WWII scientist working on breaking the Enigma machine code
A closeup of an alchemist or scientist from around 1898 time period working in his laboratory documents his work.
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
dolly 1930 nurse making notes from the microscope
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
Victorian detective writing and looking at paperwork
rack focus scientific equation on chalk board.
Focused Individual Writing at a Compact Desk
closeup victorian scientist making notes from microscope
WWII scientist working on the Enigma code machine
victorian apothecary woman making notes from medicines
1885 scientist writing in his journal
Victorian era scientist thinks about what he sees in the microscope
Victorian detective writing notes using a dip pen
close shot of businessman writing on a legal document
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.
macro 18th century coins and man writing with a quill pen
macro 18th century man writing with a quill pen
man writing notes
Two young scientists discussing and using a tablet PC 4K
shallow DOF of businesswoman writing on a document
victorian woman scientist writing notes in a book
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.
Edison's failure inventing the light bulb
victorian scientist looking at medicines and taking notes
victorian woman scientist writing notes
wide shot businessman writing on a legal document
teenagers in a school chemistry class
businessman working on documents at his desk 4k
victorian scientist making notes on chemicals
Portrait of tired senior man to not listens notations from his serious wife when they together sitting on the couch at home. Family problems
19th century apothecary or chemist using a dip pen writing notes
macro shot of businessman writing on a legal document focus on foreground
A Victorian era scientist working in his laboratory using a dip pen to make some notations of his work.
victorian scientist making notes for different chemicals
1940s Reporters review film then one makes notes
Friendly student's cheerful smile
1940s vintage writer typing and correcting his story
vintage man writing in a ledger while riding on a train