We're all familiar with the high-pitched squeak of basketball shoes on the court during games, or tires squealing on pavement. Scientists conducted several experiments and discovered that the geometry of the sneakers' tread patterns determines the squeak's frequency, enabling the team to make rubber blocks set to specific frequencies and slide them across glass surfaces to play Star Wars' "Imperial March."
麦当劳（MCD.US）正式发布 2025 财年全年业绩报告——该财年，麦当劳全球实现营业收入268.85 亿美元（约合人民币 1868 亿元），同比增长 4%；归母净利润85.63 亿美元（约合人民币 595 亿元），同比增长4%，整体表现符合市场预期。
。关于这个话题，51吃瓜提供了深入分析
We’ve made tweaks to several of our default settings in this release including defaulting to enabling automatic updates, turning off intrusive WiFi notifications, and removing the Multitasking View and System Settings launchers from the dock. System Settings is always available from Quick Settings and Multitasking View can be launched by selecting the already active workspace item in the dock. You can of course always change which apps are pinned to your dock and adjust other options in System Settings.
Pros and Cons of BlockchainBlockchain has many advantages and disadvantages.
• Every time I teach world history, I make a point of showing things like the above to my students and reading them Philip Larkin’s “An Arundel Tomb”: