Luyện nói tiếng Anh bằng Shadowing qua video: My Tesla Powered Boat Gets MAJOR Upgrades

Chọn chế độ luyện tập

Mỗi chế độ mở một phòng luyện tập toàn màn hình.

251 câu

Nếu các câu quá ngắn hoặc quá dài, hãy bấm Edit để chỉnh sửa.

Welcome to episode 2 of the Tesla-powered mini jet boat build.

Today we're fixing the batteries and building a totally custom Tesla motor to power it.

It's so smooth.

In this project, we're learning so much about high-voltage electric drivelines while pushing the limits of what's possible with them.

At the end of this episode, we're doing the first successful test drive of the boat.

Let's start today by removing the batteries so we can fix them.

I'm standing in a metal boat, touching the live terminals.

Any last words?

Oh yeah!

Ah, so much more barren in here.

Next, let's pull out our Model 3 motor we put in in the last episode.

There's nothing particularly wrong with it.

I just don't like the inverter relocation mod, and I know we can do better.

So, I've identified the worst cell.

So this is a good cell here, 3.87, right here.

0.19 volts.

All the cells in this region right here are completely drained and they are unrecoverable.

Once they get below about two volts, they're completely shot.

The chemical makeup inside of them changes and they're no longer able to be charged again.

These are the two new modules we are replacing the junk ones with.

Now we have to make these four modules play nice together by balancing them out to the same voltage.

These two packs were at 92 volts, which is pretty full, so I need to drop them down to match these two at 83.

Luckily, it's pretty easy to remove power from a battery.

This is so awesome!

We're boiling water with just one of these modules.

These battery modules carry an insane capacity, and they have such low resistance that they can put out a ton of current.

I'm pulling about 30 amps with this little setup, but that is nothing for these liquid cooled batteries, they can put out over 600 amps each.

It's just crazy.

Now that the battery modules are balanced, we can get ready to reinstall them.

Version two of the battery boxes is going together way more professionally than the first round.

The last version had a bunch of silicone wrapped around all these bolts to seal it up

and it was super nasty looking.

You can't just put a rubber washer on these bolts

because they have a load on them and it'll just squish the rubber everywhere.

So I've come up with a solution.

I found these washers.

They're for like a hydraulic pump.

Those will tighten up and they can handle a ton of load while they're sealing with that rubber washer there.

They're not very cheap.

This was $400.

What have we done?

It's the best way to do it.

It's the only way.

I don't know what to tell you, man.

These electric projects are just expensive.

Since we're using an aftermarket battery management system, we can get rid of the Tesla control boards off of these new modules, just like last time.

And then we can add our cell tap wires that monitor and balance the voltage across each of our 96 cells.

Last time we soldered to these battery tabs and it did not work well.

So this time we're crimping to them.

It looks a little crude, but this is actually the best option here.

I'm upgrading all the wiring with removable plugs to make assembly and any repairs in the future a lot easier. is fully assembled

and i want to test the cooling system in each module we're just gonna put about 10 psi in

and let it hold for a little while make sure we don't have any leaks all good

finally we are sealing up the new batteries

looks so good this is our new motor

and this thing is gonna be crazy our model 3 motor was an impressive 280 horsepower,

but this custom-tuned Model S motor will make over 350 horsepower.

You know you're doing some sketchy stuff when they try to hide the bolts from you?

That know right where they're at.

You can see the gearing reduction here.

So that one's spinning 9.7 times slower than that one.

This is the RPM we're after.

Horsepower is great, but the coolest part about this motor is it can spin over 18 000 rpm

i've got the motor fully gutted now and we can check out how it works this is the inverter

that controls how much power the motor gets and the rotor The rotor lives in there like that,

and this is what generates the torque.

When this is in the car, there's a bunch of gears in here

that reduce the RPM of the motor to the axle outputs right here about 9 to 1,

but we need the full RPM of the motor.

