blackboard

31 photos and 4 illustrations tagged blackboard, from 13 members of Flickr Commons.

When were these photos & illustrations taken?

5
1898
2025

 

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14% of these photos & illustrations are geotagged.

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Photos & Illustrations tagged blackboard:

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The last upload was March 2025.

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Mary N. Crawford, shown sitting next to blackboard

from Smithsonian Institution

  • 1 older comment, and then…
  • Jo Hinkel-Schneck said:
    I am the editor for a blog run by non-profit Feminist Press called UnderTheMicroscope.com. We publish stories and blogs designed to motivate girls to pursue careers in science, technology, engineering and math field.s I used this wonderful photo in a blog post today about how science careers are the "top paying" jobs for women: www.underthemicroscope.com/.

    Thank you for the beautiful photos, Smithsonian, of women in science from the '40s, '50s and '60s!

    --Joanne Hinkel
  • Lauren said:
    Hi, I'm an admin for a group called Historic Heroines, and we'd love to have this added to the group!
  • Alan Crawford said:
    Dr. Crawford (1923-1997) was a world-renowned immunohematologist who participated in groundbreaking work on blood groups. She was the recognized expert on the Lu (Lutheran) blood group.

    While she did not herself discover the Lutheran blood group, she did discover (in 1961, not 1962) the very rare Lu(a-b-) phenotype in her own blood. For many years, only one person outside the Crawford family - the patient in Great Britain - was known to carry this phenotype.

    A note regarding blood groups: Blood groups are often confused with blood types. Blood types are genetic expressions within blood groups. All people carry all blood groups but their phenotypes ("blood types") within those groups will differ and may even be unique for a given individual.

    The best-known blood groups are ABO and Rh; others include (but are not limited to) Lu (Lutheran), K (Kell), Le (Lewis), Fy (Duffy) and Jk (Kidd).

    An excellent treatise on this subject is Blood Groups in Man by Race & Sanger, in which Dr. Crawford's work is mentioned.
  • Smithsonian Institution said:
    Hi acrawfordiii,

    Thanks for sharing more information about Dr. Crawford with our community!

    Susannah

Doofstommen-onderwijs / Education for the deaf-and-dumb

from Nationaal Archief

  • patrick.judge42 said:
    Great image.
  • Wim van der Groef said:
    Hi, I'm an admin for a group called ~~~ HET GEZICHT VAN NEDERLAND in de twintigste eeuw ~~~, and we'd love to have this added to the group!
  • Wim van der Groef said:
    Mijn hartelijke dank voor het snel toevoegen van de bijzondere foto's uit grootmoeders en -vaders tijd !!

Learning to be a Court Reporter?!

from National Library of Ireland on The Commons

  • 17 older comments, and then…
  • derangedlemur said:
    Looks more like a difference engine of some sort than a typewriter.
  • derangedlemur said:
    I would guess that between the book keeping and the contents of the cupboards that they are learning to be dispensing chemists rather than court reporters.
  • hockadilly said:
    History of typewriters: www.officemuseum.com/typewriters.htm.
  • derangedlemur said:
    It might be a Remington typewriter: 2.bp.blogspot.com/-BOXZ5bxBMD8/TdUSJA6OqqI/AAAAAAAADEY/p7...
  • National Library of Ireland on The Commons said:
    This just in! Over at a wedding in Kilkenny, 15 of 16 people just got named! Ringing the Flickr Bell so hard that the clappers shot out of it and nearly brained a colleague...