隱身并非天方夜譚
It's unlikely to occur by swallowing a pill or donning（1） a special cloak（2）, but invisibility could be possible in the not too distant future, according to research published on Monday.
But Dr Ulf Leonhardt, a theoretical physicist at St Andrews University in Scotland, believes the most plausible（3） example is the Invisible Woman, one of the Marvel Comics superheroes in the "Fantastic Four."
"She guides light around her using a force field in this cartoon. This is what could be done in practice," Leonhardt said. "That comes closest to what engineers will probably be able to do in the future."
Invisibility is an optical illusion that the object or person is not there. Leonhardt uses the example of water circling around a stone. The water flows in, swirls（4） around the stone and then leaves as if nothing was there.
"If you replace the water with light then you would not see that there was something present because the light is guided around the person or object. You would see the light coming from the scenery behind as if there was nothing in front," he said.
"What the Invisible Woman does is curve（5） space around herself to bend light. What these devices would do is to mimic（6） that curved space," he said.
Although the devices are still theoretical, Leonhardt said scientists are making advances in metamaterials —— artificial materials with unusual properties that could be used to make invisibility devices.
"There are advances being made in metamaterials that mean the first devices will probably be used for bending radar（7） waves or the electromagnetic（8） waves used by mobile phones," he said.
The devices could be used as protection mechanisms so the radiation emitted（9） from mobile phones does not penetrate（10） electronic equipment. It is guided around it.
"It is very likely that the demonstration for radar would come first and very soon. To go into the visual will take some time but it is also not so far off," Leonhardt said.
1. don:穿上
2. cloak:披風(fēng)
3. plausible:似乎合理的
4. swirl:盤(pán)繞
5. curve:彎曲
6. mimic:效仿
7. radar:雷達(dá)
8. electromagnetic:電磁的
9. emit:放射
10. penetrate:穿透
周一發(fā)布的一項(xiàng)研究說(shuō)隱身也許能在不久的將來(lái)實(shí)現(xiàn),但也許不是吞下一片藥或者披上一件斗蓬那樣簡(jiǎn)單。
蘇格蘭圣安德魯斯大學(xué)理論物理學(xué)家厄弗。萊奧哈德說(shuō)最貼近現(xiàn)實(shí)的應(yīng)該是《神奇漫畫(huà)》中《神奇四俠》里面的超級(jí)英雄—隱身女。
萊奧哈德說(shuō):“漫畫(huà)中,她利用能量場(chǎng)引導(dǎo)周?chē)墓饩€。這與未來(lái)工程師們要做的事情很相似?！?BR> 所謂的隱形是一種視覺(jué)幻象,使人認(rèn)為物體或者人不在那里。萊奧哈德用水繞過(guò)石頭的例子來(lái)說(shuō)明:水流遇到石頭后會(huì)自動(dòng)分流繞過(guò)石頭,之后再匯合,猶如什么都沒(méi)有遇到過(guò)一樣繼續(xù)前進(jìn)。
他說(shuō):“如果你把水換成光線,由于光線被引導(dǎo)繞開(kāi)了人或者物體,你將看不到那兒有什么東西。你所能看見(jiàn)的是來(lái)自物體背后的光線,就好像前面什么都沒(méi)有一樣。”
他說(shuō):“隱身女通過(guò)扭曲身邊的空間來(lái)彎曲光線。所有這些裝置都用于模擬被彎曲了的空間?！?BR> 萊奧哈德說(shuō)盡管這些裝置還只存在于理論中,但是科學(xué)家們已經(jīng)在一種被稱(chēng)為“超材料”的物質(zhì)上取得進(jìn)展。這種人造物質(zhì)擁有特殊的屬性,可以用于制作隱身裝置。
他說(shuō):“在超物質(zhì)方面的進(jìn)展意味著第一批隱身裝置將用于彎曲雷達(dá)電波或者手機(jī)使用的電磁波?！?BR> 這種裝置將是一種保護(hù)機(jī)制,使手機(jī)輻射繞開(kāi)其他電器,而不是穿透它們。
萊奧哈德說(shuō):“針對(duì)雷達(dá)的實(shí)驗(yàn)可能會(huì)最先進(jìn)行,并且就在不遠(yuǎn)的將來(lái)。至于何時(shí)能應(yīng)用于視覺(jué),我們還需要等待,但也不會(huì)太久了?！?BR>
It's unlikely to occur by swallowing a pill or donning（1） a special cloak（2）, but invisibility could be possible in the not too distant future, according to research published on Monday.
