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  • This might be the coolest or the dumbest thing I've done.

  • [Zack] This video is sponsored by Bill and Melinda Gates. Every year they release an

  • annual letter discussing global issues. This year they talk about climate change and energy,

  • and some very unique ways we can reach our goal of zero emissions. In today's video,

  • we'll be showing one very creative mode of adaptive transportation that already has no

  • emission.

  • [Cambry] I'm so dizzy!

  • [Zack] So we are currently in Kenya in the middle of Africa, and we have this little

  • adaptive motorized electric wheelchair thing for Cambry's wheelchair.

  • [Cambry] And today we're going to use it while we go on a safari.

  • [Zack] We haven't actually attached this and tested it longer than, you know, just around

  • the field and this hotel.

  • [Cambry] But what better way to test it than out on an African safari!

  • [Zack] Let's hope we didn't bring it all the way down to Africa for nothing. This video

  • is sponsored by Bill and Melinda Gates. We're going to talk about energy a little later

  • on.

  • [Cambry] Let's get started.

  • [Intro]

  • [Zack] So you know Hakuna Matata is an actual phrase that people use here in Africa. I just

  • always thought it was something from the Disney movie. But Hakuna Matata actually meansno

  • worries.” And now Cambry's back there Hakuna Matata-ing. (Laughing)

  • So this guy is called the Firefly and it's actually rather expensive on Amazon – a

  • little over $2,000 I think. But what it does is it raises the front wheels off of the ground

  • right here. And the front wheels, since they're so small, those are what get caught on all

  • these cobble stones, or like little lips. So replacing those smaller wheels with a bigger

  • wheel is going to help, you know, go over uneven terrain. And usually Cambry does like

  • a wheelie to get over those little bumps, but now she doesn't have to work very hard

  • and it's kind of doing all the work for her. But does it justify the price? Still unsure.

  • [Cambry] Alright, you ready?

  • [Zack] Yep

  • [Cambry] That's full speed.

  • [Zack] Burnout!

  • [Cambry] The turning radius on this thing! I should be

  • wearing a helmet!

  • [Zack] Okay, that's actually pretty cool.

  • [Cambry] It is pretty cool. But now we need to tone it down so that the wildlife doesn't

  • get afraid.

  • [Zack] So since we're in one of Kenya's largest national parks, we can't actually leave this

  • electrified fenced-in compound because, you know, that's where the lines are at. But there's

  • still plenty of room inside of here to test out this machine.

  • We see a monkey...there are two monkeys over here. We're going to go sneak up on them.

  • You ready Cambry? You going to try to sneak up on them?

  • [Cambry] This isn't quiet enough! This might be the coolest or the dumbest thing I've done.

  • I'm nervous.

  • [Zack] Oh there's two of them. Monkey approved.

  • [Cambry] I didn't want to like have one bite me and then be 6 hours away from some medical

  • attention.

  • [Zack] Sure. (Laughing)

  • So the Firefly wheelchair accessory has a range of about 15 miles and a top speed of...

  • [Cambry] 12 miles per hour!

  • [Zack] Alright, now we are off of the paved trail, coming through some grass and dirt.

  • [Cambry] This is pretty easy to drive. It's got 5 different gears. Although I haven't

  • really noticed a difference in each one. It says how much battery life you have. This

  • is really nice. There's a little sticker that tells you which little throttle is reverse.

  • This one is accelerationgo forward. Brakes on both hands which is nice cuz you might

  • be using one for reverse or one for acceleration. And then a little bell (ding). And then an

  • extra little safety lock.

  • I've found that this machine doesn't really like going up hills. It doesn't have as much

  • traction.

  • [Zack] So the front tire is spinning out a little bit because the tread is kind of weak.

  • But it's still moving on flat ground. One of the big things that makes this possible

  • is the introduction of lithium ion batteries in the last couple of years that can store

  • the same amount of energy as, you know, like a gas tank in a gas powered vehicle, but puts

  • it on the front of a wheelchair very silently, which allows us to go a lot more places. This

  • particular nature reserve or national park probably wouldn't appreciate a gas powered

  • vehicle because it's so noisy. But, you know, we can get away with driving this electric

  • vehicle around kind of wherever we want.

  • These kinds of innovations only happen when people take big risks, or you know, swing

  • for the fences. Bill and Melinda Gates talk about it in this year's annual letter and

  • they make a lot of good points. Two of which I think are pretty interesting. One is using

  • the energy from molten salt, you know, as kind of like a battery storage, but thermal

  • energy. And the other is using underground pressurized wells that can store the pressure

  • underground and use it to spin turbines or something else as also a large underground

  • battery. The ideas might sound outlandish at first, but only by taking big risks can

  • big innovation happen. And it's definitely time for some big innovation when it comes

  • to energy storage and renewable energy. The Bill and Melinda Gates letter is worth a read.