The way we're going to do

that is by adding this custom stub shaft right into the tail end of this

and drive it all the way in so that we have the jet drive connected directly to the rotor on the motor.

It's also too wide to go in the boat just like this

and we don't need this whole section that used to carry all the gears

so we're going to slice it off and weld the cap on it.

Oh Now

we're gonna mill this part perfectly flat.

I'm not a machinist.

I'm using random parts to jig this thing up.

We're gonna ratchet strap it down and just run the mill into it, make it flat. That worked really good.

I can't believe it didn't fly off of here.

Wow.

Not bad.

Definitely good enough to weld to.

We got our oil pressure fitting installed.

This is definitely the world's first Tesla with an AN race fitting welded to the top of it for oiling.

Since we removed the internal oil pump and some of the gears that splash oil around,

I need to add a couple different ports to spray oil on our bearings to make sure they stay cool and lubricated.

Modifying the rotor was the key to the whole build here.

I had this section removed from this rotor.

Look at that.

So this is what it used to look like.

And I had a machine called a wire EDM that cut all the way around to the profile of our new shaft.

And it removed this blank.

It is unfathomably precise.

Like we're talking smaller than human hairs by like a thousand it.

Now that the rotor is bored out to the correct diameter, we can slide our new stub shaft in.

So we're going to have to chill this part down to shrink it and then slide it in.

I really wanted to use my liquid nitrogen for this, but I used it all up making ice cream.

100

I had this in the freezer for a few hours, so it's nice and shrunk down.

101

Hopefully it pops in.

102

If we mess this up, it's a really big deal.

103

It's going!

104

I think that's all we're gonna get.

105

That's okay.

106

It doesn't need to go in all the way.

107

It's definitely not gonna come out.

108

Sweet!

109

If I would have used the liquid nitrogen, it for sure would have went in all the way.

110

Oh baby!

111

This is now officially a jet boat motor.

112

This is the standard jet pump adapter flange.

113

That is so cool.

114

It is time to install our extremely custom modified Tesla rotor.

115

It's a real pain in the butt to get out.

116

If we mess this up, it's not good.

117

You can damage the bearings.

118

Oh my gosh.

119

Now we're going to put this cap on here.

120

And you see how that shaft lines up right here.

121

We just need to poke a hole in the top of this thing.

122

Stick the shaft out and then put a little seal right here.

123

That's it dude, we're done.

124

I made this little ceiling flange out of a piece of half-inch aluminum plate.

125

And I'm going to use a razor blade to scribe its perfect location on the housing

126

so I can take it off and weld it.

127

This thing fits perfect.

128

This is the stator.

129

This is what actually puts the current from the inverter into the rotor.

130

Oh yeah.

131

You have to put a lot of thought into how the whole system works before you can design parts. For example,

132

the diameter of this shaft is determined on the diameter of this bearing being able to slide over top of it.

133

If it was larger than that, we'd have a very big problem.

134

To get this shaft installed perfectly aligned with the factory rotor was not easy.

135

Lots of planning, redoing the oil system, cutting the case, everything to make this happen.

136

I'm so proud of this motor.

137

I think it's really going to work good.

138

This is the inverter.

139

What it does is it takes the two big DC power leads from your batteries

140

and converts it to a three-phase AC output to run the motor with all these control boards inside of here.

141

This inverter has a huge problem for us here, and that's that logo right there.

142

The stock control boarding here makes it really hard to control the motor when it's not in a Tesla vehicle.

143

But luckily for us, somebody else has spent a ridiculous amount of time developing a new one

144

that we can install and control this thing however we want.

145

We just need to pop off the Tesla control board, grab our new control board, and solder a few connectors to it.

146

Too easy, dude.

147

Too easy.

148

Got our aftermarket inverter board installed now

149

This motor is so close to not fitting.

150

There is an eighth inch of clearance on the bottom side, but I love how it looks in here.

151

Let's whip up some new motor mounts and modify the hull just a little bit to accept them. so Check

152

out our suspension system.

153

These rubber isolators are out of a military crate that held a jet engine.

