Based on our record, WebElements seems to be more popular. It has been mentiond 1 time since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
Webelements.com has quite a lot of data on the elements, but I'm not seeing light transmission there. That seems very specialized, and would probably be highly wavelength/frequency specific too. Probably have better luck searching for transmission of a specific frequency band by a specific element rather than trying to find it all tabulated. Source: about 2 years ago
Ptable - Interactive periodic table with dynamic layouts showing names, electrons, oxidation, trend visualization, orbitals, isotopes, and compound search. Full descriptions from write-up sources.
Stencil for WordPress - With Stencil for WordPress, you can design images as you write posts without ever leaving the page!
Periodic-table.io - Interactive periodic table of the chemical elements in 38 languages - Includes properties, history, name origin, facts, applications, hazards, isotopes and more
IncludeWP - Top open-source frameworks for WordPress plugin & theme devs
Kalzium - Kalzium (German for: Calcium) is a periodic table of the elements for KDE SC 4.
WP Plugin Directory - A smarter way to find WordPress plugins