Light bends around corners 🙂

Earlier I demonstrated the double slit experiment, proving that light has wave-like properties. Increasing the amount of ‘slits’ drastically, say fx. 1000 per millimeter, creates a ‘diffraction grating’, an important optical instrument which can be used for spectral analysis.

Different wavelengths will bend at different angles, as can be seen here using a red, a green and a purple laser. Shining white light through the filter, creates an absolutely beautiful spectrum ❤️🌈 With a bit of effort, you can angle the light so the spectrum matches the dots from three lasers.

Diffraction gratings like these are cheap, so I’m not ruined from accidentally ordering 20 instead of just two 🤷🏼‍♂️😂

#physics #stem #light #laser #laserist #engineer #electronicsengineering #electronics #laserdiode

50 years ago, Dark Side of the Moon came out.

SO many memories, from hearing it when it first came out when I was a little tiny kid and my teenager brother played it for me, to running laser light shows in the 90’s and playing Dark Side of the Moon laser light shows so often it’s embedded in my brain. :-)

#laserist #LaserLightShow #planetarium #PinkFloyd #DarkSideOfTheMoon