154

Look how well this works.

155

They have their own suspension inside the boat.

156

I got my spacesuit gloves on.

157

We're doing the final install on the battery here.

158

Yeah, it didn't even explode this time.

159

Can't wait to see this motor spin.

160

I think we can do it today.

161

There we go.

162

We also need to redo all of the coolant hoses.

163

This is kind of fun.

164

There's a lot of crazy shapes.

165

This is my favorite because it looks like a little puppy.

166

We are ready to fill it up with coolant and oil.

167

I've got the motor full of oil so we can turn on the pump and test the flow.

168

It pulls out of the bottom of the case there

169

and comes in the top here and we get to see it draining into the case.

170

Wow, look at that.

171

What?

172

That's so cool.

173

Now we can hook it up.

174

Charge port sensor is plugged in.

175

Now we will see if it starts to charge.

176

No, wait.

177

It's charging.

178

Is charging power status on?

179

It's pulling nine amps.

180

Let's go.

181

I'm so pumped.

182

seeing this thing charge after all those hours of work really pays off

183

it's 3 30 in the morning i just got connected to

184

the inverter you actually use wi-fi for the upgraded board

185

that i put in there you can see we're connected to inverter

186

this is months in the making we are ready to spin over the model s motor in the boat

187

oh my gosh i'm so excited enable i'm gonna give it a little throttle and see if it spins

188

oh this thing is silent the model 3 motor is a lot louder let's go

189

There's a lot of little things to do, but I just want to get it on the water and make sure that it works.

190

You want to go with?

191

I got your harness in the mail today. Are you ready, dude?

192

Can't wait.

193

I'm so pumped.

194

Yeah, the last test drive we did was a year ago.

195

We didn't have time to put the seats in.

196

I hope that's in here.

197

Bro, are we gonna die?

198

Power on the motor.

199

For all the testing today, I'm gonna set the power limit to about 60% and the maximum RPM about 50%.

200

I think it's ready to go.

201

See, we got full bars of battery.

202

Fully charged.

203

I'm nervous.

204

Ready?

205

Dude!

206

She's working.

207

It's working.

208

Oh my gosh.

209

It sounds so smooth.

210

It's so quiet.

211

Oh, she wants to rip.

212

I guess we're just off to sea.

213

Okay, calm down.

214

When should we give it full power?

215

Not yet.

216

Floor it.

217

Oh crap!

218

Oh crap!

219

Dude!

220

No way!

221

What the heck?

222

Holy smokes!

223

That is insane!

224

Was that full throttle?

225

No!

226

That wasn't full throttle?

227

No!

228

Oh yeah, okay.

229

Holy crap!

230

What the heck?

231

We just went like 50 miles an hour.

232

That's crazy.

233

Like working on a project in the shop for three years and then the first time you take it out properly,

234

you have to turn your hat backwards because it is that fast.

235

It's 0 to 100.

236

Smoking up the whole environment.

237

Yeah, I am.

238

Couldn't be us.

239

Anyway, did you hear about that new lithium mine going in across the street?

240

Yep.

241

Dude, that's a great wreck.

242

This is so sick.

243

I can't believe it.

244

It's working so good.

245

We're gonna make a couple tweaks, maybe move the batteries forward a little bit, and then all we have to do is paint it, put in the windows, put on the stickers, just like little stuff.

246

Finally, after three years of working on it, it is functional.

247

We officially own a Tesla powered mini jet boat.

248

This is amazing.

249

In the next episode, we are finishing the jet boat build.

250

Huge thanks to Tubi for sponsoring this project.

251

Come back next week for episode 3, or if you want to watch the entire Build series right now, it is live on Tubi.

