Measure Height Of Any Tall Object!

[RatmanXX]

What if I have no space to walk backward and do that procedure?

[FinGianluca]

And what I have to do with a piramid? o.O

[Hixarian]

I want you to do that with Borj Dubai :D

[PedroV362]

Or you can cut the tree and measure it

[jmoney3b13]

@TypicalUsername1 yeah you just use the pythagorean theorm



[hm20010]

You can use triangle drawing on cardboard to measure height. Triangle on drawing has similar angles to imaginary triangle on landscape. If length of one side of imaginary triangle is known, then all triangle sides can be calculated by measuring triangle drawing. No need protractor, no need trigonometry calculation. No need to visit object to measure directly.

Please check to:

maruzar.blogspot.com/2011/12/m­easure-height-from-distant-wit­h.html

[TheGIANTgonads]

simple trig much

[XDinky]

so mesure Lunar whidt

[Fac3H8r]

i knew this for a while and learned it along time ago but great vid!

[Expirement115]

or measure someithing smaller and see how many stack

[kingbongenhogger]

i did this in 6th grade

[Darkgon101]

is this man god???

[krakelak]

It's basically making a cheap but efficient sextant

[MrMcLongCoc]

soh cah toa

[ajb021096]

@TheLittleFish696

It's soh cah toa....you obviously didn't learn in correctly.

[ferkyou420]

what if it like a 400 ft tall building? do they have measuring tape that big?

[DudeNumberOnePlus]

alternatively, you can simply cut the tree down and measure it with tape.

[vindaloogarlicrice]

@DudeNumberOnePlus... But that's measuring it's length not it's height.

[waiotahi52]

How do you know how far you are from the centre of a mountain?

[francisfrancisco14]

45-45-90 :D

[xGlassChild]

Or you could just measure shadows.

Thank you, geometry.

[MyGunIsScoped]

punch the tree until a block of wood pops out, in reality, the tree would fall,

then measure the stump + the piece of wood you got + the tree that fell

that's how a pro measures a tree.

[TheMetalcrypt]

this only works when the object you are measuring is at 90º from floor, gotta remark.

[fuertherbube]

I thought Geometry was boring... I wish you were my teacher back then.

[kommodorez24]

you can doit with a bigger angle too, so you dont have to measure big horizontal distances, eg: if your are measuring a very tall building.

[omgtntmaster]

omg its geo all over again

[whatsup319]

how about we do this? measure the damn tree using the stupid meter huh?

[SandJosieph]

I tried this with a building and was almost hit by a car.

[pigfacejoe19]

lol at basic trig

[OPOCHKA]

You forgot to mention that you need to make sure the spirit level is level at the same time as you look through the straw.

Could be a bit tricky.



[stealth322]

this is completely true..... assuming the tree is exactly perpendicular to the ground

[Tunkas1]

or tell an enslaved African to climb up it with a measuring tape. . . . .

[whoooohaaaa]

dude what is the mystical background music that you have sometimes in your videos?

[Jokaanan]

Except not, because you're looking through the straw at 5-6 feet off the ground... even if you look up from lying on the ground, you'll probably be at least 6 inches from it... So in this example, the tree would actually be, like, 33 or 34 feet high.

[nevershallwedie1910]

lol i learned this when i was 10 :D

[Minerecraftspawn]

@snoozinghipo If the sun stays some minutes after midday, it'll be very easy.

[IanLeoTV]

Hi, if you don't mind, may you please explain clearer the part where you are supposed to look through the straw? What position must you hold the objects? Like how far must you step back? Please reply and thanks! :)

[ivankod]

europe education is better one , i knew it when i was 10 years old ....easy math :)

[LooGiezz]

Or u can just cut down the tree and lay it on the floor

[Donnelly182]

This just blew my fucking mind...... yeah, I failed Maths, so what?

[volalla1]

But it requires a 45 degree angle!

[ivankod]

@volalla1 stupid one :D :D :D



[ivankod]

@volalla1 hahaha so stupid 

[tucense]

chop it down

[roflpwnize]

Dude there's also another way! GET A FUCKIN TAPE MEASURER

[miniwars123]

@roflpwnize What if you wanted to measure a really tall building?

[EmaciatedPuppet]

@yowasup97

Do you set it up as a proportion?

if i remember correctly, -we did this a while ago- you can set it up as a proportion and use cross products to figure out the height of the object/shadow.

[EmaciatedPuppet]

We're doing this in my algebra class. sooo freakin easy.

