一个卓越的演讲稿具有深远的影响力，能够激发听众的深层情感，演讲稿是一名演讲者的参考工具，可以在演讲过程中提供支持和方向，以下是82秘书网小编精心为您推荐的发明类的演讲稿6篇，供大家参考。

发明类的演讲稿篇1

尊敬的老师们，亲爱的同学们：

大家好!

科学是现代社会不可缺少的一环。他是无处不在，小至在我们身边，大至充满神秘色彩的宇宙，是多么让人向往，我也深深地爱上科学。

我爱科学，更爱寻找科学。在我外公家养了三箱蜜蜂。那里，便成了我寻找科学的一个据点。在那里，我观赏过“工蜂运花粉”，“蜂后出巡”和“大战黄蜂”等精彩镜头。使我记忆最深的是“大战黄蜂”。那天，我和外公正为蜜蜂喂糖浆。当小蜜蜂正吃得津津有味的时候，不知从哪儿出来了一只黄蜂。它像一支利箭，向蜂群冲来。我和外公马上后退几步，隔岸观火。刚开始，黄蜂锐不可挡，来一只工蜂就杀一只，一下子十来只工蜂就命丧黄泉。可是后来一大勇敢群工蜂就一拥而上，把黄蜂重重包围，还不停地扇翅膀，发出“翁翁”的声音。过了一会儿，工蜂散开了，只留下了黄蜂的尸体。

我感到很疑惑，回到家就开始寻找答案。我把家里的关于科学的书全找出来，接下来我就苦了。我将要把眼前的这一堆书全翻一次。我在这困难的时候，虽然很想放弃，但是我爱科学的心始终在鼓励我前进。于是，我就狠下心来，花了一个下午的时间看书，可是毫无收获。我开始心灰意冷，当看见身边的电脑，一条锦囊妙计变冲上心来――上网。说干就干，我马上进入因特网，想在茫茫网海中找到答案。

黄天不负有心人，我中于找到答案。原来工蜂扇翅膀是为了增高温度来热死黄蜂。根据资料显示：黄蜂能忍受43慑氏度的高温，工蜂却能忍受45慑氏度的高温。当温度升到43慑氏度的时候，黄蜂已经死了，而工蜂仍能生存，这就是工蜂获胜的关键。哇!当我靠自己找到答案的时候，我真的高兴得不得了。

发明类的演讲稿篇2

in the early nineteenth century, people began to use gas (gaslight), but the gas pipeline supply by a leak or blockage, very easy to have an accident, people for illumination of reform, very ardent.in fact, edison for himself set the mission impossible: in addition to improve lighting, but also of thomas edison electric light create a set of power supply system.

and he and the dream luoyuan buddies, sleepless do 1600 repeatedly heat-resistant material and more than 600 plant fiber experiment, only produced the first carbon wire bulb, can a burning 45 hours.later he more on this basis, the method of continuous improvement manufacture can ignite 12 hours finally came out with the zhusi bulbs.

the 19th century the 1980s, edison electric light career succeeded, this success than any previous achievements brought him reputation.in the 1980s, before he had little mistake, intermediate later, although he has made great achievements, but also common occurance of failure.edison's most not commendable actions is one of his criticism alternating current, say it has side effects, likely cause of death and injury, but he did not add details.so somebody said, "as he such a mess out many inventions that people about others' new invention saurday attack, this is very contradictory things." he opposes the use of alternating current and direct current, so the approve a fierce debate and stubborn in failure.

in this respect, reflects the edison became a celebrity after the stubbornness of started to foster old-fashioned shortcomings.

发明类的演讲稿篇3

knowledge is one thing, virtue is another; good sense is not conscience,refinement is not humility, nor is largeness and justness of view faith.philosophy, however enlightened, however profound, gives no command over thepassions, no influential motives, no vivifying principles.

liberal education makes not the christian, not the catholic, but thegentleman. it is well to be a gentleman, it is well to have a cultivatedintellect, a delicate taste, a candid, equitable, dispassionate mind, a nobleand courteous bearing in the conduct of life--these are the connatural qualitiesof a large knowledge; they are the objects of a university; i am advocating, ishall illustrate and insist upon them; but still, i repeat, they are noguarantee for sanctity or even for conscientiousness, they may attach to the manof the world, to the profligate, to the heartless, pleasant, alas, andattractive as he shows when decked out in them. taken by themselves, they do butseem to be what they are not; they look like virtue at a distance, but they aredetected by close observers, and on the long run; and hence it is that they arepopularly accused of pretense and hypocrisy, not, i repeat, from their ownfault, but because their professors and their admirers persist in taking themfor what they are not, and are officious in arrogating for them a praise towhich they have no claim. quarry the granite rock with razors, or moor thevessel with a thread of silk, then may you hope with such keen and delicateinstruments as human knowledge and human reason to contend against those giants,the passion and the pride of man.

发明类的演讲稿篇4

in our life,there are many great inventions,such as the light,thepencil,the the age of 6,my father brought a car,he took me to school onthe first day of was so exciting.i fell in love with this invention onthat car can go anywhere and save time,but it also pullutes ourenvironment.i holp i can invent clean cars.i hope the cars will enter everyfamily,and i love cars best.

发明类的演讲稿篇5

in the matter of courage we all have our limits. there never was a hero whodid not have his bounds. i suppose it may be said of nelson and all the otherswhose courage has been advertised that there came times in their lives whentheir bravery knew it had come to its limit.

i have found mine a good many times. sometimes this was expected--often itwas unexpected. i know a man who is not afraid to sleep with a rattle-snake, butyou could not get him to sleep with a safety-razor.

i never had the courage to talk across a long, narrow room. i should be atthe end of the room facing all the audience. if i attempt to talk across a roomi find myself turning this way and that, and thus at alternate periods i havepart of the audience behind me. you ought never to have any part of the audiencebehind you; you never can tell what they are going to do.

i'll sit down.

中文：

在勇气问题上，人人都有极限。从来就没有胆大包天的英雄好汉。我想，可以说，纳尔逊和所有那些被大量宣传的勇士，一生中都有勇气达到极限的时候。

我就多次发现自己的勇气到了极限。有时是意料之中的——经常是出乎意料的。我认识一个人。此君不怕与响尾蛇同寝，可你无法让他与保安剃刀共眠。

我从来就没有勇气在狭长房间的中央发表讲话。我得站在房间的一头，面对全体听众。如果我试图站在房间中央讲话，我就会不断地转身，这样，就不断有部分听众在我背后。你们永远不能让自己背后有听众；你们永远闹不清他们要干什么。

我得坐下了。

发明类的演讲稿篇6

what is my favorite invention?

we knew there had been many inventions at the last century, for example,electric light bulb, telephone, phonograph, mimeograph machine, automobile,airplane, atomic weapon, computer and so on. what is my favorite invention?

personally, my favorite invention should be computer. in the old days, manyscientists took much time to calculate and deal with research data, so theeffective time in doing research was relatively shortened. for millions of timesof calculating per second by computer, the researchers may have enough time tostudy more important issues. the processing of experiment results became verysimple and easy. aren’t those all evidences that the computer is one of thegreatest inventions in the last century, are those?