Tải Ứng Dụng

Mọi thứ bạn cần để nói trôi chảy

Chấm điểm AIChấm từng câu nói

Luyện IPAThành thạo mọi âm

Từ vựngMở rộng vốn từ

Game Từ vựngHọc qua chơi

Quét QR

Download on theApp Store Get it onGoogle Play

FOR YOU

Video gợi ý

212 câu

Basic Solar Components & How They Work - Solar Panels, Inverter, Batteries, & More Explained (Ep. 2)

Business EnglishUniversity StudentsWorking Adults

73 câu

How An Oil Tanker Works And Designed

Business EnglishUniversity StudentsWorking Adults

220 câu

Dominator 3 Tornado Tank ULTIMATE Tour

Business EnglishUniversity StudentsWorking Adults

Từ vựng và ghi chú luyện nói cho bài học này

Bài luyện nói trình độ B2 này dựa trên video “My Tesla Powered Boat Gets MAJOR Upgrades”. Những từ được nhắc lại nhiều nhất trong bài: motor, rotor, boat. Video này có 251 câu và 2330 từ để luyện shadowing. Phần lời nói dài 23:35. Người nói nói chậm, khoảng 99 từ mỗi phút, đủ thời gian để bạn bắt chước từng âm. 82% số từ nằm trong 3.000 từ tiếng Anh thông dụng nhất; phần còn lại nên xem trước khi luyện.

Từ vựng quan trọng trong video

15 từ khó nhất trong video, kèm phiên âm và nghĩa:

Từ	Phiên âm	Nghĩa
module danh từ	/ˈmɑd͡ʒul/	mô-đun, bộ phận rời
weld động từ	/wɛld/	hàn
horsepower danh từ	/ˈhɔɹsˌpaʊɚ/	mã lực
volt danh từ	/vəʊlt/	vôn
voltage danh từ	/ˈvəʊltɪd͡ʒ/	điện áp, hiệu điện thế
bolt danh từ	/boʊlt/	bu lông
diameter danh từ	/daɪˈæmɪdɚ/	đường kính
install động từ	/ɪnˈstɔl/	cài đặt
solder danh từ	/ˈsɒl.də(ɹ)/	chất hàn
nitrogen danh từ	/ˈnaɪ.tɹə.d͡ʒən/	nitơ, đạm khí
luckily trạng từ	/ˈlʌk.ɪ.li/	may, may mắn
drain danh từ	/dɹiːn/	cống
plug danh từ	/plʌɡ/	phích, đầu cắm
scribe danh từ	/skɹaɪb/	thư lại
lithium danh từ	/ˈlɪθi.əm/	lithi, liti

Cụm động từ bạn sẽ nghe

Từ	Nghĩa
check out động từ	tính tiền, trả phòng
come back động từ	trở lại, trở về

Những câu đáng luyện lại

Các câu ngắn, trọn ý trong video mà bạn có thể dùng lại khi giao tiếp hằng ngày:

We're boiling water with just one of these modules.
What have we done?
I don't know what to tell you, man.
You want to go with?
When should we give it full power?

Ngữ pháp trong video

Những cấu trúc người nói dùng nhiều nhất, kèm đúng cụm từ trong video:

Cấu trúc	Trong video
“Used to” used to + động từ — thói quen hoặc tình trạng trong quá khứ nay không còn	used to carry · used to look
Thì hiện tại hoàn thành have/has + quá khứ phân từ — việc đã xảy ra nhưng còn liên quan đến hiện tại	I've identified · I've come · have we done
Câu bị động be + quá khứ phân từ — nhấn vào việc xảy ra, không phải người làm	be charged · are balanced · is plugged

Phát âm cần chú ý

Người nói dùng 72 dạng rút gọn, ví dụ we're, I'm, gonna. Hãy nói theo dạng ngắn đúng như bạn nghe.

