What is ‘calibration’ exactly and why is it so important? Imagine you’re driving along the road and your speedometer is not working properly. You look at it and it claims you’re moving along at 30 mph. But you notice that everyone else is driving past you and you seem to be going too slowly… This… Continue reading What exactly is “calibration” and why is it so important in laser/IPL treatments?
Month: August 2023
I’ve known for a long time that black and white are not ‘colours’. But I didn’t know that purple is also not a colour…
In physics we define ‘colour’ by its wavelength. But there are colours which do not have a wavelength – black and white are the obvious ones. Black is when there is no light at all, and white is when all the colours in the spectrum ‘combine’ together into one beam of light. But, I recently… Continue reading I’ve known for a long time that black and white are not ‘colours’. But I didn’t know that purple is also not a colour…
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