顾家北预测班课件space technology

1、Feb2014/Column: Is space exploration worth the money? （值得投资）Might the money spent on space exploration 太空探索（ byernments and scientificinstitutes be better used for “real world” problems? Conor Farrell takes a look.HIS AGE of global austerity（紧缩政策） were all taking a bit more care when wespend our mon

2、ey, but were also probably more aware of the money spent byernments and scientific institutes（科研组织） around the world and wonder if itcould be spent in a better manner to help with “real world” problems.Spacience（空间学） and astronomy（天文学） is no exception to this, and a lot ofmoney is spent researching

3、and develo escopes and spacecraft （望远镜与飞船） would the billions of euro spent to run theernational Spaion not be better usedto alleviate worldger （减轻世界饥荒）, for exle?Spin-oenefits 附带利益When we look at space miss（太空任务）, its very easy to thinkt the only goaland result is to simply get somethingo space, an

4、dtsof it. We dont oftenthink of the spin-oenefitst space exploration and astronomy give us, even thoughwe depend on them all the time., acs to space itself was largely the result of theresearch and development of ballistic rockets during World War II, and moderncommunicationch as the salites in spac

5、e.ernet and TV have grown to what they are nownks toIf you watch the skies a lot, you may sometimes spot a very bright salite suddenly appear then fade out as it moves through the sky. These are Iridium salites, developedby Motorola,t provide coverage to salite phones and pagers all over the world.这

6、些是由摩托罗拉公司开发的铱星，它提供和传呼机在全世界的覆盖。Another benefit of space exploration ist we can monitor our own planet from adistance. The European Space Agencys Earth Observation miss provide crul andreal-time information（实时信息） about flooding, bush fires, volcanic activity, drought,and health of crops. Without these

7、 “eyeshe sky” it would be extremely difficult towatch these important things, espelly imes of emergency （紧急时刻）.Spacecraft and astronomical equipmentEven the development of spacecraft and astronomical equipmenspin-off technology（衍生科技）. You know those shiny bagss delivered lots oft hikers and cersput

8、in aid kits （急救包） to keep somearm in an emergency? Those spaceblets weredeveloped in 1964 by NASA for use in spacecraft. The material isresistant to big temperature changes （能耐受大的温度变化） and helps to keep gasestrapped in one place, which is useful when workinghe vacuum of space.t shiny t gavesheet in

9、aaid kit is similar to the stuff used on the Apollo moon landersthem their reflective gold colour.Feeding an astronaut in space is muore difficultn eating on Earth. As well ascrumbs floating about and getting stuck in equipment, its also tricky to keep food andsurfacompley bacteria-free （完全无菌）(you c

10、ant nip down to the shop to getsome kitchen wipes, or pay a visit to the doctor if you get food poisoning （食物时，去看医生）, when youre 300km above the Earthrface for months on end). NASAemployed th the Hazardllsbury Company to tackle these problems, and the company developedysis and Critical Control Pocon

11、cept. This is more commonly knownas HA, and is a standard in food safety used all over the world in restaurants, delis,and food preparation factories.Digital mammography is a technique used by some medical centres for breast cancer screening. Instead of using more hazardous x-rays to inspect the bre

12、asts, this techniquecaptures electrical signals from the tie and uses computers to build up a muoreversatile image for the doctors. The technology used in digital mammography wasdeveloped for use he Hubble Spaceescope（哈勃太空望远镜）.Spacience is relatively inexpensiveIn 2013, the entire budget of the Euro

13、pean Space Agency was almost 4.3 billion, to which Ireland contributed just over 17 million. This might seem like a lot of money toyou and me, but its just a drophe ocean （沧海一粟）when we thinkerms ofnational budgets （国家财政） and bbailouts, and a mere fraction of the moneyset aside for things like war (I

14、relands military expenditure in 2012 was over about 840million, and about 1.2 trillion for the entire world). Spainexpensive.cience iually ratherNext month the man responsible for the design and construction of the detectort foundthe famous Higgson in 2012he Large Hadron Collider (LHC) will give a t

15、alk forAstronomy Ireland in Dublin. This experimens a budget of about 7.5 billion, themost expensive scientific experiment ever undertaken. But even aside from the physicsresults the LHC and CERN will give, the technology and researchhe construction ofthe facility has helped us to develettarticle ac

16、celerators to be usededicine,particularlyreating cancer. In fact, the World Wide Web nks to which you arereading this article now was invented at CERN in 1990 to aid for communicationsbetn scientists working there.I think its very good to ask ourselves if we should be spending money on spaceexplorat

17、ion.feel more money should be spent on a global level to sort out theworlds societal problems? Absoluy, I do.beve space exploration andastronomy funding should be cut to dot? No way. As weve seen, spacience isvery low cost when compared to other expenses, and even formoney, we get a lot of return（得到

18、很多收益） and benefitsprogress of society（帮助社会进步） and humanity as a whole.t “small” amount oft directly help theTechnology for everyoneIf we were to take Europes space exploration budget and use it to feed starving children（喂饱饥饿的儿童）around the world, yes it would certainly help, but it would not fixthe p

19、roblem food. Wed also be left with no way to effectively monitor cropproduction or natural disasterst would be vital to the survival of those disadvantagedpeople. On the contrary, if we were to increase expenditure in spacience (and sciencein general) I have no doubtt the rewards to humanity would b

20、e vast.Astronomy and spa credit to the factcience are there largely for research pures, but we must givet they are cutting edge fields and always demand new technology bedeveloped providing research and employment opportunities（提供研究与就业的机会） whichurn can be used by everyday people like you and me, for

21、 our ownbenefit and to help others around the world who arent as lucky as we are.里面说了太空科技几个好处：1 发展，为全球提供支持These are Iridium salites, developed by Motorola, phones and pagers all over the world.t provide coverage to salite2地球，处理事件The European Space Agencys Earth Observation miss provide crul and real-timeinformation（实时信息） about flooding, bush fires, volcanic activity, drought, and health of crops.3 发展衍生科技一些材料让人们在事故中保暖Those shiny bagst hikers and cers put in aid kits （急救包）to keepsomearm in an emergency抗菌的食物keep food and surfacompley bacteria-free （完全无菌）哈雷望远镜的技术用于检查乳癌Digital m