Âm “th”: throttle /ˈθɹɔ.tl̩/, lithium /ˈlɪθi.əm/, eighth /eɪtθ/
Âm “sh” và “zh”: shaft /ˈʃɑːft/, washer /ˈwɒʃə(ɹ)/, gosh /ɡɑːʃ/, machinist /məˈʃiː.nɪst/, relocation /ˌɹiːləʊˈkeɪʃən/
Từ dài — đặt trọng âm cho đúng: diameter /daɪˈæmɪdɚ/, relocation /ˌɹiːləʊˈkeɪʃən/, aluminum /əˈlu.mɪ.nəm/

Những âm người Việt thường gặp khó:

Cụm phụ âm cuối — đọc đủ từng âm, đừng nuốt âm cuối: shaft /ˈʃɑːft/, weld /wɛld/, volt /vəʊlt/, amp /ˈæmp/, bolt /boʊlt/
Âm /tʃ/, /dʒ/ và /ʒ/ — tiếng Việt không có, đừng đọc thành “ch” hay “gi”: module /ˈmɑd͡ʒul/, voltage /ˈvəʊltɪd͡ʒ/, flange /ˈflænd͡ʒ/, nitrogen /ˈnaɪ.tɹə.d͡ʒən/, sketchy /ˈskɛt͡ʃi/
Âm /æ/ — mở miệng rộng hơn âm “e”: amp /ˈæmp/, diameter /daɪˈæmɪdɚ/, flange /ˈflænd͡ʒ/, barren /ˈbæɹən/, adapter /əˈdæptəɹ/

Cách luyện với video này

Nghe hết video một lần, chưa cần nói, và ghi lại những từ bạn chưa biết.
Nói đuổi từng câu ở tốc độ bình thường, lặp lại mỗi câu đến khi nhịp của bạn khớp với người nói.
Ghi âm giọng mình rồi so với bản gốc, chú ý các từ như module, weld, horsepower.

Phương Pháp Shadowing Là Gì?

Shadowing là kỹ thuật học ngôn ngữ có cơ sở khoa học, ban đầu được phát triển cho chương trình đào tạo phiên dịch viên chuyên nghiệp và được phổ biến rộng rãi bởi nhà đa ngôn ngữ học Dr. Alexander Arguelles. Nguyên lý cốt lõi đơn giản nhưng cực kỳ hiệu quả: bạn nghe tiếng Anh của người bản xứ và lặp lại to ngay lập tức — như một "cái bóng" (shadow) đuổi theo người nói với độ trễ chỉ 1–2 giây. Khác với luyện ngữ pháp hay học từ vựng bị động, Shadowing buộc não bộ và cơ miệng phải đồng thời xử lý và tái tạo ngôn ngữ thực tế. Các nghiên cứu khoa học xác nhận phương pháp này cải thiện đáng kể phát âm, ngữ điệu, nhịp điệu, nối âm, kỹ năng nghe và độ lưu loát khi nói — đặc biệt hiệu quả cho người luyện IELTS Speaking và muốn giao tiếp tiếng Anh tự nhiên như người bản ngữ.

Phương pháp shadowing: đọc hướng dẫn từng bước đầy đủ →

Luyện nói tiếng Anh bằng Shadowing qua video: My Tesla Powered Boat Gets MAJOR Upgrades

Chọn chế độ luyện tập

Tải Ứng Dụng

I Built a Fully Autonomous Flying Umbrella

How A Combined Cycle Power Plant Works Gas Power Generation GE Power

Why China is winning the EV war

Inside The SpaceX Starfactory

15 Things You Didn't Know About Nikola Tesla

The Best TINY Tech on the Internet!

Someone Hit My Tesla & I Caught It On Camera

Jeremy Clarkson Bugatti Chiron Review | The Grand Tour Seizoen 3

I tried gaming on Linux...

Basic Solar Components & How They Work - Solar Panels, Inverter, Batteries, & More Explained (Ep. 2)

How An Oil Tanker Works And Designed

Dominator 3 Tornado Tank ULTIMATE Tour

Từ vựng và ghi chú luyện nói cho bài học này

Từ vựng quan trọng trong video

Cụm động từ bạn sẽ nghe

Những câu đáng luyện lại

Ngữ pháp trong video

Phát âm cần chú ý

Cách luyện với video này

Phương Pháp Shadowing Là Gì?