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ابزارهای یادگیری هوش مصنوعی را باز کنید
ثبتنام کنید تا به ابزارهای قدرتمندی دسترسی پیدا کنید که به شما کمک میکنند سریعتر از هر ویدیو یاد بگیرید.
Amazing Invention- This Drone Will Change Everything
آمار یادگیری
سطح CEFR
سختی
زیرنویسها (620 بخشها)
- I cut my finger making lunch, so I placed an order
for some band-aids a couple minutes ago,
and now they're four seconds away.
(drone whirs)
(bag plops on deck)
That is a nearly silent drone system that can
deliver a package from the sky right to my backyard
in as little as two minutes with dinner plate accuracy.
And as far as I am concerned,
that's basically teleportation.
This is the very near future
of package delivery from a company called Zipline.
It's been over a decade since we were first
promised drone delivery that looked like this.
And to be honest, I was never that stoked about it,
because I couldn't imagine that anyone
would actually want something that big and loud
with dangerously fast spinning propellers
landing anywhere near their house.
And that was a bummer, 'cause with the explosion
of people using Amazon or food delivery apps
like DoorDash or Instacart, billions of doorstep deliveries
are now happening every year.
But when your lunch only weighs a few ounces
driving it to everyone with these two-ton,
gas-powered vehicles is wildly inefficient,
bad for the whole planet, and not to mention
just really slow.
Drone delivery would not only
take a lot of cars off the road,
but it would be a lot faster than a car,
it would be fully electric, fully autonomous,
and it would cost pennies worth of energy per delivery.
And with Zipline, because the droid that lowers the package
can move laterally in any direction, it could make
a dartboard-sized precision landing even in high winds,
while the main drone can stay 400 feet up in the sky,
making the whole thing whisper quiet.
(drone makes high pitched whistle)
That is very quiet.
Also due in part to the clever design
of these really funky propellers.
As you all know, I only make about 10 videos a year.
And while most are just sort of ridiculous-
(cannon explodes)
- [Offscreen Speaker] What?!
(devices explode)
(horn beeps) (person screams)
(foam bullet whizzes)
(bell dings)
I like to dedicate one video to showcase
how clever people are using engineering
to change the world for the better.
And to be clear, the company I'm talking about today
is not sponsoring this or paying me in any way.
I'm just really impressed by the work that they're doing
and how they're doing it.
So we'll circle back in a minute
to exactly how they're gonna pull off deliveries
using these short-range drones in a city.
But it begs the question, if they can make it work there,
why not use gliding drones to cover longer distances
to deliver critical medical supplies
for countries with lots of remote villages?
Well, as it turns out, catapulting life-saving blood
through the skies is what they've already been doing
for over six years, which is why we need
to head out to Rwanda to understand where this all started.
And immediately after showing up,
we were right in the thick of it as drones were taking off-
Wow! (laughing)
And landing-
That was another one land!
Every 90 seconds.
They're coming from everywhere.
And as a newcomer, it felt a bit chaotic.
But if you're gonna rack up 40 million miles worth
of drone flights,
(launcher zings)
your team needs to be operating
with the efficiency of an F1 pit crew.
So here's a crash course on how it all works.
It all starts with an order coming in
from a doctor at a hospital, say for example,
for an emergency supply of blood.
Then once it's all packed up, it gets passed out
to be placed in the belly of the drone,
and then the whole thing is placed on the launcher.
At that point, they attach the wings
and secure the battery, followed by the nose cone.
Then after some pre-flight safety checks,
they launch the drone (launcher zings),
all within 90 seconds of the order coming in.
The catapult launcher takes the drone from zero
to 65 miles an hour in a third of a second
which is literally less time than it takes you to blink.
And it's a pretty clever design, too, because it means
the drone immediately starts at its cruising speed,
where it takes much less energy to stay airborne.
Then once it's in the air cruising at 70 miles per hour,
it navigates its way to the hospital,
and upon arriving, opens the trap door to drop the package,
which lands safely using a parachute.
Having now completed the mission
it continues making all its own decisions to
autonomously navigate back home
from as far away as 150 miles round trip.
Then taking inspiration from an aircraft carrier,
as the drone approaches, the military-grade GPS
broadcasts its position within one centimeter.
So these two poles know exactly when to swing up
at the last possible moment, snagging a hook
on the tail with the cable, which safely slows it down.
Then once it's settled to a stop,
the crew comes in to remove the battery and wings,
and it all goes back into rotation.
The whole thing is really impressive and incredibly robust,
which means it works in pretty much any weather.
And because there's no human steering it,
it has no issues flying at night.
So they run the operation 24 hours a day,
which is how in six years, they've managed to make
those half a million, often lifesaving deliveries.
That is the uppermost top of the iceberg tip
زیرنویس کامل در پخشکننده ویدیو موجود است
با تمرینها یاد بگیرید
تمرینهای واژگان، گرامر و درک مطلب از این ویدیو بسازید
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