#lightwaves — Public Fediverse posts

Scientists Observe Mysterious Light Wave Vortices Moving Faster Than Light

Dark spots within lightwaves may appear to break the speed of light, according to new research from Technion-Israel…
#NewsBeep #News #Physics #Einstein'sgeneralrelativity #fasterthanlight #LightSpeed #lightwaves #Science #UK #UnitedKingdom #vortices
https://www.newsbeep.com/uk/502793/

https://www.europesays.com/uk/859348/ Scientists Observe Mysterious Light Wave Vortices Moving Faster Than Light #Einstein'sGeneralRelativity #FasterThanLight #LightSpeed #LightWaves #Physics #Science #UK #UnitedKingdom #vortices

Scientists Observe Mysterious Light Wave Vortices Moving Faster Than Light

Dark spots within lightwaves may appear to break the speed of light, according to new research from Technion-Israel…
#NewsBeep #News #Science #CA #Canada #Einstein'sgeneralrelativity #fasterthanlight #lightspeed #lightwaves #vortices
https://www.newsbeep.com/ca/568275/

✨During the #Christmas season, we often think of #wonders and the invisible🪄 that connects our world. Did you know that scientists are searching for an invisible wonder - but in the #universe? 🌌 #Axions, the promising candidates for Dark Matter (DM)🖤, are ultra-light particles with masses around 10⁻²² eV and wavelengths of about one kiloparsec (~ 3x10¹⁶ km).

Particles with similar properties to axions are called "axion-like particles" (ALPs). 💡ALPs, which include ultra-light axions, can alter #light polarization – meaning the alignment of #lightwaves. During an internship with us, Sarah searched for such phenomena in low-frequency #LOFAR data 📡 from the pulsar PSR J0332+5434. Low frequencies📉 are ideal, as the ionosphere – an electron layer in the Earth's atmosphere 🌍, caused by solar radiation – creates interference that can be removed from low-frequency LOFAR data through calibration.

According to theories, axions apperars in strong magnetic fields, such as in #stellar cores, where they can escape because they interact very weakly with normal matter. Just like DM 🖤.

Similarly, pulsars have extremely strong static magnetic fields. When cosmic ALPs enter a strong #magneticfield, they can be converted into photons – that is, light 🌟 – and thus become detectable, if ultra-light axions exist.

Currently, there are three methods for searching for ALPs:
1️⃣ Helioscopes for solar ALPs (e.g. IAXO, 🖥️ 1) ☀️,
2️⃣ Haloscope searches in the galactic halo 🌌 (e.g. observing radiopulsars, 🖥️ 2), and
3️⃣ Generating ALPs in the lab 🔬 (e.g. ALPS II, @DESY , 🖥️ 3).
© S.Pappert, E.Moerova | MPIfR

Experimenting with Interference on Thin Layers https://hackaday.com/2024/08/26/experimenting-with-interference-on-thin-layers/ #interferencepatterns #interference #homescience #lightwaves #substrate #thinfilm #Science #light

Experimenting with Interference on Thin Layers - [Stoppi] has taken on a fascinating project involving the interference of thin lay... - https://hackaday.com/2024/08/26/experimenting-with-interference-on-thin-layers/ #interferencepatterns #interference #homescience #lightwaves #substrate #thinfilm #science #light