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蠢哭!外国小哥带水平仪上飞机只为证明地球是平的
2017-09-18 08:01:40 中国青年网
【环球网综合报道】据英国《每日邮报》9月14日报道,近日,视频分享网站YouTube上的一则视频引发了网友议论。视频中,一名外国小哥因质疑地球是圆的,竟把自制的水平仪带到从美国北卡罗来纳州飞往西雅图市的飞机上,以便于实时观察水平仪的变化。最后,他以水平仪始终处于中央位置为证据,断言地球是平的。对此,网友们不禁调侃他“机智又愚蠢”,还建议他去看一看窗外弧形的地平线。
据悉,这则视频的制作者名为D·马布尔(D Marble),他自称是一名“现实主义者”,因对“地球是圆的”这一科学论断心存质疑,所以便把自制的水平仪带上飞机进行证实。他认为,如果地球是圆的,那么飞机在飞行过程中必然会因地球的曲线而出现相应的倾斜。然而,在他所录制的视频中,水平仪始终位于中央位置,因此他断言地球是平的。
在视频中,马布尔表示:“如果我们生活在一个旋转的球体上,根据数学曲率可知,飞机在飞行时必然会经常俯身前行。我一共录制了23分45秒的视频,通过测算可知,飞机飞行了逾203英里(约327千米)。按照曲率推算可知,这会产生5英里(约8千米)的曲线。但是,正如大家将看到的那样,并没有出现任何可测量的曲线。”对此,网友布莱恩?莱文森(Brian Levinson)留言写道:“真让人震惊!飞机在起飞和降落时的水平度竟然保持在100%,我开始怀疑飞机是否真的起飞了。”
针对水平仪始终位于中央位置这一现象,科技记者哈里·佩蒂特(Harry Pettit)给出了解释:为抵消重力,飞机在空中飞行期间会不断通过两侧机翼向上进行“拉升”。此外,飞机可以始终保持在同一高度,故无需调整飞行角度。这就像汽车在路面上向右转小弯时,司机只要轻微转动车轮便可顺利转弯一样,飞机在适应地球曲线时的调整也极小。所以,只有使用精密的陀螺仪才能进行测量,而通过在市面上购买的水平仪是根本无法测量出来的。
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