File:Picture of the first 'wall formula' in the city of Utrecht 01.jpg
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Summary edit
DescriptionPicture of the first 'wall formula' in the city of Utrecht 01.jpg |
English: This is the 8th wall formula in the Netherlands (the first 7 are in Leiden) and was painted by the Dutch artist collective De Strakke Hand. This Utrecht one is very different in style than the Leiden ones and depicts an experiment to test a formula, rather than the formula itself. The Doppler effect is the phenomenon that sounds (or light) changes its frequency to the observer if the source has a non-zero velocity (to or fro) relative to the observer. It is known to everyone who has heard an ambulance pass by. Prof. Buys Ballot tested it using a horn blower on a train in 1845.
The formula in the painting: Nederlands: Illustratie van de demonstratie van het Doppler effect door Buys Ballot in 1845. Op een trein die reed over de spoorlijn tussen Utrecht en Maarssen zette Buys Ballot koperblazers. Waarnemers langs de spoorlijn noteerden het verschil in toonhoogte tijdens het passeren van de trein. Deze gevelschildering brengt dit in beeld en is in 2019 aangebracht aan de Burgemeester Reigerstraat in Utrecht. De schildering is gemaakt door kunstenaarscollectief De Strakke Hand.
de formule in de muurschildering: |
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Date | ||
Source | Own work | |
Author | Sense Jan van der Molen | |
Other versions |
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Camera location | 52° 05′ 24.99″ N, 5° 08′ 02.99″ E | View this and other nearby images on: OpenStreetMap | 52.090275; 5.134164 |
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references are: www.wallformulas.org, www.muurformules.nl and www.utrechtsemuurformules.nl
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 11:05, 22 October 2019 | 4,032 × 3,024 (2.01 MB) | Sensemolen (talk | contribs) | User created page with UploadWizard |
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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 | Apple |
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Camera model | iPhone 6s |
Exposure time | 1/864 sec (0.0011574074074074) |
F-number | f/2.2 |
ISO speed rating | 25 |
Date and time of data generation | 15:27, 19 October 2019 |
Lens focal length | 4.15 mm |
Latitude | 52° 5′ 24.99″ N |
Longitude | 5° 8′ 2.99″ E |
Altitude | 4.893 meters above sea level |
Orientation | Normal |
Horizontal resolution | 72 dpi |
Vertical resolution | 72 dpi |
Software used | 13.1.2 |
File change date and time | 15:27, 19 October 2019 |
Y and C positioning | Centered |
Exposure Program | Normal program |
Exif version | 2.31 |
Date and time of digitizing | 15:27, 19 October 2019 |
Meaning of each component |
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APEX shutter speed | 9.7553954189492 |
APEX aperture | 2.2750070475475 |
APEX brightness | 10.085829188274 |
APEX exposure bias | 0 |
Metering mode | Pattern |
Flash | Flash did not fire, compulsory flash suppression |
DateTimeOriginal subseconds | 084 |
DateTimeDigitized subseconds | 084 |
Supported Flashpix version | 1 |
Color space | sRGB |
Sensing method | One-chip color area sensor |
Scene type | A directly photographed image |
Exposure mode | Auto exposure |
White balance | Auto white balance |
Digital zoom ratio | 1.5882352941176 |
Focal length in 35 mm film | 46 mm |
Scene capture type | Standard |
Speed unit | Kilometers per hour |
Speed of GPS receiver | 0 |
Reference for direction of image | True direction |
Direction of image | 341.45443716498 |
Reference for bearing of destination | True direction |
Bearing of destination | 341.45443716498 |
GPS date | 19 October 2019 |