The TTArtisan Light Meter II might not be perfect, but it’s still one of the cheapest and easiest-to-use ...

but a handheld meter is ideal for the most accurate results. While there are only two types of light to measure (incident and ...

We know that measuring the speed of light with an Arduino is possible ... a photon will travel 19 meters in one clock cycle. Even with some very clever coding, we’re not really sure detecting ...