Steve Jurvetson: The joy of rockets

翻译人员: dahong zhang 校对人员: Teng Zhao

By day, I'm a venture capitalist.

平日里，我是一个风险投资家。周末，我喜欢玩玩火箭。

On weekends, I love rockets.

我热爱摄影，热爱火箭，

I love photography, I love rockets.

I'm going to talk about a hobby that can scale

我要向大家讲讲这个可大可小的业余爱好

同时展示一下这些年来我拍的照片

and show you photos I've taken over the years

和这样的孩子一起拍的，这些孩子长大后会热爱火箭技术，

with kids like these, that hopefully will grow up to love rocketry

可能长大后会成为Richard Branson或Diamandis这样的人(二人是民间太空飞行爱好者)。

and eventually become a Richard Branson or Diamandis.

My son designed a rocket that became stable, a golf ball rocket.

我儿子设计了一枚稳定的

高尔夫球火箭。我认为是对火箭科学原理的有趣实践，

I thought it was quite an interesting experiment

高尔夫球火箭。我认为是对火箭科学原理的有趣实践，

in the principles of rocket science.

飞得像箭一样直。

And it flies straight as an arrow.

Baking soda and vinegar.

小苏打和醋。(醋碱中和产生二氧化碳推进火箭)

Night shots are beautiful,

夜间发射非常美丽，

piercing the Big Dipper and the Milky Way.

直刺云霄。

2-stage rockets with video cameras on them,

二级火箭，火箭上有摄像头，

搭载的计算机进行飞行记录。

onboard computers logging their flights, rocket gliders that fly back to Earth.

火箭滑翔机飞向地面。

I use RockSim to simulate flights before they go

我用Rocksim（火箭弹设计软件）模拟飞行即将发射的火箭，

看看它们会不会突破音速，

to see if they'll break supersonic,

then fly them with onboard computers to verify performance.

然后用火箭搭载计算机控制飞行，验证火箭的性能。

To launch the big stuff, you go to the middle of nowhere:

不过要发射真正的大家伙，就要到常有险情发生的黑岩沙漠腹地

不过要发射真正的大家伙，就要到常有险情发生的黑岩沙漠腹地

Black Rock Desert, where dangerous things happen.

男孩子们在长大，火箭也随之变大。

The boys and the rockets get bigger.

他们用的发动机

They use motors used on cruise-missile boosters.

他们实际上用的是巡航导弹的助推火箭。

They rumble the belly and leave even photographers in awe,

火箭隆隆作响发射，使得摄影师也震惊观看着壮观的场面。

watching the spectacle.

火箭隆隆作响发射，使得摄影师也震惊观看着壮观的场面。

These rockets use experimental motors like nitrous oxide.

这些火箭使用试验性发动机如氮氧发动机。

They use solid propellant most frequently.

他们最常用的是固体燃料发动机。

It's a strange kind of love.

这是一个奇怪的喜好。

RocketMavericks.com with my photos, if you want to learn about this,

我们有个Rocketmavericks.com网站，上面有我的照片，

如果您想了解详情 -- 参与，成为一名观众。

participate, be a spectator.

We had to call it Rocket Mavericks.

标新立异者。我们称之为火箭标新立异者。

This one was great, went to 100,000 feet -- but didn't quite.

这枚火箭很棒。它飞到10万英尺(30公里)高，

不过也不十分完美，实际上，它扎进土里11英尺(4米)深，

Actually, it went 11 feet into solid clay and became a bunker-buster.

成了一颗地堡炸弹（bunker-buster），

钻到土里去了，还得把它挖出来。

It had to be dug out.

Rockets often spiral out of control if you put too much propellant in them.

如果加注太多推进剂，火箭经常会急速上升，失去控制。

这是一个短程高速汽车赛。

Here was a drag race.

在晚上，您可以看到瞬间发生了什么，

At night you can see what happened in a second;

在白天，我们称之为陆地鲨鱼。

in daytime, we call them land sharks.

Sometimes they just explode before your eyes or come down supersonic.

有时，火箭会在你眼前爆炸，或者以超音速的速度扎下来。

（笑声）

(Laughter)

To take this shot, I did what I often do, which is go way beyond the pads,

为了拍这镜头，我和往常一样，

远离发射台，找个没有其他观众的地方。

where none of the spectators are.

如果我们播放这段视频，我会展示给大家是如何拍摄这些“梦工厂”般的镜头的。

And if we can run the video, I'll show you what it took

如果我们播放这段视频，我会展示给大家是如何拍摄这些“梦工厂”般的镜头的。

to get this DreamWorks shot.

(Video) Voices: Woo-hoo! Yeah. Nice.

视频：声音：Yeah.不错。

Steve Jurvetson: They realize the computer failed, they're yelling "Deploy!"

Steve Jurvetson: 这是罕见的。这里他们意识到计算机出故障了。

他们大叫着. 声音：糟糕。

(Video) Man: Oh, shit.

SJ: This is when they realize everything's gone haywire.

SJ：这时他们意识到火箭搭载的设备都失控了。

声音：它发威失控了。糟糕。

(Video) Man: It's going ballistic.

SJ：我只是不出声。

声音：不。

SJ: I'll just be quiet.

(Video) Woman: No!

Come on, come on, come on.

向上，向上，向上。

SJ: And that's me over there, taking photos the whole way.

SJ：我在那里，拍下了整个过程。

Things often go wrong.

事情常会出错。

Some people watch this because of a NASCAR-like fascination

有些人观看这类事故是因为着迷于类似于NASCAR（全国运动汽车竞赛协会）

with things bumping and grinding.

看火箭的撞地，粉碎，落下时降落伞燃烧

Burning the parachute as it fell. That was last weekend.

这是在上周末。

这枚火箭飞上天，突破音速，扯掉了尾翼，

This guy went up, went supersonic, ripped the fin can off.

（碎片四散在空中）像开拍卖会一样，

The art sale in the sky.

燃烧的金属碎片落下。

A burning metal hunk coming back.

These things dropped down from above all through the weekend

整个周末都会有这类东西掉下来

一遍遍的火箭发射，火箭发射，火箭发射。

of rocket launch after rocket launch.

节奏之快是你不能想象的。

It's a cadence you can't quite imagine.

很多方面，我设法捕捉到这类事故

I try to capture the mishaps; it's a challenge in photography

从摄影方面来讲，拍下这些瞬间发生的事情确实是个挑战。

when these things take place in a fraction of a second.

从摄影方面来讲，拍下这些瞬间发生的事情确实是个挑战。

Why do it? For things like this:

他们为什么干这个？是为了这类东西：

Gene from Alabama drives out there

从阿拉巴马州来的Gene驱车来到这里

with this rocket he's built with X-ray sensors, video cameras,

带着他造的火箭，上面装有X射线传感器，视频摄像头，

festooned with electronics.

装有电子设备，成功的飞到10万英尺(30公里)高度，

He succeeds getting to 100,000 feet,

leaving the atmosphere, seeing a thin blue line of space.

飞离了大气层，看到了一线蓝色的太空。

这是激动人心的图片

It is this breathtaking image -- success, of course -- that motivates us

成功，当然， 激励着我们。

and motivates kids to follow and understand rocket science,

同时激励孩子们接受和理解火箭科学，

understand the importance of physics and math

了解到物理和数学的重要性，

and, in many ways, to have that awe at exploration

很多方面多少对探索未知前沿产生敬畏。

很多方面多少对探索未知前沿产生敬畏。

of the frontiers of the unknown.

Thank you.

谢谢。

(Applause)

（掌声）