Editing Reflection (physics) (section)

===Time reflections===
Scientists have speculated that there could be time reflections.  Scientists from the [[Advanced Science Research Center|Advanced Science Research Center at the CUNY Graduate Center]] report that they observed time reflections by sending broadband signals into a strip of [[metamaterial]] filled with electronic switches.<ref>{{cite web | last=Orf | first=Darren | title=Time Reflections Are Real: What Are They, and How Do They Work? | website=Popular Mechanics | date=2025-03-02 | url=https://www.popularmechanics.com/science/a63979764/time-reflections-real/ | access-date=2025-03-03}}</ref>  The "time reflections" in electromagnetic waves are discussed in a 2023 paper published in the journal ''[[Nature Physics]]''.<ref>{{cite journal | last=Moussa | first=Hady | last2=Xu | first2=Gengyu | last3=Yin | first3=Shixiong | last4=Galiffi | first4=Emanuele | last5=Ra’di | first5=Younes | last6=Alù | first6=Andrea | title=Observation of temporal reflection and broadband frequency translation at photonic time interfaces | journal=Nature Physics | publisher=Springer Science and Business Media LLC | volume=19 | issue=6 | date=2023-03-13 | issn=1745-2473 | doi=10.1038/s41567-023-01975-y | doi-access=free | pages=863–868 | url=https://arxiv.org/pdf/2208.07236 | access-date=2025-03-03| arxiv=2208.07236 }}</ref>