Yes, that is a real rotary zoom ring on this Leica Edition Ultra phone

The Xiaomi 17 Ultra Leica Edition features a physical Master Zoom Ring for controlling zoom on its 200MP periscope camera. Check it out!
BMJ Global Health

Association of alcohol and different types of alcoholic beverages on the risk of buccal mucosa cancer in Indian men: a multicentre case-control study

Introduction While a large proportion of buccal mucosa cancer (BMC) is attributed to tobacco use, the contribution of alcohol ...
IEEE

A Dual-Mode Continuously Scalable-Conversion-Ratio SC Energy Harvesting Interface With SC-Based PFM MPPT and Flying Capacitor Sharing Scheme

Abstract: This article proposes a continuously scalable-conversion-ratio (CSCR) switched-capacitor (SC) energy harvesting interface that extracts power from a thermoelectric generator (TEG), regulates ...
Investopedia

Calculate Variable Cost Ratio: Optimize Production & Profits

Will Kenton is an expert on the economy and investing laws and regulations. He previously held senior editorial roles at Investopedia and Kapitall Wire and holds a MA in Economics from The New School ...
IEEE

Continuous-variable Quantum Key Distribution Access Network

Abstract: Quantum key distribution (QKD) networks are crucial for the development of quantum networks and the early stages of the quantum internet, enabling unconditional secure key distribution and ...