Research Lab Whiteboard at Night

The image is a wide realistic photograph of a research lab whiteboard at night, seen straight on, cool grey and amber palette. Across the top of the board, a bold black headline in hand-lettered capitals reads "CALIBRATION RUN 7", underlined twice. On the left side of the frame, a column of four numbered lines in blue marker reads "1. warm the sensor", "2. zero the scale", "3. log the drift", "4. repeat at 40C". In the centre of the board, a hand-drawn line chart on a faint grid rises from left to right, its x-axis labelled "minutes" and its y-axis labelled "drift (mV)", with three red data crosses on the line and a dashed tolerance band behind them. On the right side of the frame, a red circled note reads "DO NOT ERASE". In the lower-left corner, a smudged half-erased patch shows the ghost of earlier writing, too faint to read. Across the lower third, a steel tray holds five markers — two black, one blue, one red, one green — beside a chipped enamel mug with a teaspoon in it. In the upper-right of the frame, a wall clock reads twenty past four. Behind the board on the far right, a young woman in a grey knitted jumper stands in profile, looking at the chart, her face lit from below by a tablet she is holding. The lighting is a single hard overhead strip light, throwing a narrow specular streak across the board's gloss and a soft shadow under the tray. The overall composition is orderly and symmetrical, cool grey warmed by amber, quiet and clinical.