That's good to hear.

HOW IS IT FROM TWO WEEKS AGO

2 weeks ago...

mr time traveler

How did you comment 2 weeks ago

Yes it did

If landing on its back is sticking it, yes.

@Dyslexic Mitochodria I was curious about ur username so clicked on ur profile. Your channeI is a hidden gem bro

I have a feeling this will be the third most liked comment on this video Your videos are awesome btw

Damn

The last ride of Mad Cap'n Tom!

Anyone recall the long-lasting graffiti on a motorway bridge? "Where are you, Guy Fawkes, now that we need you?"

Tom Scott would be a great anti-hero

James Burke meets Tom Scott? Yes, Please.

Wait, Tom is irish?

I was thinking that.

No. The force is dissipated in all directions. It has to be channelled in one way or the other. So the amount of force the gopro actually has to withstand is not as much as it looks. Film that same scenario underwater and it might end very different.

How do you know that's Semtex?

labeled on the screen corner. semtex.

@@Alphonselle Cool

There is also a Drink called Semtex in the czech republic.

Because its Is Delicious. You Can Literally Taste It. But Once Only. Which Is Spectacular.

Snap, Crackle and KABOOM!

i have other questions

not gonna get a free like

Do you also think play dough looks delicious?

Tom Scott: "I need a thing I can do a video about while safely following Covid-19 protocols of staying at least 6 feet apart from my subject." Tom Scott: "*Googles 'Safe distance from high explosive devices'*"

Thats the germans favorite activity

*_nods in German_*

Very Irish of him

rule of thumb for social distancing: assume that any other person could violently explode

Yes and no, barrel length does matter a lot, but usually all of the propellant is burned after 4 to 10 inches of bullet travel(in a rifle), but it still accelerates as long as the pressure from the back is greater than the barrels friction trying to slow down the bullet.

​@testicular Both high and low explosives produce gasses, the key difference is in the speed. High explosives react so fast that the air "can't move out of the way in time" and you get a pressure wave even in open air. Guns use low explosives because they want the explosive to propel the bullet, rather than blowing the gun to bits.

Maybe worth pointing out that "modern smokeless gunpowder" is actually cordite, a different low explosive.

@testicular low explosives deflagrate. high explosives detonate. Both produce gas, but deflagration propagates through the heat of combustion while detonation propagates through a shockwave.

It's also worth noting that some materials can exhibit both behaviors, depending on the circumstances. A mixture of gasoline and air, given high enough pressure and temperature, can detonate via a shockwave, rather than burning in a flame front like normal. I was going to say this was because gasoline is a big soup of all sorts of chemicals with different properties. This is true! But, gaseous hydrogen is about as pure an element as you can imagine, and even serious experts can have trouble predicting whether hydrogen will go "womp" or "bang".

Then there id NI3. You don't even have to drop that sht. It makes dandy fly paper. Flies light on it and it blows their little sses off.

@@jackiemowery5243 my dad and his friend used to make it in the 60s, I think they stopped after his friend lost a finger.

Then there is NCl3, it's like NI3 but it even explodes when it is wet.

@@Pyrokatze Hmmm . . . How do you make that? NI3 uses ammonia and iodine, ammonia and bleach just produces Cl2 gas. Bubble Cl2 thru ammonia? "Remember, Kids, don't try this at home! We're professionals. "

Nitroglycerine isn’t as sensitive as people make it out to be. Yes it will go off if struck by a hammer, but it *can* also not go off when struck by a hammer. It requires a surprising amount of energy to detonate the stuff, to the point where dynamite (Sawdust or some other inert absorbant substance soaked in nitroglycerine) is often detonated using a blasting cap, much like the semtex in this video.

Gerry Adams liked this comment.

I suspect that is assuming you have all the other permits and licenses for them. And, as was said in the video, you keep your detonators in another car, and that car has to be marked.

Welcome to the no fly list. At least you got that car to travel with!

I have a feeling 50 kgs would be enough for most purposes.......

IRA will use this as an instructional video 😂

BTW explosives make me very happy.

@@TheFirstHarbinger said the EOD tech, predictably.

Beirut?

@@scrappydoo7887 Exactly. That was poorly stored, contaminated ammonium nitrate. So safe it's not even really considered an explosive under most circumstances. But with enough heat, containment and a positive feedback loop it can detonate.

@@TheFirstHarbinger Well you also have the genius who thinks breaking up clumped up ammonium nitrate with dynamite is a good idea...

😂

Indeed.

May I say: Explode the KZfaq algorithm

@@mattearenzi8972 Or Is It?

And garlic bread.

You joke, but certain nitrate high explosives are actually used as medicine (mainly nitroglycerine, but other alkyl nitrates/nitrites will have the same effect). In high dosages they will cause terrible headaches due to over-dilating blood vessles. Though in the case of the C4-type explosives in the video (based on RDX or HMX), they will get metabolized into formaldehyde, which causes cancer and possibly permanent blindness depending on how much you ingest.

