首页
登录
职称英语
[originaltext] Good afternoon, everyone. Today, I’ll talk about how autonomo
[originaltext] Good afternoon, everyone. Today, I’ll talk about how autonomo
游客
2023-08-05
40
管理
问题
Good afternoon, everyone. Today, I’ll talk about how autonomous flying taxis could change the way you travel. Cities are getting more populated. The roads are full, and it’s really difficult to expand them. And so in a lot of places, there really aren’t a lot of good solutions for getting around traffic. But what if you could fly over it? The sky is underutilized, and I would argue it will never be as congested as the roads are. In many cases, flying can be a long-term, compelling alternative to traveling on the ground.
One of the first things we need is an aircraft that can take off and land in small spaces and quickly take you where you want to go. And helicopters can do that today, but traditionally, helicopters have been just a little bit too expensive, just a little too hard to pilot and just a little too noisy to be used for daily transportation in cities. Well, electric flight and autonomy are changing that.
Electric flight, in particular, unlocks new possibilities for vehicle configurations that we just could not explore in the past. If you use electric motors, you can have many of them around the aircraft, and it doesn’t add a lot of extra weight. And that gives you redundancy and safety. And also, they are cleaner, cheaper and quieter than internal combustion engines. Autonomy allows the transportation network to scale, and I actually think it makes the aircraft safer. Commercial flights are already automated for most of their duration, and I believe there will come a day when we won’t even trust an airplane that required a human to fly.
So, one of our teams at A3 wanted to see just how close this future really was. So they built and flew a prototype of one such vehicle. And they made a point of only using mature, commercially available technologies today. We call it Vahana. It’s fully electric. It takes off and lands vertically, but flies forward like a regular airplane. It’s fully self-piloted. You push a button, and it takes off, flies and lands, all by itself. The prototype that you see here is designed to carry a single passenger and luggage. And it can go about 20 miles in 15 minutes. And our estimate for a trip like that is it would cost around 40 dollars, which you can really build a business around.
Question 16. Why does the speaker say traditional helicopters are not fit for daily transportation?
Question 17. What do we learn about electric flight and autonomy?
Question 18. What do we learn about Vahana?
选项
A、Because they cannot land at random.
B、Because they are not safe enough.
C、Because they are hard to refuel.
D、Because they make noises.
答案
D
解析
转载请注明原文地址:http://tihaiku.com/zcyy/2898181.html
相关试题推荐
[originaltext]M:Hello,andwelcometoourprogram"WorkingAbroad".Ourguest
[originaltext]M:Hello,andwelcometoourprogram"WorkingAbroad".Ourguest
[originaltext]M:Hello,andwelcometoourprogram"WorkingAbroad".Ourguest
[originaltext]M:Hello,andwelcometoourprogram"WorkingAbroad".Ourguest
[originaltext]M:Hello,andwelcometoourprogram"WorkingAbroad".Ourguest
[originaltext]W:Tellme,Peter.WhatmakesHaroldssofamous?M:Well,it’sth
[originaltext]W:Tellme,Peter.WhatmakesHaroldssofamous?M:Well,it’sth
[originaltext]W:Tellme,Peter.WhatmakesHaroldssofamous?M:Well,it’sth
[originaltext]M:Hi,Mary.Doyouwanttostartwritingalabreportafterwef
[originaltext]M:Hi,Mary.Doyouwanttostartwritingalabreportafterwef
随机试题
Oneresearchhasshownthatpublicschoolteachersreceivesalariesalmostt
Passage1[originaltext]女士们,先生们,欢迎参加第二届餐饮博览会。餐饮博览会是推动中外餐饮文化交流的重要窗口。餐饮业在我国已有几千年的历
Whatdoesitmeanbymentioning"oppositesidesoftheworld"?[originaltext]
_____Ican’thelpadmiringtheman’scourage,Idonotapproveofhismethods.A
下列关于钢化玻璃特性的说法,正确的有( )。A.使用时可以切割 B.可能发生
银行对项目环境条件分析时,( )不属于项目建设条件中的运输条件分析的内容。A.
(2020年真题)相对于行业自律、内部控制和社会力量监督,股权投资基金的政府监管
A.增加心输出量而利尿 B.抑制髓袢升支粗段稀释和浓缩功能 C.抑制远曲小管
下列选项中,不属于建筑消防设施主要作用的是()。A.确保建筑内人员的安全 B
下列药品中,在药品标签和说明书中不需要印有特殊标识的是()。A.麻醉药品和
最新回复
(
0
)