把垃圾扔到太阳上 有可能但不太可行
时间:2016-03-12 05:49:54
(单词翻译:单击)
On BBC Radio 4, Drs Adam Rutherford and Hannah Fry have been answering intriguing1 scientific questions from listeners and the BBC Future audience.
在BBC广播4频道,广播听众和BBC《未来》栏目的观众就一些有趣的科学问题进行提问,亚当·卢瑟福博士和汉娜·弗莱博士给予相应的回答。
One
vexing2 query3 the pair have been exploring rocketed in from Elisabeth Hill, via BBC Future's Facebook page, who asked: "Could we shoot garbage into the Sun?"
Fair question. After all, if we can detect gravitational waves, or send a probe to land on a comet, surely we can send some rubbish to our nearest star?
Though as Rutherford and Fry discovered in the radio episode, it's not so simple:
The primary problem is weight. The average person in the UK produces 1.85kg of waste per day; in the US, it's 2.3kg.
As Andrew Pontzen of University College London points out, it costs $200m to get the Ariane V rocket into an orbit ready to travel further into space. With a payload of approximately 7,000kg, that works out at around $41,000 per kilogram. A hefty price to pay for a few plastic wrappers and a bottle or two.
So, theoretically possible? Yes. But realistically desirable? Probably not.
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收听单词发音
1
intriguing
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| adj.有趣的;迷人的v.搞阴谋诡计(intrigue的现在分词);激起…的好奇心 |
参考例句: |
- These discoveries raise intriguing questions. 这些发现带来了非常有趣的问题。
- It all sounds very intriguing. 这些听起来都很有趣。 来自《简明英汉词典》
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2
vexing
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| adj.使人烦恼的,使人恼火的v.使烦恼( vex的现在分词 );使苦恼;使生气;详细讨论 |
参考例句: |
- It is vexing to have to wait a long time for him. 长时间地等他真使人厌烦。 来自《现代英汉综合大词典》
- Lately a vexing problem had grown infuriatingly worse. 最近发生了一个讨厌的问题,而且严重到令人发指的地步。 来自辞典例句
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3
query
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| n.疑问,问号,质问;vt.询问,表示怀疑 |
参考例句: |
- I query very much whether it is wise to act so hastily.我真怀疑如此操之过急地行动是否明智。
- They raised a query on his sincerity.他们对他是否真诚提出质疑。
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