Victorian era scientist thinks about what he sees in the microscope
Edisons successful carbon filament light closeup
WWII scientist working on breaking the Enigma machine code
camera moves around the desk of a 1885 scientist
closeup businessman opening folder and writing on legal documents
WWII scientist taking measurements on the Enigma machine
shallow DOF of businesswoman signing a legal document
1885 scientist looking through his microscope
doctor studying a hand joint
1930s doctor looks at testube and writes on a clipboard
closeup victorian scientist making notes from microscope
1885 scientist writing in his journal
WWII scientist working on the Enigma code machine
Scene tracks by a 1890 era scientist working in his laboratory using a dip pen to make some notations in a notebook of his work.
A Victorian era scientist working in his laboratory using a dip pen to make some notations of his work.
macro 18th century coins and man writing with a quill pen
victorian scientist looks through microscope and takes notes
closeup vintage man writing in a ledger while riding a train
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.
rack focus scientific equation on chalk board.
man writing notes
victorian scientist looking at medicines and taking notes
Victorian detective writing notes using a dip pen
Two young scientists discussing and using a tablet PC 4K
victorian woman scientist writing notes in a book
Victorian detective writing and looking at paperwork
victorian apothecary woman making notes from medicines
victorian woman scientist writing notes
A closeup of an alchemist or scientist from around 1898 time period working in his laboratory documents his work.
wide shot businessman writing on a legal document
teenagers in a school chemistry class
vintage businessman man on a train writing and thinking
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
close shot of businessman writing on a legal document
19th century apothecary or chemist using a dip pen writing notes
businessman working on documents at his desk 4k
macro shot of businessman writing on a legal document focus on foreground
victorian scientist making notes for different chemicals
Friendly student's cheerful smile
1940s vintage writer typing and correcting his story
vintage man writing in a ledger while riding on a train
1930s doctor gets up from desk to talk to nurse
1940s reporters looking at a roll of film for the story
Wide Shot 1930 Nurse Looking Through A Microscope Then Takes Notes Color Version