[JDvzs]

Oh nice. I'll always carry a protractor with me from now on. You know... just in case

[BKrandomvideosKB]

Have fun doing that with the CN tower

[animelover2ne1]

UGH!!....... MATH! >:|

[Chocho5983]

Chocho said it first: Take your last 2 numbers of your birth date and sum them up with your current age and u will get 111.

[Chainsoflawl]

@Chocho5983 gave me 110

[KiddCooties]

@Chainsoflawl That's because you didn't count how old you would be this year.

[paperguntut]

i did it for maths -_- :D

[jo951000]

@JordanCal11

You'll need one at 0 degrees.

[Skincheese]

It's basically a sextant where the only angle is 45 degrees

[JordanCal11]

yay now i can measure chuck norris's dick

[met2art]

@JordanCal11 You need to be able to reach the base of it. You wouldn't get close enough before you go roundhouse kicked.

[TypicalUsername1]

This reminds me of 7th grade :D

[zakyzeek]

@TypicalUsername1 haha, did you know its 9th grade now? kids are aloud to work when they're so dumb nowadays

[jstinch44]

@zakyzeek mfw he misspells allowed while calling children dumb.

[zakyzeek]

@jstinch44 ooo, you nazi'd me there. do you know how late it was when i wrote that? it's true as well.

[XCrypdanX]

Which of your 2 videos is more accurate, this says 36 and the other says 30 and i think is the same tree

[wiigcnds]

Oh, I thought you were gonna do some crazy stuff with tangents and all that. :P

[disgaea03majin]

Geometry :P

[Slure123]

Simple. But effective.

[JamDP1100]

Might as well take a 3 foot ladder and ITS length...

[RuniScan]

pythagoras FTW

[TheNightmareEdition]

Yeah.. because i carry around a protractor, a straw, tape and a tape measure.

[adtrPWNS14]

DUDE! You can do the same thing by measuring the length of the shadow, then the length of your own shadow. Measure your height and use proportion to solve... e.g. say you are 6 ft, and your shadow is 10 ft. If the trees shadow is, lets say, 120 ft... the proportion to solve would be 10/6 x 120/x. A lot easier!

[sagagossard]

@adtrPWNS14 well... I am an ass for maths, so I find his way easier

[sagagossard]

@adtrPWNS14 Well, I'm an ass for maths, so I find the method on the video easier.... besides, the length of shadow varies according to the time of the day (if there's any shadow in a cloudy day)

[norandomnumbers]

@adtrPWNS14

What if there is no sun to make shadows?

[slickrick9009]

@adtrPWNS14 Yes, but that has limitations. You can't do that if the sun isn't out. Besides, what fun is that? lol

[ChuckNoarus]

@adtrPWNS14 LOL HOWSTHATE ASIER YOU DAI,

[snoozinghipo]

@adtrPWNS14 I would like to see you try that with a skyscrapper!

[bogan182]

@adtrPWNS14 You didn't explain that properly

[lmjames7458]

@adtrPWNS14 what if you want to measure the object but it's cloudy out... hmmmm?

[meesternadim]

@adtrPWNS14 How do you measure 120 ft?

[Krion112]

@adtrPWNS14 However, unless there were two extra people, one measuring your shadow, the other measuring the tree's shadow at nearly the same time, if you did this alone, then it would take you time to measure both the tree's shadow and your own shadow, thus the angle of the sun would be changed, and the shadow would be slightly off. It could also cause a problem if the shadow is distorted. So, the video's way is more accurate than this way.

[grassvalleystudios]

@adtrPWNS14 What if it's a cloudy day?

[TheDragonicaFreak]

@adtrPWNS14 how u gonna measure your own shadow if your shadow follows u around :)

[Tsutomu6]

@TheDragonicaFreak

Couldn't figure that out?

Put some measuring tape on the gound in direction of your shadow, walk back til your heads shadow is @ zero, read measurement at your feet. Use sin / cos laws to calculate angle.

[TheDragonicaFreak]

@Tsutomu6 bullshit

[adtrPWNS14]

@TheDragonicaFreak shit, haha, i just went on this accout for no reason i havent been on it in a year

[WaffleNY]

TEECH MY CLASS!!!!!!!

[violintwilighter1]

umm a² +b²=c²?

[conman059]

its called trigonometry. you should have learned it in high school...

[LaSpeeda]

@conman059 I learnt it on the 7 grade

[R7Chava]

@LaSpeeda You need to go back to 7th Grade and learn how to spell.

[LaSpeeda]

@R7Chava Where the fuck did I misspelled wrong?

was it the seventh??

