光速是多少（如此之快，动力又是什么？）
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<p data-track="1" style="box-sizing: border-box; margin-bottom: 20px; padding: 0px; border: 0px; color: rgb(34, 34, 34); font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", "Helvetica Neue", Arial, sans-serif; font-size: 18px; text-align: justify; white-space: normal; background-color: rgb(255, 255, 255); margin-top: 0px !important;">简单讲：光速每秒30万公里，确实很快，但光达到光速不需要任何动力，而且没有任何加速过程，说白了，光“一生下来”就是光速，而且必须是光速。</p><p data-track="2" style="box-sizing: border-box; margin-top: 20px; margin-bottom: 20px; padding: 0px; border: 0px; color: rgb(34, 34, 34); font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", "Helvetica Neue", Arial, sans-serif; font-size: 18px; text-align: justify; white-space: normal; background-color: rgb(255, 255, 255);">传统思维告诉我们，任何物体达到一定速度都需要一个加速过程，这也很符合我们的日常生活认知和经验。比如说一辆汽车从静止到百公里时速，有一个过程。</p><div class="pgc-img" style="box-sizing: border-box; margin: 18px 0px; padding: 0px; border: 0px; color: rgb(34, 34, 34); font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "WenQuanYi Micro Hei", "Helvetica Neue", Arial, sans-serif; font-size: 18px; text-align: justify; white-space: normal; background-color: rgb(255, 255, 255);"><img src="https://p6.toutiaoimg.com/origin/tos-cn-i-qvj2lq49k0/7208ef3eaabf460ca4c8537e40579a8f?from=pc" img_width="1279" img_height="800" alt="光速每秒达到30万公里，如此之快，动力又是什么？" inline="0" class="syl-page-img" style="box-sizing: border-box; border: 0px; margin: 0px auto 8px; padding: 0px; cursor: zoom-in; max-width: 100%; display: block; border-radius: 4px; height: auto;"/><p class="pgc-img-caption" style="box-sizing: border-box; margin-top: 20px; padding: 0px; border: 0px; margin-bottom: 0px !important;"><br/></p></br>微信搜索公众号【深圳家】或者直接搜索【i-shenzhen】，获取更多信息
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