狂丸研究所，每天涨点新知识

最近天气实在是热得要命，出门在外空调太大拿不动，风扇小巧但要占另一只手，走在外头又变成了一种酷刑。

但最近，狂丸在网上看到有人用手机喇叭成功吹灭了一根蜡烛，非常神奇。

这要是真的，以后夏天出门可就太方便了，一边玩手机一边吹风，舒服。

经过一番搜索，原来，能让手机吹灭蜡烛的是一款叫做Blower（吹风机）的app，图标就是一个风扇和蜡烛，一看就是老blower了。

打开之后能看到界面非常的简单：像模像样的仪表盘搭配写着on/off的开关。

只要点击它，下面的轮盘就会开始加速旋转，发出临场感十足的嗡嗡声。

蜡烛也很配合，应声而熄。

如果搭配上另一个手机……这孩子，或许能拿来变魔术？.gif

除了吹蜡烛，这东西还可以当成一个迷你型号的、专门吹落叶的机器来用。

桌上的橡皮屑再也不会乱跑，都吹成堆儿一起清理掉。

反向改装一下，手机很可能就变成一个吸尘器了。

但众所周知，手机不是等等党梦里的那块原价显卡，一般里面是没有风扇的。

那这吹蜡烛的风，到底是从哪里来的呢？

还记得轮盘启动时手机发出的拟真嗡嗡声吗？我们都知道，声音由振动产生，但它本身是不能推动空气形成风的。

空气中的粒子只会像下图中显示的那样，在某个范围内波动，最终还会回到原本的位置。

这款app便是通过控制手机驱动扬声器，从而带动扬声器处的空气波动，从小孔附近一进一出形成力扑灭蜡烛。

app启动时将扬声器靠近火苗，就可以清楚地看到部分火焰呈现一个被吸入的趋势。

但虽然吸入和吐出时空气的量是相同的，可蜡烛并不会在空气被吸入时被吸力熄灭，因为空气被吸入时是来自吸取源的各个方向，大家没有心往一处想，拧成一股绳，没啥力度。

所以只有被喷出时比较集中，这才能保证蜡烛被熄灭。

视频中的老哥还用吸尘器和棉球做了个实验来验证这一点：棉球放在进风处纹丝不动。

而在出风口处，一下子就被吹跑了。

自此，既然掌握了声音才是这个app的神奇之处，那么如果找对相应震动频率的声音，其实不用这个app也能达到吹灭蜡烛的效果。

同样应用声音方面原理的还有那个号称手机进水神器的软件Sonic Ⓥ。

打开之后是这个样子的，只要按一下中间那个水滴按钮，调大音量，就能排出部分水分。

调到某些频率时，手指贴近扬声器真的能感觉到有气流吹拂。

确实有网友反应好用，把濒临溺死的手机抢救了回来。

不过，要是当场开不开机，还是拿去手机店修吧……

同理，那些号称有着给手机「物理清灰」能力的app和视频，其实都是用不同频率的声音带动空气来达到所谓的清灰目的。

至于清理能力是否真的有效，那就说不好了。

目前，那款叫做Blower的app在苹果商店售价12块人民币，感兴趣的朋友可以买来试试，不过要是吹蜡烛的话，我干嘛不用嘴呢？

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卫申乳4389为什么水底下能点灯? -
盛映恒15287298428 ______ 因为蜡烛燃烧时蜡就化了,化了以后他就保护住了火,火不接触水,自然就不会灭拉

卫申乳4389蜡烛为什么能在水里燃烧 -
盛映恒15287298428 ______ 只要开始时那个蜡烛头高于水面就可以了 蜡烛燃烧后会形成一层膜... 因为水的温度很低故蜡烛最外层贴水的腊不会被燃尽会形成一个蜡筒,火焰会在里面燃烧,看上去就像在水里烧

卫申乳4389为何烛炬燃到水中还不熄
盛映恒15287298428 ______ 由于是在蜡水中,蜡水不会使烛炬熄灭

卫申乳4389把水倒入融化的蜡烛为什么点然
盛映恒15287298428 ______ 不会,因为:当蜡烛燃烧到接近水面的时候,水会浸入蜡烛,导致 1.蜡油降温凝固,无法向蜡烛芯继续输送蜡油,导致熄灭, 2.蜡烛芯的蜡油因降温达不到燃点也无法继续燃烧.

卫申乳4389蜡烛在水中(不受外力的情况)会熄灭吗???
盛映恒15287298428 ______ 不会,因为蜡烛受到向上的浮力.蜡烛燃烧一点,就会继续向上.

卫申乳4389点燃.为什么火不会灭,蜡烛变成漏斗形?把蜡烛头放在瓶里,把水倒到
盛映恒15287298428 ______ 这好像没有什么神奇的地方吧 水平面以上有氧气,水中的蜡烛的燃烧利用不了.这时火焰中心处永远低于蜡烛顶端四周(注意观察都能看到),它燃烧利用的也就是中心处的氧气了,形成的漏斗壁就如一个氧气的容器,供其燃烧

卫申乳4389为什么蜡烛产生的二氧化碳和水无法熄灭蜡烛? -
盛映恒15287298428 ______ 蜡烛燃烧产生的二氧化碳和水分散到广大的空间去了,如果用一个小玻璃罩把蜡烛扣好密封,过一会二氧化碳气体就可以把蜡烛熄灭了.

卫申乳4389为什么把蜡烛粘在盆底,倒上水(水不能淹没蜡烛)蜡烛的火能烧到水面下 -
盛映恒15287298428 ______ 因为蜡烛的主要成分是短链烯烃 ,属于有机物,很难溶于水.

卫申乳4389蜡烛燃烧时生二氧化碳和水,为什么没把火焰烧灭 -
盛映恒15287298428 ______ 蜡烛燃烧生成的二氧化碳和水量不多,在与周围环境中大量空气比较起来,量实在很小. 并且因为蜡烛燃烧时,周围的空气因为受热不均,会强烈对流,燃烧产生的废气会与新鲜空气不断进行气体交换,因此,火焰不会被烧灭.