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Large Wing Fillets in F9F Panther Jet Drawing: Interference drag can be minimized by proper wing root fairing and filleting which induces smooth mixing of air past the intersection of wing and fuselage. The figure shows a Grumman F9F Panther Jet with a large degree of filleting. More »« Less
Typical Airplane Wing Configurations Vertical Positions: Compares the high wing, mid wing, and low wing airplane configurations. More »« Less
RS-002 Airliner Concept by the Royal Aeronautical Society: Three Lifting Surfaces Airplane Concept presented by the Royal Aeronautical Society (RAeS) in the context of the 2011 Greener by Design Conference. More »« Less
A child being vaccinated against measles in Kibati - Rwanda: The vaccine was provided by UNICEF, and Save the Children, in a Kibati refugee camp, Rubavu District, Province de l'Ouest, Rwanda. More »« Less
A British doctor examines an African baby at a welfare clinic: This image is part of the Colonial Office photographic collection held at The National Archives UK, uploaded as part of the Africa Through a Lens project.Location: Gold Coast, Ghana, United KingdomDate: January 1957 More »« Less
Primary School Students in Laos: A group of students working together on an assignment at a primary school in a small village in southern Laos. More »« Less
Exterior of IXION Windowless Jet Concept
Cabin Interior of the IXION Windowless Jet Concept Flying Over Paris
Yellow Strap for Cyclist Pants: The color of the strap increases visibility of the cyclist at night. More »« Less
Internal Components of the Copenhagen Wheel for Bicycles: The most prominent components shown are the battery, electric motor, and the gearing. More »« Less
Collapsed vs. Uncollapsed Carrera Foldable C Bike Helmet: Collapsing the helmet reduces its size by over 20%. More »« Less
Reflectance of Sunlight from a House with White Roof in the Winter
Cyclist with Funky Hair - Sketch
Micro USB Cable for Charging the Battery of Hovding Airbag for Cyclists
On-Off Button of Hovding Airbag for Cyclist: The zip tag button is attached to the collar before riding to turn on the Hovding. More »« Less
Tattoo Artist Performing Skin Cancer Check After Training from Tatuador Consciente
Bus Lane on Broadway - New York
Earth's Greenhouse Effect - Diagram: Greenhouse gases absorb some of the heat radiated from the Earth, and emit it back to the Earth surface. More »« Less
Global Average Temperature From 1880 to 2014 - Graph: The black line is the annual mean; the red line is the five-year running mean; and, the green bars show uncertainty estimates. The graph shows an increase of over to 0.85 deg.C from 1880 to 2014. More »« Less
Dove Lake in Tasmania: Located in the Cradle Mountain-Lake St Clair National Park, Tasmania, Australia. More »« Less
Human Eye
Minimum Concentration of Ozone Recorded Each Year from 1979 to 2013: The sharp reduction of ozone levels in the 80's was halted in the 90's with the phasing out of major ozone depleting substance (i.e. CFCs and halons). More »« Less
Ozone Layer Concentrations Over North America had CFCs Not Been Banned 1974-2060: NASA's model predicts that an ozone "hole" would have formed over the Arctic by 2020 (in addition to the one over antarctica), had the Montreal Protocol not been signed (banning Chlorofluorocarbons). By 2040, the ozone hole would have been global. More »« Less
Global CFC and HCFC Emissions Estimates Using WMO's 2010 Data: Includes historic data for emission of ozone depleting substances CFCs (Chlorofluorocarbon) and HCFCs (Hydrochlorofluorocarbons), as well as projections until year 2060 based on controls imposed by The Montreal Protocol. HCFC consumption increase until 2013, as it was allowed as an interim substitute of CFC. From then on consumption of both substances is mandated to decline. More »« Less

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