The kilogram, ampere, mole, and Kelvin are changing to stay the same

Not to brag, but the SI is at least one foot (see what I did there?) ahead of Imperial units.

‘Cool’ light improves learning and academic performance. ‘Yellow light’ better for relaxing

A new research investigated various light intensity scenarios and reported their findings. For optimal learning performance, “cool” light is better while “yellow” or “warm” light is the most relaxing.