Don't chew too hard

@@Nuovoswiss that's why it's forbidden

@@thebathman0987 don't wanna make a shockwave

Dude sick maymay

I hope the C-4 isn't what was mind blowing

They actual kept it in Irish cars and parked them outside of schools

And the whole movie is one long take.

@@TheTechnician27 1917 style

@@TheTechnician27 End Credit scene is just Tom running around shouting "One Take! One Take!"

I'm ok with this.

Mnad capt'n Tom, the movie

Yup, in fact massive things don't need to be big. In astronomy, there are things called Weakly Interacting Massive Particles and MAssive Compact Halo Objects. (Yes, WIMPs and MACHOs.) The fact that something can be massive *and* compact would be an oxymoron in lay English. Also, in science, periodically and frequently mean the same thing - with a fixed period or a fixed frequency. But in lay terms, one means rarely and the other means often.

My ex would correct me, noting that a particular thing that I called massive was actually just voluminous (but lightweight).

And my french teacher pointed out that ‘breakfast’ is the breaking of the fast (that you’ve been doing while sleeping) I felt real dumb after hearing that one.

i thought R163a1 was the biggest star, because it was the most massive star, but when i compared it to stephenson-18 which is the biggest star (for now). I was really confused as why the most massive star is small compared to the biggest star.

@@andymcl92 Nah, I've never seen "periodically" being used to mean "rarely" _or_ "often". It just means "with set intervals" to everyone. People who think otherwise aren't laymen, they're just wrong.

I saw a video years ago that I wish I could find, looking at low vs high explosives and specifically the term Brisance, on that they blow a roughly 1" hole in a 20mm piece of steel plate using a similar high explosive, I wish I could find it! it might even have been on british TV like the BBC or something?

The engineer has like 20 phds

What makes me a good demoman?

@@DoohikLolwut Well if I was a bad one, I woULD’NT BE SITTIN HERE DISCUSSIN IT WITH YA

He's also got a nice handlebar.

I think the engineer already has a degree in explosives

Just be glad that the people on KZfaq doing stupid stuff don't have access to high explosives :).

@@ninjafruitchilled or low explosives

@@ninjafruitchilled missed opportunity to say `low explosives` here! Sure less powerful but so much easier to screw up!

@@metropolis10 Haha thing is that they do seem to be able to get their hands on low explosives ;).

@@ninjafruitchilled so they got an electric car, electric mower and owns nothing that runs on diesel, gas or anything like that? Got it

Don't forget him learning to use a jetpack.

I also want in on this militia

Sark better watch out. The football is just a decoy

Looks like the AI didn't just give him video ideas...

I hope it's London

Aren't we all interested in explosions? Freud figured that out a long time ago.

"I am standing outside the Museum of Computer Science, from which I have just been banned"

@@vividandlucid "See you next week, where I will attempt a heist and blow up the entire museum"

Funnily enough, what looks like Tom's next episode is appearing in the recommended section right beside your comment on my screen. It's titled "That Time I Got In Trouble With The Government".

GamersNexus are already ahead, by setting computers on fire.

For anyone else who's curious, according to Oxford, "parapet" comes from the Italian _parapetto,_ meaning "chest-high wall", from the Italian roots _para-_ ("protecting") and _petto_ ("chest").

I have seen a video from a GoPro being engulfed in molten lava and it survived somehow.

just don't shoot arrows at them... they don't like those at all

@@Daniel-yy3ty I didn't know GoPros have knees.

Let's be real though, how often are they actually used to clean pipes?

There's two types: 1 the soft craft supply kind you give to kids 2 a hard stiff type that actually cleans pipes

@@the_victorious_1 the soft ones are good for getting flakes of paint out of door hinges (I work back stage for a small theatre company and we paint the hinges alot to match whatever we stick them on, eventually the paint makes it hard for the hinge to function properly, until you run a pipe cleaner down it and pull out a ton of paint)

My missunderstood pipe cleaner for drain cleaner (I mean water runs trough pipes, doesn't it?) and was a bit confused xD

@@NoriMori1992 as a pipe smoker... not as often as they should be, really.

someone who knows a little bit my friend

If you aren't sure your fuse is long enough, it isn't.

youre actually trained to walk away instead of running because its usually more dangerous to run for a variety of reasons

Bad guys don't look at explosions

The sound was not recorded on the gopro as they were quite a way away. Notice that the explosive expert had no issues walking away from the low explosive, including the "firecracker" and the burning high explosive, with a lit fuse. The safety distance from the last explosion was much longer.

GoPro: "It's just a flesh wound".

@@57thorns But why did we hear him talk then?

@@Marquis-Sade The closeup gopro did record sound, but they _also_ had other microphones to record sound, as well as obviously cameras.

