WASHINGTON (Reuters) - Block Inc has agreed to pay a fine of $80 million to a group of 48 state financial regulators after the agencies determined the company had insufficient policies for ...

In his book The Mathematical Universe, mathematician William Dunham wrote of John Venn’s namesake legacy, the Venn diagram, “No one in the long history of mathematics ever became better known ...

Abstract: Optical wireless communication (OWC) systems rely on precise alignment between transmitter and receiver, often requiring tracking equipment in practical applications. However, the complexity ...

For that reason, the direct epitaxial growth of high-quality III-V optical gain materials selectively on large-size silicon photonics wafers remains a highly sought-after objective. The large mismatch ...

In photonic chips, information can be encoded in optical properties like polarization, phase, magnitude, frequency, and wavevector. While this would be extremely fast and energy-efficient ...

Fiber optic drones capable of penetrating 20 kilometers (12.4 miles) into enemy lines and striking targets with high-resolution imagery have emerged as key tools in the Russia-Ukraine war.

Russia is using fiber-optic drones to gain an advantage in the Ukraine war. These drones are harder to detect and jam than traditional drones. Ukrainian forces are adapting their tactics to ...

School of Advanced Materials, Shenzhen Graduate School, Peking University, Shenzhen 518055, P. R. China ...

In space exploration, long-distance optical links can now be used to transmit images, films and data from space probes to Earth using light. But in order for the signals to reach all the way and ...