In science, a lecture refers to an instructional talk on a given subject.

Famous lectures
A number of famous lectures, many turned into books, have functioned have been idea spurring locations in the development of key topics, not often produced in the non direct human interactions style of journal or book writing. Some of these are listed below.

In 1747, Scottish physician and chemist William Cullen became a chemistry lecturer at Glasgow University and also later lectured at the University of Aberdeen, during the course of which he invented the now standard “reaction arrow” notation of chemical reactions. Cullen was a charismatic lecturer, attracting large classes. He always came before a class with a manuscript or lengthy notes that he revised each year, but he rarely used them and spoke extemporarily. He gave the students the necessary background of information, but this was never presented as a list of facts to be memorized, rather as a journey of exploration into the mysteries of diseases and the processes that caused them. The professor and his students were companions on the journey. Phrases like ‘as far as I know’ and ‘I am persuaded’ abound in his lectures and textbooks. In 1757, at the University of Aberdeen, Cullen began to use Geoffroy’s affinity table in lectures at the University of Aberdeen. [1] To help in explaining to his students the idea of ‘single elective attractions’ (single displacement reactions) and ‘double elective attractions’ (double displacement reactions), Cullen pioneered the use of reaction arrows ‘→’ or ‘darts’, as he called them, drawn diagonally to represent the affinity tendencies of the individual species in the reaction. In addition, he introduced the conception of using brackets ‘{’ to represent a bonded association.

The 1902, the Harvard University chemistry class lectures by American physical chemist Gilbert Lewis is where the now-famous Lewis dot structures were introduced as a classroom teaching aid.

In 1925, Lewis' "Anatomy of Science" lecture gave some of the first speculations on hmolscience, in regards to whether him writing a book was but a chemical reaction.

The 1943 laymanized “What is Life?, in terms of chemistry and physics, lectures of Austrian physicist Erwin Schrodinger, and followup 1944 booklet, and followup retraction “Note to Chapter 6”, is one of the most widely read booklets by scientists in the science community overall.


In Hmolpedia pages, the thermodynamics lectures page contains videos of a number of university lectures on topics in thermodynamics and or physical chemistry.

The Hmolpedia “videos” page contains related hmolscience videos and some lectures.

See also
‚óŹ Libb Thims (lectures)


1. Crosland, M. P. (1959). “The use of Diagrams as Chemical ‘Equations’ in the Lecture Notes of William Cullen and Joseph Black.” Annals of Science, Vol 15, Num 2, June.

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