Ultra-thin film that absorbs nearly all electromagnetic waves could improve reliability of wireless communication
Researchers in South Korea have developed an ultra-thin film composite material that can absorb over 99% of electromagnetic waves across multiple frequency bands, including those used for 5G/6G, WiFi and autonomous vehicle radars. The material is less than 0.5mm thick but has a reflectance of less than 1% and absorbance over 99%. This is much […]
Event horizon telescope captures the highest-resolution black hole images from Earth
The Event Horizon Telescope (EHT) collaboration has achieved the highest resolution observations ever from Earth by detecting light at 345 GHz from the centers of distant galaxies. This higher frequency allows for sharper images and insights into black holes and their environments. By using very long baseline interferometry (VLBI) across multiple telescopes, the EHT creates […]