A set of five gas discharge tubes are arranged such that when they are touched with a Tesla coil, their characteristically colored emission spectra are seen. The Tesla coil can burn your skin on ...

This causes line emission spectra to be produced, as shown below. This is not a continuous spectrum as only light of specific frequencies and specific colours are produced. Different types of ...

When a gas is very hot, it doesn’t emit all wavelengths of light. Hot gases don’t produce a continuous emission spectrum. Black hydrogen absorption lines are at the same wavelength as the ...

"You'd see this structured—almost like a patch—grey-toned or white toned-emission connected to the aurora," said researcher Emma Spanswick.

The calibration process is a simple one that relies on a light source with well-defined lines. CFL bulbs are readily accessible, so they are a good choice. First, a picture is taken through the ...

A whitish, gray patch that sometimes appears in the night sky alongside the northern lights has been explained for the first ...

A new cutting-edge platform for controlling light at the nanoscale, paves the way for advancements in quantum communication, data encryption, and next-generation photonic devices.Highly efficient and ...

The James Webb Space Telescope (JWST) has redefined humanity's capacity to study the cosmos. Its unprecedented sensitivity in ...