  • They explain it a lot better than I do, so I'll leave the link for the Bill and Melinda

  • Gates annual letter down in the video description.

  • Alright, so we found an obstacle that the chair can't get over. Cambry, explain what's

  • going on. Are you stuck?

  • So if Cambry didn't have the added weight of the motor batteries and front wheel, she

  • could have gotten up that hill just fine in her normal chair.

  • Oh wow. And wet, slick rock.

  • So there are some definite advantages to having the front motor, but there's also advantages

  • to not having it.

  • [Cambry] It's pretty good in different terrains, but like this terrain is not doable. And I

  • don't feel like you can really be independent. You need someone with you so that you're not

  • getting stuck.

  • [Zack] But if we had the off-road wheelchair here with us...the two bikes that we built...that

  • would have handled the hump just fine.

  • So we've added this, which always stays on the wheelchair. Just two bolts on either side

  • and these mounting racks. Then I can take this portion, latch it into the back, lift

  • up on the chair and then clamp on the first one. And when it clamps on the top one, it

  • holds everything secure. So she can motor off into the sunset. Just try not to end up

  • in the pool.

  • [Cambry] Whoa!

  • [Zack] (Laughing) You really almost did it!

  • [Cambry] Not on purpose Zack!

  • [Zack] Ooo, wow.

  • [Cambry] One wheel.

  • [Zack] Almost. Alright Cambry, pros and cons.

  • [Cambry] Cons are you can't go up slick surfaces. You can't really go up hill very well either.

  • It's a little tricky getting in and out of it if someone's not there to like lock it

  • one for you. It's tricky to do yourself. So those are my cons. Pros are: the turning radius

  • is amazing. And then I think it's also a great tool if you are like going to a museum or

  • an amusement park. Somewhere where the terrain is not too difficult and you don't want to

  • wear out your shoulders by pushing the whole time. And it's nice that you can push your

  • wheels for most of the time if your front wheel gets stuck, you can get yourself out

  • of it, but not all the time.

  • [Zack] Right. Flat concrete with like the texture on top surfaces...I feel like that's

  • what this was made for. Cons for me: I feel like all the power is on the front and that's

  • not where the weight is. If you look at Cambry's chair, all the weight is going straight down

  • over the axles. And so we would have to move the motor to where the weight is to get the

  • most effect. But moving the wheel to the back would add a lot more complexity with the turning

  • and the steering. A pro for me though is actually traveling with it. The first airport that

  • we were flying out of did give us a little bit of grief about the battery size. But it

  • turns out that it fits an adaptive accessory. You can go up to 300 watts. And this particular

  • battery I think is like 270...260...so it can fly as a wheelchair accessory in a checked

  • bag, otherwise we would have to put the battery inside of a carry-on.

  • [Cambry] But it is a wheelchair accessory.

  • [Zack] So it works out pretty well.

  • [Cambry] Are these donuts?! I'm so dizzy! Sorry!

  • [Zack] Now hopefully it's time to get up close and personal with some real animals.

  • [Cambry] You might have seen the What's Inside Family with us. They are on the safari as

  • well.

  • [Zack] They are with us because Dan and Claire are the ones who kind of started this whole

  • movement towards funding the school with Coins for Kenya.

  • [Cambry] Let's see the animals!

  • [Zack] OK!

  • [Music]

  • [Dan] What are you filming in there?

  • [Zack] Look who it is!

  • So right now we're inside of a van with an enormous hole cut out the top. And the top

  • just lifts up into this sun shade. But we can also stand inside of the van and look

  • out. Works out pretty well.

  • [Music]

  • [Zack] Cambry, what are you on the lookout for?

  • [Cambry] I really want to see elephants closer. We saw them in the distance earlier and I'd

  • love them closer.

  • [Music]

  • [Zack] That is it. A successful ride. What was your favorite part?

  • [Cambry] The elephants.

  • [Zack] Yeah. By far. Those things were awesome. Anyway, we will have a link up here for Dan's

  • video. He went into a lot more detail about what went on during this trip. But he's better

  • at communicating than we are at the moment.

  • [Dan] I don't know about that! (Laughing)

  • [Zack] But we're working on it!

  • [Dan] That's not true, they did a great job.

  • [Zack] He has a safari hat and everything. He's doing a great job.

  • [Cambry] We were just really excited about it and didn't talk a lot.

  • [Zack] Yeah.

  • [Cambry] Are we doing it?

  • [Zack] Mm-hmm.

  • [Cambry] Thanks a ton for watching. We'll see you around.

  • [Zack] Perfect.

This might be the coolest or the dumbest thing I've done.

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B1 中級

你可以在輪椅上Safari?- 機動椅改裝! (Can you Safari in a Wheelchair?! - Motorized Chair Mod!)

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    林宜悉 發佈於 2021 年 01 月 14 日