Original Periodic Table, by Dmitri Mendeleev (1869)
Just as Da Vinci’s anatomy drawings helped doctors visualize what they were working on, so too did Dmitri Mendeleev’s efforts to organize what we knew of the elements into a rational data table. Mendeleev established the periodic table in the mid-nineteenth century, organizing the known elements and predicting more that have since been discovered. This table first appeared in a form that doesn’t look much like a table - it comes from a manuscript draft. The Periodic Table, which all schoolchildren memorize today, is one of the earliest examples of an infographic helping people to understand a scientific discipline.
Attributed to Harry Burnett while Yale Puppeteers were working in their theater, Teatro Torito, on Olvera Street in Los Angeles, California, circa 1931. The photo was taken by Harry Burnett at Cal Tech in Pasadena where Albert Einstein was teaching. Einstein saw the puppet perform at the Teato Torito and was quite amused. He reached into his jacket’s breast pocket, pulled out a letter and crumpled it up. Speaking in German, he said, “The puppet wasn’t fat enough!” He laughed and stuffed the crumpled letter up under the smock to give the puppet a fatter belly. This is a wonderful photograph that Harry treasured. Harry Burnett also kept the letter in a frame and loved to retell the story and at the end give his pixish laugh.
The psychologist Harry Harlow (c. 1958), with one of his experimental rhesus monkeys, used for his studies on maternal love.
In his most famous experiment, he separated infant monkeys from their mothers at birth,
and placed them with a pair of surrogate mothers: one wire frame mother, and one cloth mother with a face. In one condition, the wire mother had a milk bottle built into her chest, while in the second condition, the cloth mother had the milk bottle. In both conditions, the monkey would feed from the milk-possessing mother, but regardless of the food source, the infant spent the majority of its time clutching to the warmer, more life-like cloth mother. Harlow (1958) concluded:
Certainly, man cannot live by milk alone. Love is an emotion that does not need to be bottle- or spoon-fed, and we may be sure that there is nothing to be gained by giving lip service to love
H. F. Harlow (1958). The nature of love. American Psychologist, 13, 673–685.
Mickey Mouse- Haunted house (1929)- Directed, Produced, Written and Voice by Walt Disney.
Moon model; 1898