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#datum — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #datum, aggregated by home.social.

  1. 10% 𝘃𝗮𝗻 𝗵𝗲𝘁 𝘄𝗲𝗴𝗴𝗲𝗴𝗼𝗼𝗶𝗱𝗲 𝗲𝘁𝗲𝗻 𝗸𝗼𝗺𝘁 𝗱𝗼𝗼𝗿 𝘃𝗲𝗿𝘄𝗮𝗿𝗿𝗶𝗻𝗴 𝗼𝘃𝗲𝗿 𝗱𝗲 𝗱𝗮𝘁𝘂𝗺

    Jaarlijks belandt er in Nederland nog altijd een enorme hoeveelheid voedsel in de prullenbak. Terwijl een groot deel daarvan nog prima eetbaar is. Volgens Kathelijn van Elk, Hoofd Impact Programma’s Global bij Too Good To Go, en Wieke van der Vossen, expert voedselveiligheid bij het...

    rtl.nl/wonen/huishouden/artike

    #WeggegooidEten #Verwarring #Datum

  2. Atmospheric refraction, due to the different temperature/altitude profile in the atmosphere at different times of day...makes distant mountains appear taller or shorter.

    The attached photo is a comparison of what I shot yesterday afternoon and this morning. The camera was set up within inches of the same location for both shots, and those mountains are between 50 and 120 miles away...so I'm saying that any parallax effect from camera location is essentially zero.

    I have annotated with arrows where it's easy to make a comparison of how the near and far ridge lines overlap differently in the two photos.

    This is a follow up to:
    universeodon.com/@KrajciTom/11

    Imagine the care that was needed to conduct surveys before the GPS/GNSS era:
    explorersweb.com/the-five-men-

    "The Great Theodolite built by Troughton & Simms in London stood nearly 1.5m high, had a horizontal circle one meter in diameter, and could read angles to a single second of arc. Moving it required 30 porters and sometimes elephants."

    "The reduction of Nicolson’s observations was a colossal task. Each ray from each station had to be corrected for instrumental error, for temperature and pressure, and for the curvature of the Earth. Above all, they needed to correct for atmospheric refraction, which at those distances could amount to six or seven minutes of arc and change from hour to hour."

    #Atmosphere #Refraction #Physics #Math #GIS #Datum #Survey #Geodetic #Map #Optics #Science #Parallax #Cool #NewMexico #Theodolite

  3. Atmospheric refraction, due to the different temperature/altitude profile in the atmosphere at different times of day...makes distant mountains appear taller or shorter.

    The attached photo is a comparison of what I shot yesterday afternoon and this morning. The camera was set up within inches of the same location for both shots, and those mountains are between 50 and 120 miles away...so I'm saying that any parallax effect from camera location is essentially zero.

    I have annotated with arrows where it's easy to make a comparison of how the near and far ridge lines overlap differently in the two photos.

    This is a follow up to:
    universeodon.com/@KrajciTom/11

    Imagine the care that was needed to conduct surveys before the GPS/GNSS era:
    explorersweb.com/the-five-men-

    "The Great Theodolite built by Troughton & Simms in London stood nearly 1.5m high, had a horizontal circle one meter in diameter, and could read angles to a single second of arc. Moving it required 30 porters and sometimes elephants."

    "The reduction of Nicolson’s observations was a colossal task. Each ray from each station had to be corrected for instrumental error, for temperature and pressure, and for the curvature of the Earth. Above all, they needed to correct for atmospheric refraction, which at those distances could amount to six or seven minutes of arc and change from hour to hour."

    #Atmosphere #Refraction #Physics #Math #GIS #Datum #Survey #Geodetic #Map #Optics #Science #Parallax #Cool #NewMexico #Theodolite

  4. Atmospheric refraction, due to the different temperature/altitude profile in the atmosphere at different times of day...makes distant mountains appear taller or shorter.

    The attached photo is a comparison of what I shot yesterday afternoon and this morning. The camera was set up within inches of the same location for both shots, and those mountains are between 50 and 120 miles away...so I'm saying that any parallax effect from camera location is essentially zero.

