{"resolved":true,"match_type":"uuid","source_type":"original_book","book_id":"38270854-596f-4a26-8183-db8c968c6020","title":"编码 隐匿在计算机软硬件背后的语言","author":null,"edition":null,"publisher":null,"year":null,"isbn":"9787121181184","requested_by":"printed_page","book":{"source_type":"original_book","book_id":"38270854-596f-4a26-8183-db8c968c6020","id":"38270854-596f-4a26-8183-db8c968c6020","uuid":"38270854-596f-4a26-8183-db8c968c6020","title":"编码 隐匿在计算机软硬件背后的语言","normalized_title":"编码隐匿在计算机软硬件背后的语言","author":null,"edition":null,"publisher":null,"year":null,"isbn":"9787121181184","isbns":["9787121181184","0123456789","6044921875","3039331000","0000000000","0000000000000"],"parsed":true,"ai_readable":true,"document_type":"book","page_count":438,"navigation_url":"https://workshop.closeclaw.top/ai/book/38270854-596f-4a26-8183-db8c968c6020","title_url":"https://workshop.closeclaw.top/ai/title/%E7%BC%96%E7%A0%81%20%E9%9A%90%E5%8C%BF%E5%9C%A8%E8%AE%A1%E7%AE%97%E6%9C%BA%E8%BD%AF%E7%A1%AC%E4%BB%B6%E8%83%8C%E5%90%8E%E7%9A%84%E8%AF%AD%E8%A8%80","fixed_page_url_template":"https://workshop.closeclaw.top/ai/book/38270854-596f-4a26-8183-db8c968c6020/page/{printed_page}","path_api_url_template":"https://workshop.closeclaw.top/api/ai/book/38270854-596f-4a26-8183-db8c968c6020/page/{printed_page}","read_url":"https://workshop.closeclaw.top/api/ai/read/38270854-596f-4a26-8183-db8c968c6020","page_url":"https://workshop.closeclaw.top/api/ai/books/38270854-596f-4a26-8183-db8c968c6020/page","search_url":"https://workshop.closeclaw.top/api/ai/books/38270854-596f-4a26-8183-db8c968c6020/search"},"page":{"printed_page":22,"pdf_page":38,"physical_index":38,"physical_index_base":0,"printed_page_status":"recognized","page_sha256":"53e60154e8fb191501b1c810e7185da971d2cfa2a0808d3c5e52642a675199dc"},"chapter":"编码隐匿在计算机软硬件背后的语言","content":"注意，在上图的右边，我们可以看到两个断开的线头，那就是开关。假设这两个电池没有问题，灯泡也没有烧坏，让这两个线头互相接触，就可以点亮灯泡。\n\n刚刚完成的就是一个简单的电路。首先要注意的是，一个电路就是一个环路。只有从电池到导线，再到灯泡和开关，然后再通过导线回到电池的整个回路是连通的，灯泡才能被点亮。电路中出现任何的中断都将使灯泡无法正常发光。开关的作用就是控制这个断开的过程。\n\n电路这种环状回路的特性说明电路中有某种东西在循环流动，或许有些像水流过水管那样。“水和水管”这个比喻经常被用来解释电流工作的原理，但是这种模型就如同所有其他的类比一样最终也无法自圆其说。在茫茫宇宙中，电不同于任何其他的事物，我们必须用它的术语来解释它。\n\n研究电流工作原理的、最主流的科学理论叫做“电子理论”（electron theory)，这套理论认为电流是由电子的运动而产生的。\n\n众所周知，所有的物质——我们所能看到和感觉到的事物——（通常情况下）都是由叫做原子（atom）的极其微小的东西组成的。每一个原子又由三种粒子构成：它们分别是中子（neutron）、质子（proton）和电子（electron）。你可以把原子的结构画成一个小太阳系，其中中子和质子被束缚在原子核内，而电子则围绕着原子核旋转，犹如行星围绕太阳旋转一样。\n\n编码隐匿在计算机软硬件背后的语言\n\n22","previous_page":null,"next_page":23}