[xTheEmilyx]

@LaSpeeda "learnt"

[831678Anthony]

that phytagorin thyrum idk i forgot how to spell it srry

[killerinstinct1337]

This is applying the simple rule of Pythagoras' Theorem which states that the two sides opposite to the hypotenuse of a right isosceles triangle are always congruent and thus measure the same, and with these properties we could easily find out the measure of one the sides by applying the simple formula of :c2=a2+b2 , which in broader terms means , Longest Side2 = Short Side2+Short Side2 .

[jimstermy]

a fifth grader can under stand this, he made it so simple

[b0r3dum6]

dude are you like god in desguise?

[AussieKamikazi]

you can do this with a pencil, carrot, pen, etc. just keep walking back holding the straight object upright until it covers the whole object from top to bottom then you just turn it on its side and where the top of the object r holding ends just measure there to the base of the object by walking or whatever and bam u have ur hieght of the object

[doublin23]

Cool, Its trigonometry so hard to do. >.>

[n0ma11y]

We learned this in math class

[darkshadowscene]

simple algebra 1

[YoutuJ3eJ3lows]

A squared + B squared = C squared! :O

[callumdude10]

hummm....or wait until afternoon, where you shadow is as long as you, and measure itss shadow?

[AmnesiaHaze87]

hf measuring the burj khalifa with this method :x

[arceus9687]

Did this Trigonometry 

[pnoysoul]

Oh gosh i just took geometry -____-

[TheBAGman17]

@pnoysoul they always had us use shadows for measuring.

[fiscalchaos]

Wrong!!! It would need to 45 degrees from ground level if you measured along the ground as you did. Thusly, you would need to sight the opposite way through the straw to find the point to start measuring...obviously a tripod would be needed

[Borownik]

geometria w terenie ^^

[srb2Espyo]

I wouldn't mind learning trigonometry in school if it was just this kind of basic logic with triangles. But derivatives? Integrals? How's about a shotgun to the head while I'm at it?

[superfuckayou]

smart

[poilut2]

it doesn't work with my ..... D:

[blankblob]

a great way to teach people about 45-45-90 special right triangles

[umRuss012787]

thats awesome, cant wait to try it out. peace dude

[xXway2crazyXx]

You could just use sin, cos, or tan

[AussieKamikazi]

@xXway2crazyXx LOL

[10j35u5]

Hes making trigonomatry very fucking hard

[AC3ATTACK]

this is trigonometry. its not pythagorean theorm,.....

[marioluigiphone]

cool

[ShinGaming]

Nice math trick made easy

[Heyitsmikeandike]

Pythatgrion theory

[oldred890]

@Heyitsmikeandike pythagreon theorom, but actually, that is not at play much here because the tree hieght was determined by the fact it was a right isosceles triangle, where as the theorom is used for any right triangle. man, i need a life.

[killmyselfthinking]

See, now it's shit like this that made me fail Applied Math Two years in a row. . .I can stand directly under the fucking tree and look through a straw. . .so wtf? I don't get how you know "where" to stand to get that first measurement. . .and yes iantzylik. . .that is a really good method . . .i wish I could find whoever filmed this video and kick them in the kneecap. .

[TheKillysOwn]

@killmyselfthinking that's why there's a balance on it. You have to make sure the protractor is level with the ground when you're looking through the straw.

[Astrapogiannos14]

Just simple geometry lol.

[lasteve99]

trigonometry

[thupermann]

@lasteve99

lol :)) are you serious? trigonometry?

[lasteve99]

@thupermann yeah.we've discuss this on trigo and physics.

[WiiGamePlayer]

thats not 100% correct because your eyes are not on the ground they are about 5-6 feet above the ground so this is not correct

[Ray350tube]

I learned how to do this with a STICK in BOY SCOUTS! Hah!

[timykaien]

its easy with tales teorem (I study that with 13 years old)

[wahkao1990]

Tan 45 = (Opposite) / (adjacent)

(Opposite) = (adjacent) x Tan 45 = adjacent x 1 = adjacent.

Simple.

[NikkoThePinoi]

ohh 45, 45, 90 triangle, man i hated the special triangles for geometry

especially the 30,60,90 one

[jasonkutchma]

@iantzylik it didnt work :(

[Luis0J]

another way you could do it is, you could climb the tree to the top. you then fall and count how many seconds until you hit the ground. then multiply by 9.8 and you will get how tall in meters.

[Deosarian]

@Luis0J How would you remember how long it took after they scrape you off the floor?

[Luis0J]

@Deosarian

yeah, my whole point was a joke.

[Deosarian]

@Luis0J and mine wasnt?

[Iruini626]

@Luis0J well u forgot to count air resistance, humans don't go through free fall. haha

[doublexz]

why not just ask the tree?