But it took a while to walk up to the gopro and notice it was still recording, they might not even realise it was still recording while retrieving it.

I think that's a little more than a firecracker.

40g of Powder is some Hell of a Firecracker

Had to rewind a couple times cause I was so distracted by the smoke ring

Mini-nukes

Gandalf undercover here xD

Oh.

Wait, really? I never realised that!

I hate that carbonated drinks are classified as such 'cause they are anything but soft on your tongue & mouth...

Laptop: A computer that can be on TOP of your LAP. Desktop: A computer that can be on TOP of your DESK.

@@47Mortuus Took you that long?

Yep, the TSA literally says both of those things can be brought on a plane, but that you will be slowed down. That's why they have the chemical analysis machines to test for bombs.

the fact u say play doh is triggering, oh americans

That's a deliberate choice, I think. That consistency is much easier to work with than anything else.

Friend used to play touch footy with balls of C4.

@@girlsdrinkfeck ??? That's literally its name

Codyslab and him should team up

His channel might be _blowing up_

Tom from ex&f goes off to work on a PhD in some secret government lab... *A CHALLENGER APPEARS*

i'm also getting Brainiac vibes

Same in swedish "Förkläde" För: for, Kläde -> kläder -> clothes

Same in danish: forklæde (klæde = cloth)

@@thecrazything95 which makes me wonder if it’s having ö and ä that makes me notice more quickly. i guess yes in this specific case, but if there was a word in norwegian or swedish that used only the 26 letters of the english alphabet vs. the 29 of swedish/norwegian but didnt have a part of it spelled like a common english word, i don’t think it would trip me up. or maybe im just not fully awake yet.

what killed me was the "farse-entower" in Berlin. I'm all you call TVs "far-seeing's". that's whack!?? And my host pointed out that in latin, that is "tele-vision". Schooled.

Apron is an example of an stolen N, like apple. A Napron (table cloth) became An Apron as people heard it but didn't see it written down. Same for A Napple becoming An Apple. And if you think about "Napkin", they are cognate. Apron and Napkin are kin.

I only now realized the japanese names of those days are direct translations doyoubi is "saturn"-day, nichiyoubi is "sun"-day, getsuyoubi is "moonday". I have been trying to memorize them without without making the connection.

You just blew my mind.

From Latin, they are Sun's Day, Moon's Day, Mars's Day, Mercury's Day, Jupiter's Day, Venus's Day and Saturn's Day. Both English and Spanish replaced some, though Spanish kept more of them: Lunes for Luna (our moon, as you said), Martes (Tuesday) for Marte (Mars), Miercoles (Wednesday) for Mercurio (Mercury), Jueves (Thursday) for Jupiter, and Viernes for Venus. Not surprising, since Spanish is much closer to Latin than English.

@@vashsunglasses Really? I thought Friday was from the German "Freitag" which is literally "Free Day". Learn Something new every day I guess

lmao

2 Explosives videos this close together and that grin, this is gonna make for one hell of video or one hell of a trial

I suppose it's less exciting the second time.

It is dangerous to run, so you always walk away ... it tells you the same thing on firework packaging :)

You don’t want to trip while close to explosive and your fuse should give you enough time to get to safety. Not to say running away is never an option.

Yup - his purposeful explosives engineer walk is my favourite part of this video.

Cool guys don't look at explosions They blow them up and then walk away

Or just "Huuuuhhh!"

+

Or Things You Might Not Know

Both of those are genuinely thought-out names for a series. If I were a content creator I'd steal your title.

he managed to get out of the cave

copied

@@noodlesoup2586 pasted too

I imagined a drunk scottish cylcops to be honest

​@@wooshifgay462 „What makes me a good demoman?“

Others practice doing smoke rings for months, the explosive just does it with no effort.

Props to the camera for tracking it!

Do you say tshemistry or kemistry?

@@Liggliluff you pronounce chemistry as kemistry

@@diegodekruif3772 i pronounce it as zchtemistry

My immediate thought is, forbidden butter

I believe there's more of that in his recent movie explosion(?) video

Plastic explosives

I've done training in this stuff (I'm a fire investigator), and plastic explosive is just like plasticine - to the point that I think our class sample actually *was* just plasticine, because, well... 🙂

Same here. I guess I never realised just how plastic-y plastic explosive is.

A friend's dad told me they used to heat their rations with C4 in Vietnam.

@@nitehawk86 I thought they came with heaters.

@@nitehawk86 Well actually Hexamine fuel tablets were used. However, Fun Fact, you nitrate Hexamine to get RDX, the main explosive ingredient in C4, alongside PETN. So I guess he’s telling you the truth but exaggerating a little bit… Unless they really were using real C4 to heat their rations. In which case, cool, but personality, we would save C4 for blowing stuff up instead of cooking, since it’s a nitrosamine, it’s quite toxic and loves to damage to DNA. Not very fun…

Nitroglycerin is not a precursor for TNT. It is an ingredient in Dynamite. TNT is a completely different explosive.

