File:Brad Call watches a trebuchet in action (16561923063).jpg
Original file (2,817 × 4,255 pixels, file size: 6.54 MB, MIME type: image/jpeg)
Captions
Summary
[edit]DescriptionBrad Call watches a trebuchet in action (16561923063).jpg | Brad Call, a design chief with the U.S. Army Corps of Engineers Sacramento District, watches a student-made type of catapult called a trebuchet at Folsom High School's Eighth Annual Engineering Challenge April 17, 2015, in Folsom, California. Student projects included: hovercrafts, catapults, Tesla coils, electromagnetic propulsion devices, pneumatic wind turbines, hydrogen fuel cells, solar electric boats and cars, gene transformation, and orthopedic implants. (U.S. Army photo by Todd Plain/Released) |
Date | |
Source | Brad Call watches a trebuchet in action |
Author | U.S. Army Corps of Engineers Sacramento District |
Camera location | 38° 38′ 54.18″ N, 121° 09′ 26.36″ W | View this and other nearby images on: OpenStreetMap | 38.648382; -121.157323 |
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Licensing
[edit]Public domainPublic domainfalsefalse |
This image or file is a work of a U.S. Army Corps of Engineers soldier or employee, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain.
English | italiano | Nederlands | پښتو | русский | sicilianu | slovenščina | Türkçe | українська | +/− |
This image was originally posted to Flickr by USACE-Sacramento District at https://flickr.com/photos/52057813@N07/16561923063. It was reviewed on 12 October 2016 by FlickreviewR and was confirmed to be licensed under the terms of the United States Government Work. |
12 October 2016
File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 04:15, 12 October 2016 | 2,817 × 4,255 (6.54 MB) | Vanished Account Byeznhpyxeuztibuo (talk | contribs) | Transferred from Flickr via Flickr2Commons |
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Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Camera manufacturer | NIKON CORPORATION |
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Camera model | NIKON D5100 |
Author | Todd Plain |
Copyright holder |
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Exposure time | 1/500 sec (0.002) |
F-number | f/11 |
ISO speed rating | 250 |
Date and time of data generation | 11:36, 17 April 2015 |
Lens focal length | 18 mm |
Credit/Provider | U.S. Army photo by Todd Plain/Released |
City shown | Folsom |
Orientation | Normal |
Horizontal resolution | 600 dpi |
Vertical resolution | 600 dpi |
Software used | Adobe Photoshop Lightroom 4.4 (Windows) |
File change date and time | 14:52, 17 April 2015 |
Exposure Program | Normal program |
Exif version | 2.3 |
Date and time of digitizing | 11:36, 17 April 2015 |
APEX shutter speed | 8.965784 |
APEX aperture | 6.918863 |
APEX exposure bias | 0 |
Maximum land aperture | 3.6 APEX (f/3.48) |
Metering mode | Pattern |
Light source | Unknown |
Flash | Flash did not fire |
DateTimeOriginal subseconds | 9 |
DateTimeDigitized subseconds | 9 |
Color space | sRGB |
Sensing method | One-chip color area sensor |
File source | Digital still camera |
Scene type | A directly photographed image |
Custom image processing | Normal process |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1 |
Focal length in 35 mm film | 27 mm |
Scene capture type | Standard |
Scene control | None |
Contrast | Normal |
Saturation | Normal |
Sharpness | Normal |
Subject distance range | Unknown |
Serial number of camera | 3295759 |
Lens used | 18.0-55.0 mm f/3.5-5.6 |
Date metadata was last modified | 07:56, 17 April 2015 |
Unique ID of original document | 5492DB07DE82F3C1A7084C862DF8538A |
Copyright status | Copyright status not set |
Keywords |
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Contact information | spk-pao@usace.army.mil
1325 J Street Sacramento, California, 5814-2922 United States of America |
Province or state shown | California |
Country shown | United States of America |
Sublocation of city shown | Folsom High School |
IIM version | 4 |