Photo detail

Camera Maker Nikon Corporation Camera Model NIKON D7500
Aperture f/10 Color Space sRGB
Exposure Value -2 EV Exposure Program Aperture Priority
Exposure Time 3/5 sec Flash No Flash
Focal Length 18 mm ISO 200
Metering Mode Pattern Date/Time 2017:12:22 15:31:17
Resolution Unit Inch X Resolution 240 dots per ResolutionUnit
Y Resolution 240 dots per ResolutionUnit Compression Jpeg Compression
Contrast 0 Exposure Mode 0
Saturation 0 Scene Type Directly Photographed
Sharpness 0 Caption Leonardo's design for measuring the air's humidity resembles a scale. A chunk of was is placed in one tran and an equal weight of cotton in teh other. Because cotton absorbs water but was does not, increased humidity makes the cotton heavier, unbalancing the scale. Changes in the amount of humidity can be read along the calibrated horizontal bar. Leonardo designe the machine to help predict the best flying weather. Leonardo designed a combination of ropes and pulleys called a block and tackle. The mechanism can be used to lift heavy weights or exert large forces in any direction. Leonardo used ropes and pulleys in a number of his designs, including his clider and theater bird.