WWII scientist working on breaking the Enigma machine code
Victorian era scientist thinks about what he sees in the microscope
Edisons successful carbon filament light closeup
camera moves around the desk of a 1885 scientist
closeup businessman opening folder and writing on legal documents
doctor studying a hand joint
1930s doctor looks at testube and writes on a clipboard
rack focus scientific equation on chalk board.
1885 scientist writing in his journal
Edisons successful test of a carbon filament
Victorian detective writing and looking at paperwork
close shot of businessman writing on a legal document
A closeup of an alchemist or scientist from around 1898 time period working in his laboratory documents his work.
closeup vintage man writing in a ledger while riding a train
Victorian detective writing notes using a dip pen
macro 18th century coins and man writing with a quill pen
closeup victorian scientist making notes from microscope
victorian scientist looking at medicines and taking notes
dolly 1940s news reporters looking at some film and making notes
A Victorian era scientist working in his laboratory using a dip pen to document observations made through a brass microscope typical of the time period.
Two young scientists discussing and using a tablet PC 4K
WWII scientist working on the Enigma code machine
A Victorian era scientist working in his laboratory using a dip pen to make some notations of his work.
businessman working on documents at his desk 4k
wide shot businessman writing on a legal document
man writing notes
teenagers in a school chemistry class
1930s doctor gets up from desk to talk to nurse
Focused Individual Writing at a Compact Desk
victorian woman scientist writing notes
vintage businessman man on a train writing and thinking
19th century apothecary or chemist using a dip pen writing notes
macro shot of businessman writing on a legal document focus on foreground
Portrait of tired senior man to not listens notations from his serious wife when they together sitting on the couch at home. Family problems
victorian scientist making notes on chemicals
1940s vintage writer typing and correcting his story
victorian era scientist looking through a microscope
victorian scientist looks through microscope and takes notes
victorian scientist making notes for different chemicals
Friendly student's cheerful smile
wide shot 1930 nurse looking through a microscope then takes notes
1940s reporters looking at a roll of film for the story
1940s Reporters review film then one makes notes
victorian scientist using microscope focus on boiling flask
businessman working at his desk rack focus to paperwork 4k
businessman at his desk working on paperwork rack focus to document 4k