    I have annotated with arrows where it's easy to make a comparison of how the near and far ridge lines overlap differently in the two photos.

    This is a follow up to:
    universeodon.com/@KrajciTom/11

    Imagine the care that was needed to conduct surveys before the GPS/GNSS era:
    explorersweb.com/the-five-men-

    "The Great Theodolite built by Troughton & Simms in London stood nearly 1.5m high, had a horizontal circle one meter in diameter, and could read angles to a single second of arc. Moving it required 30 porters and sometimes elephants."

    "The reduction of Nicolson’s observations was a colossal task. Each ray from each station had to be corrected for instrumental error, for temperature and pressure, and for the curvature of the Earth. Above all, they needed to correct for atmospheric refraction, which at those distances could amount to six or seven minutes of arc and change from hour to hour."

    #Atmosphere #Refraction #Physics #Math #GIS #Datum #Survey #Geodetic #Map #Optics #Science #Parallax #Cool #NewMexico #Theodolite

  5. Atmospheric refraction, due to the different temperature/altitude profile in the atmosphere at different times of day...makes distant mountains appear taller or shorter.

    The attached photo is a comparison of what I shot yesterday afternoon and this morning. The camera was set up within inches of the same location for both shots, and those mountains are between 50 and 120 miles away...so I'm saying that any parallax effect from camera location is essentially zero.

    I have annotated with arrows where it's easy to make a comparison of how the near and far ridge lines overlap differently in the two photos.

    This is a follow up to:
    universeodon.com/@KrajciTom/11

    Imagine the care that was needed to conduct surveys before the GPS/GNSS era:
    explorersweb.com/the-five-men-

    "The Great Theodolite built by Troughton & Simms in London stood nearly 1.5m high, had a horizontal circle one meter in diameter, and could read angles to a single second of arc. Moving it required 30 porters and sometimes elephants."

    "The reduction of Nicolson’s observations was a colossal task. Each ray from each station had to be corrected for instrumental error, for temperature and pressure, and for the curvature of the Earth. Above all, they needed to correct for atmospheric refraction, which at those distances could amount to six or seven minutes of arc and change from hour to hour."

    #Atmosphere #Refraction #Physics #Math #GIS #Datum #Survey #Geodetic #Map #Optics #Science #Parallax #Cool #NewMexico #Theodolite

  6. Atmospheric refraction, due to the different temperature/altitude profile in the atmosphere at different times of day...makes distant mountains appear taller or shorter.

    The attached photo is a comparison of what I shot yesterday afternoon and this morning. The camera was set up within inches of the same location for both shots, and those mountains are between 50 and 120 miles away...so I'm saying that any parallax effect from camera location is essentially zero.

    I have annotated with arrows where it's easy to make a comparison of how the near and far ridge lines overlap differently in the two photos.

    This is a follow up to:
    universeodon.com/@KrajciTom/11

    Imagine the care that was needed to conduct surveys before the GPS/GNSS era:
    explorersweb.com/the-five-men-

    "The Great Theodolite built by Troughton & Simms in London stood nearly 1.5m high, had a horizontal circle one meter in diameter, and could read angles to a single second of arc. Moving it required 30 porters and sometimes elephants."

    "The reduction of Nicolson’s observations was a colossal task. Each ray from each station had to be corrected for instrumental error, for temperature and pressure, and for the curvature of the Earth. Above all, they needed to correct for atmospheric refraction, which at those distances could amount to six or seven minutes of arc and change from hour to hour."

    #Atmosphere #Refraction #Physics #Math #GIS #Datum #Survey #Geodetic #Map #Optics #Science #Parallax #Cool #NewMexico #Theodolite

  7. Ich #fordere die Einführung eines neuen Plurals für das Wort "#Datum".
    Egal ob Dati, Dateen, Datums, Datumse, Datümer... Hauptsache diese Doppelbelegung von "Daten" hört auf.

    Ich meine, ein #Kalender ist ja auch keine #Datensammlung.

    #DasIstNichtSchön
    #Deutsch
    #Änderungsantrag
    #Wortschatz