SOURCE OF ENTREPRENEURS on Instagram: "This is why McDonald's is a multi billion dollar franchise. McDonald's became a multibillion-dollar company not just by selling food, but by perfecting systems, scale, and real estate. What started as a single restaurant evolved through the Speedee Service System, which prioritised consistency, speed, and repeatability over creativity, allowing the brand to be replicated anywhere in the world. Under Ray Kroc, McDonald's shifted into a franchise model where

@reposttism on Instagram: "日本利用压电瓷砖将脚步转化为电能。这些瓷砖捕捉来自你脚步的动能。当你行走时，你的重量和动作会对瓷砖产生压力。瓷砖会轻微弯曲，从而产生机械应力。瓷砖内部的压电材料将这种应力转化为电能。每一步都会产生少量电荷，而数百万步结合在一起就能产生足够的电力来驱动 LED 灯、数字显示屏和传感器。在像涩谷车站这样繁忙的地方，每天大约有 240 万个脚步为这一系统作出贡献。这些电能可以被储存或立即使用，从而减少对传统电力来源的依赖，并支持可持续的城市基础设施。这种方法将日常运动转化为实用的可再生能源 #日本 #知识 #事实 #你知道吗 #推荐 科技 创新 历史 技术 实验 热门"