But Dr Ulf Leonhardt, a theoretical physicist at St Andrews University in Scotland, believes the most plausible（3） example is the Invisible Woman, one of the Marvel Comics superheroes in the "Fantastic Four."
"She guides light around her using a force field in this cartoon. This is what could be done in practice," Leonhardt said. "That comes closest to what engineers will probably be able to do in the future."
Invisibility is an optical illusion that the object or person is not there. Leonhardt uses the example of water circling around a stone. The water flows in, swirls（4） around the stone and then leaves as if nothing was there.
"If you replace the water with light then you would not see that there was something present because the light is guided around the person or object. You would see the light coming from the scenery behind as if there was nothing in front," he said.
"What the Invisible Woman does is curve（5） space around herself to bend light. What these devices would do is to mimic（6） that curved space," he said.
Although the devices are still theoretical, Leonhardt said scientists are making advances in metamaterials —— artificial materials with unusual properties that could be used to make invisibility devices.
"There are advances being made in metamaterials that mean the first devices will probably be used for bending radar（7） waves or the electromagnetic（8） waves used by mobile phones," he said.
The devices could be used as protection mechanisms so the radiation emitted（9） from mobile phones does not penetrate（10） electronic equipment. It is guided around it.
"It is very likely that the demonstration for radar would come first and very soon. To go into the visual will take some time but it is also not so far off," Leonhardt said.
1. don:穿上
2. cloak:披風(fēng)
3. plausible:似乎合理的
4. swirl:盤(pán)繞
5. curve:彎曲
6. mimic:效仿
7. radar:雷達(dá)
8. electromagnetic:電磁的
9. emit:放射
10. penetrate:穿透
周一發(fā)布的一項(xiàng)研究說(shuō)隱身也許能在不久的將來(lái)實(shí)現(xiàn),但也許不是吞下一片藥或者披上一件斗蓬那樣簡(jiǎn)單。
蘇格蘭圣安德魯斯大學(xué)理論物理學(xué)家厄弗。萊奧哈德說(shuō)最貼近現(xiàn)實(shí)的應(yīng)該是《神奇漫畫(huà)》中《神奇四俠》里面的超級(jí)英雄—隱身女。
萊奧哈德說(shuō):“漫畫(huà)中,她利用能量場(chǎng)引導(dǎo)周?chē)墓饩€。這與未來(lái)工程師們要做的事情很相似?！?BR> 所謂的隱形是一種視覺(jué)幻象,使人認(rèn)為物體或者人不在那里。萊奧哈德用水繞過(guò)石頭的例子來(lái)說(shuō)明:水流遇到石頭后會(huì)自動(dòng)分流繞過(guò)石頭,之后再匯合,猶如什么都沒(méi)有遇到過(guò)一樣繼續(xù)前進(jìn)。
他說(shuō):“如果你把水換成光線,由于光線被引導(dǎo)繞開(kāi)了人或者物體,你將看不到那兒有什么東西。你所能看見(jiàn)的是來(lái)自物體背后的光線,就好像前面什么都沒(méi)有一樣。”
他說(shuō):“隱身女通過(guò)扭曲身邊的空間來(lái)彎曲光線。所有這些裝置都用于模擬被彎曲了的空間?！?BR> 萊奧哈德說(shuō)盡管這些裝置還只存在于理論中,但是科學(xué)家們已經(jīng)在一種被稱(chēng)為“超材料”的物質(zhì)上取得進(jìn)展。這種人造物質(zhì)擁有特殊的屬性,可以用于制作隱身裝置。
他說(shuō):“在超物質(zhì)方面的進(jìn)展意味著第一批隱身裝置將用于彎曲雷達(dá)電波或者手機(jī)使用的電磁波?！?BR> 這種裝置將是一種保護(hù)機(jī)制,使手機(jī)輻射繞開(kāi)其他電器,而不是穿透它們。
萊奧哈德說(shuō):“針對(duì)雷達(dá)的實(shí)驗(yàn)可能會(huì)最先進(jìn)行,并且就在不遠(yuǎn)的將來(lái)。至于何時(shí)能應(yīng)用于視覺(jué),我們還需要等待,但也不會(huì)太久了?！?BR>