachute.jpg

Science · Photo

MSL parachute.jpg

The team developing the landing system for NASA's Mars Science Laboratory tested the deployment of an early parachute design in mid-October 2007 inside the world's largest wind tunnel, at NASA Ames Research Center, Moffett Field, California. In this image, two engineers are dwarfed by the parachute, which holds more air than a 280-square-meter (3,000-square-foot) house and is designed to survive loads in excess of 36,000 kilograms (80,000 pounds). The parachute, built by Pioneer Aerospace, South Windsor, Connecticut, has 80 suspension lines, measures more than 50 meters (165 feet) in length, and opens to a diameter of nearly 17 meters (55 feet). It is the largest disk-gap-band parachute ever built and is shown here inflated in the test section with only about 3.8 meters (12.5 feet) of clearance to both the floor and ceiling. The wind tunnel, which is 24 meters (80 feet) tall and 37 meters (120 feet) wide and big enough to house a Boeing 737, is part of the National Full-Scale Aerodynamics Complex, operated by the U.S. Air Force, Arnold Engineering Development Center.

Wikimedia Commons · Public domain · ♥ 0

MSL-Crusie stage.jpg

Science · Photo

MSL-Crusie stage.jpg

This portion of the Mars Science Laboratory spacecraft, called the cruise stage, will do its work during the flight between Earth and Mars after launch in the fall of 2011.

Wikimedia Commons · Public domain · ♥ 0

Dart impact replay.webm

Space · Video

Dart impact replay.webm

The final five-and-a-half minutes of images leading up to the DART spacecraft's intentional collision with asteroid Dimorphos. The DART spacecraft streamed these images from its DRACO camera back to Earth in real time as it approached the asteroid. This replay movie is 10 times faster than reality, except for the last six images, which are shown at the same rate that the spacecraft returned them. Both Didymos and its moonlet Dimorphos are visible at the start of the movie. At the end, Dimorphos fills the field of view. The final image in the movie shows a patch of Dimorphos that is 51 feet 16 meters) across. DART's impact occurred during transmission of the final image to Earth, resulting in a partial picture at the end of this movie. Didymos is roughly 2,500 feet (780 meters) in diameter; Dimorphos is about 525 feet (160 meters) in length.

Wikimedia Commons · Public domain · ♥ 0