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black ink shape on watercolor paper texture background
A mixed-race man stands over a desk to work on a scientific presentation which can be seen on a large screen.
blue pencil strokes isolated on white background
Periodic system. Closeup of some elements
collection of hand drawn red pen on white background.
Scientists in a Lab doing research
Vibrant colors swatches - adhesive film - with colour names in English, German, French, Polish and Russian, closeup detail
Photography arrows, Problem and solution concept ,drawn with pen on note pad
Close-up of mature woman holding printed sheet with design of fan propeller while standing near 3D printer.
physical formula. Black school board. E mc2
Drawn doodles and chaotic circles on a white background with a black felt-tip pen
Close up of aircraft tail
Collage of color drawn pencil scribbles on white background. Banner design
BRICS (Brazil, Russia, India, China, South Africa)
chemical formula on blackboard
Color Guide with Pages Marked
An Asian woman in financial market exchange centre.
Green pencil strokes isolated on white background.
A CPR training class is conducted by a security guard in an office.
Measuring, transparent, plastic beaker with markings of various sizes for mixing paint
Form digitization concept. Transition from paper to computer.
Set of hand drawn scribble doodle on white background. Red underline drawn with red marker pen, design element.
Simulated newspaper clipping about a scientific study finding that social media is bad for mental health, causing depression, anxiety and feelings of social inadequacy. Text was written from scratch by the photographer (an experienced journalist), who also did the design, so this image is free of third-party copyright and may be used without restrictions.
different color charts on white paper - pick your favourite!
The British flag is in full frame, falling apart into shiny grains of sand on a dark turquoise background. Background of the British flag. Topics from the UK. Flag of Great Britain
close up of an eyeliner on white background
Fireworks exploded background
Free Images: "bestof:Structure of Hoechst dyes.svg Crenim <span class signature-talk >talk</span> 07 37 16 September 2011 UTC own Crenim 2011-09-16 Cc-zero Hoechst stains DNA"
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Paul_Robeson_1942_crop.jpg
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Holy family Sassoferrato Condé Chantilly.jpg
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