[Agiyi]

I've read some comments talking about Pythagorean and you could use it... um... you can't.. You should know 2 sides to use Pythagorean people

[vaghatz]

@Agiyi What do you expect from f**ktards

[akamouse213]

put your head at ground level and make a right angle with your arm. back up until the object fits the length of your forearm (about 1 foot). measure the distance from your feet to the object. since your forearm and the object line up in your sight, you have just made similar triangles between your eyes + forearm and your eyes + object. (Distance to object) / (distance to forearm- about one foot) = (Height of object) / (height of forearm). no protractor necessary

[Kyrhen]

fail . how do u know when to sit . when to start too look and walk balk .you could see the top of the tree even in 2 steps ...but its still fantastic :D

[HOWTOIDK]

45-45-90 :DDDD

[Eleochess]

mmm it's pretty obvius

[alapso]

i was about to think this was the pythagorean theorem. never knew this

[PhysicsGuerrilla]

This is for all sixth grade dropouts.

In Excel or Open Office =Distance*TAN(RADIANS(Angle)).

-snicker inserted-

[aritmas]

wow Pitagor theory.... :D

[MrSteveand1]

pie pan with water (bottom painted black) & string ( length is distance from your eyes to toes)... drag pie pan to where you see reflection of top of object while standing back string's distant from pie pan. Now you have 2 Isosceles Right Triangles- the distance from the pie pan to the object is equal to height of the object. Assume the ground is level.

[Aqwert76]

awesome!

btw whats that song?

[ImNotLink102]

Well at least I'll know how big the trees are in my neighborhood.

[Staenderify]

wow, its easy....we do that in maths right now.

[miesrah12]

its simple trigonometry dumbass

[doublin23]

lol simple trigonmetry

[rahj8786]

it is just a simple trigonometry..

[simpsonstewie]

this is geometry idiot

[rahj8786]

this deals with 3 sides polygon, which makes you an idiot. LOL

[xINiiT12oGeINx]

dont hate appreciate

[santiagogonzalezbert]

my fault, isosceles = two edges of same length, not said anyting before xD

[santiagogonzalezbert]

good idea to measure tall objects, but an acclaration: this is not an isosceles triangle, is a rectangle trienge one (or at least is how it's named in spanish a 90 degree ange triange, may have another english translation) :P

[FunnyVidsIllustrated]

Or u could use Pitagoras.

A^2 + B^2 = C^2

[projectpat0392]

@FunnyVidsIllustrated

Yeah, well you would need to know at least two sides of the triangle. One of them would need to be the hypotenuse, which you can't easily obtain. This method is much easier. (Oh it's called the Pythagorean Formula)

[bchpln34]

lol, it aint necessarly a secret

its called SOH CAH TOA

[iantzylik]

here's another method, proven to be really effective by people like einstien and newton. take a piece of wood, measure the length of it. if it is approx 3 ft., use it to hit urself in the head. hard.

[lol3048]

@iantzylik i might try that idear lol

[fedaikn]

@iantzylik the best comment so far

[Nostrum84]

Dude. It is way easier than that. The answer to EVERYTHING is 42. Hell yeah.

[XxXDELTAxFOXTROTXxX]

Um, this is fun, but I hated Geometry.

[ontto91]

Basic mathematics with sins and cosins and tangents

[95Barqs1]

You are insane.

[alexisnotwrong]

yeah.... A^2 + B^2 = C^2.... geometry brother...

[imthetank3]

no the tree isnt 36 feet, from getting the base of the triangle, you divide the base by 10, and it gives you the other side. ( hieght )

[seanoma211]

haha no.

[ChronosFiltro]

@imthetank3

Hi , I'm from Brazil and I'm a math teacher.

If your angle is exactly 45 degrees , then the base and the height of the triangle will always have the same size. The video is right

[rmurali]

why we need the level bar? is it necessary to keep the level bar steady as we go back from the object looking thru the straw?

[ChronosFiltro]

@rmurali

The lever bar is important to make sure that the angle is exactly 45 degrees...

[ocliu]

@ChronosFiltro

Brazil's math is different from USA's math

[NineTailedDemon]

@ocliu USA measurment system is the international oddball. so this method is much more accurate.

[russellreal]

@ChronosFiltro however, the video is wrong, as he is looking through the straw not from ground level, therefore he is angling the 45 degree angle, therefore he is doing the math wrong.. what he would have to do is attach a mirror to the base of the protractor..and use the reflection of the mirror.. attached to the protractor on the floor.. to get a precise height of the item he is looking at :)

@russellreal

You are right!!

But you can do something else... if you look through the straw standing up , you can measure the distance between you and the tree and than ADD you height to the value you got before.