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