@@jackmclane1826 Nitroglycerin was used in tunnel boring and mining operations in like the 1700’s many years before tnt was invented (i think OP means precursor to tnt in the sense it was a mining explosive used before tnt was invented)

Nitroglycerin is scarily unsafe. You can make it explode by throwing something at it, or shaking it too hard. I wouldn't recommend yelling at it either.

Or Cordite. Ask the Royal Navy how cordite powder bags on thinly armored battlecruisers went.

@@jackmclane1826 true

oh my god it's anonymous from 4chan i see you literally everywhere

@@22tfortnitevevo be careful, 4chan is an elite hacker.

@@whirlwind872 oh no i've already been epicly pwned

@@whirlwind872 On the bright side, because he's 400 pounds and currently stuck in his mother's basement, he's probably not coming for you any time soon.

Judging by the tumbling video footage, it actually handled that just fine. It took a tumble. That's not to say they always will; the shockwave could dislodge something.

@@0LoneTech got ya. Still, that shot with the camera flying is funny and it's even better that Tom didn't have to buy a new one haha

just like it did when Tom unleashed the power of a few hundred suns on it in that solar lab... :P

A Go-Pro once stopped a round from a Mosin-Nagant. Saved a journalist.

The sequel to this video will be "GoPro's Revenge"

now consider that shepherd, as a noun, likely had an -er at the end that has been lost to time. im not a linguist or anything but knowing how messed up all forms of english have been over time, i would not at all be surprised if that fact was true. which to be clear, i have no idea if it is or not.

A few years ago I realized that fireplace is literally a place for fire, and it really messed me up for a few hours.

And how horizontal is called that way because it's the way the horizon goes

And how Skroob (as in President Skroob from Spaceballs) is almost Brooks (as in Mel Brooks) backwards.

@@omegagamma your comment made me curious, so I looked it up. "shepherd" is a straight descendant of the Old English "sceaphierde", which is indeed "sceap" = sheep, + "hierde" = herder. -er existed in OE, but apparently "hierde" already meant a person, and so didn't need it. I'm guessing (guessing mind you) that this is because the _verb_ "herd" didn't appear until the mid 13th c., as a verbification of the noun, which goes back to Proto-Indo-European. I *assume* it replaced a verb, but my source doesn't say what verb, and I don't have time to dig farther, now. btw, the "sc" in "sceap" referred to the same sound as "sh", now.

Sounds like a new series that would fit right up this channel.

This guy's explanation was terrible and incorrect.

@@ferrischemistry7879 explain it yourself then genius

@@ferrischemistry7879 why quiet now?

They are but the term is rarely used in practice. Their usual name is their most common function: propellants.

up next: low education

@@spot1401 That is already a thing........all lefty influenced education to be honest.

@@allybally0021 ah yes, I totally forgot the classic education of Trump and the all accessible for all education of Eaton.

metal

@@yourmum69_420 no, actually, metal burns very poorly

@@danmatthiesen9160 Unless it's metal wool/powder

@@danmatthiesen9160 Unless it's Magnesium

If you can't beat the enemys, you must hinder them from playing

I did both, sans the ten kilos. Actually studying explosives rn.

yup, i got the same vibes

Except that unlike that show, this channel doesn't fabricate data

@John N yep haha

But... will it fizz, or will it bang?

@@johnn1199 I was so disappointed when I learned that brainiac outright lies for entertainment purposes.

Yup. It kept filming all the way to the end. I would've loved if Tom had added some text or something to say the GoPro isn't dead. Like just subtitles saying "No, it isn't."

@@Vousie In rainbow Comic Sans?

@@HanabiraKage Absolutely. 😂

@@Vousie"No GoPros were injured in making this video."

"I feel happeeeee! I feel happeeeee!!!!!"

It's glorious. I think it might promote smoking unintentionally.

​@@acctsys It might promote nuclear weapons, cause the mushroom cloud comes from a similar mechanism.

@@HappyBeezerStudios Not at all mate! This didn't really mushroom, it just blew a ring, because of the shape of the toilet paper tube used to contain the explosive. Real mushroom clouds happen because of the heat rising. While the explosion initially forms a sphere, the hottest part of the blast comes from the dead center of that sphere. When it balloons up into the air it pushes faster than the gasses away from the "core" of said sphere, which creates the mushroom effect.

Mushroom cloud comes from the shockwave bouncing off of the ground and reshaping the cloud from below. Nuclear explosions in high atmosphere do not mushroom. You are right though that this ring is similar as it is created from the bottom too, by air escaping upwards in a cylindrical shape, dragging the surrounding air with it and swirling it upwards producing a ring.