Added: 4 years ago
From: wogsland
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  • Please... teach your kid to use metric units.

  • Fake

  • Comment removed

  • BRILLIANT!

    AhAHAhhahaHAHaHahahahahaHaHaHa­hahaHHha

  • Is it just me, or does anyone else dislike when parents "show off" intelligence in their kids to make them seem like prodigies, when the children dont know and/or dont fully understand the concepts?

    Just sayin....

  • @Apoc269 I think it is good exposure for the children. Being in an academic environment or involved in applying scientific principles promotes critical, logical thinking and is a catalyst to further their interest in the field. I applaud this parent. And I think you're just jealous. Just sayin :) I'll admit though, I certainly am jealous too, because my parents never did such things when I was a kid.

  • @tyrandan2 I'm not jealous, when i was this kid's age i was learning C++ and x86 assembly, on my own accord. My parents were community college educated and did nothing more than get me a computer and the internet, the learning came from my self. By 10 I was designing electric circuits and had an understanding and knowledge of application of RF theory.

    I do agree parents teaching is a good catalyst to promote interest, but putting a kid in on the spot can also promote disinterest later in life

  • @Apoc269 I think the girl learned something from it. Only a dumbass would agree with your post that this was the case here

  • I would have opened the chocolate instead of ripping it randomly .. thumbs up if you open a chocolate bar in a more civilized way :D

  • this is so cute.

  • SANDY BALLS!!!!!!!!!!!!!!!!!!

  • boring

    

  • im guessing you are a very proud father/mother

  • lolwat

  • you think it is just the speed of the wave, not necessarily the speed of 'light' itself, since, it is my belief that light just is?

  • But I already know that the speed of light is 300,000,000m/s...

  • the truth is that we cant measure the speed of light. u didn't measure velocity . u measured frequency of you microwave...

    because light is misunderstood. look it up people

  • microwaves are not light waves

  • @GoodArtStuff it IS part of the EM spectrum, so yea, technically it is light

  • The videos on the same topic by "jcflyer58" and "bsanii" and others do this correctly.

  • The distance measured between melted spots in the chocolate (~ 4 inches) is actually half of a wavelength. Since this is a standing wave, then troughs and peaks occur at the same point: by nature of a standing wave pattern, the trough becomes a peak and vice versa, over and over again (google for "standing wave animation" to see what I mean). Therefore the actual wavelength is 8 inches. Multiplying this by the frequency gives 19.6 billion inches per second. That's 66% error.

  • 200billion chocolate bars per second.

  • So are you saying the speed of light is 8.9 Ghz per inch? Is that even a measure of velocity?

  • @crodownes 4 times 2.45 is 9.8, not 8.9. So the speed of light is 9.8 GHz TIMES inches, and yes, that's a measure of speed (since GHz means "billion times per second"). So in their experiment they find c = 9.8 billion inches per second, which is pretty darn close to the actual value of 9.835 billion inches per second. However, they never "measured" the frequency, they just looked it up from the label on the bottom/back of the microwave.

  • @simkn77 Oops, calculator user-error on my part... the actual value of c is 11.8 billion inches per second. Even so, that's about 17% error... not too bad for microwaving a chocolate bar I suppose.

  • @simkn77 No, you were right the first time. its roughly 9.836 billions inches/second

  • @simkn77 oh wow, looking back on that comment i was pretty wrong in saying that. thanks for the info, learning is always a pleasure. especially via internet. and lol at thecrampz

  • Boy I feel stupid. When I was that age, I discovered what 2+2 was.

  • Taking the plate out wouldn't do anything microwaves are built so the waves are constantly moving obviously spinning or not it's still going to cook evenly

  • This is actually darn good. I would have never thought of determining RF wavelength in this way - and really cute. Thanks

  • q=m*c*(delta)T

  • did anyone notice at 0:40

  • Even if she weren't reading from a cue-card, it would be incredibly simple for her to look this stuff up on wikipedia for like an hour and memorize it well enough to do this. 

  • Awesome....If you didn't like the video your an idiot.

  • you hear that!? at 0:25 i learned that a microwave sets out a standard standing wave !!!!! (dont you have better things to do than microwaving candy bars.. like going to school and learning to talk right

  • Cocholate = (mmm/yum/yum)^2

  • thats likes microwaving $10 >_>.......

  • Smart child. :) 61 don't like this? Huh?

    61 persons actually pressed "thumbs down". Whats wrong with you guys?

    I guess someone got that painful feeling of cognitive dissonance when they understood that the child was smarter than themselves. :D

  • V = F x LAMDA !!

  • its hermonine

  • @NickandFriendsCo less pretty. quite a bit less

  • Shouldn't you be using cm?

  • ... but really she is in college

    she is like 20 but since she's so smart, she has figured out how to stop aging at 'apparent' age of 12...

    i wish i was as smart...

  • If that little girl were like me, that chocolate bar would have disappeared faster than the speed of light. I also think it is wrong to put a perfectly good chocolate bar in the microwave oven.

  • @crdrewsthesame I wouldn't call Hershey's a perfectly good chocolate tho... but coming from Europe maybe I'm spoiled...

  • @crdrewsthesame She did it for science!

  • @crdrewsthesame if were that little girl i wouldve thrown that discusting hershey bar in the bin

  • im glad you didnt throw away the chocolate

  • The speed of light isn't 299,792,458 m/s, that's only in a vacuum. the number they should have gotten would be less.

  • HAHAHA! How cute! 

  • yikes what a butter face!

  • you forgot to measure the chocolate bar AFTER YOU TOOK OFF THE WRAPPER! ;]

  • practice your hand writing 

  • God, is kind of ovius that she doesn¨t really knows almost anything about that things , she is looking at someone behind to know what to say

  • she is reading something from behind the camera...

  • If you can trow hard enough you can measure the speed of light too with a 7 inch choc bar.

  • @zaominach im gonna practice more with my throwing arm, i only have to throw my candy bar 6 trillion more km until i reach a lightyear. think i can do it? :D

  • @daberko120ch Yea, just train enough and don't eat too much choc bars :D

  • Smart kid...

  • so you have a 240 volt microwave with ~ 50 hz on it

  • One question, WHY THE FUCK IS A 9 YEAR OLD GIRL TELLING ME WHAT IS SPEED OF LIGHT?

  • I already wave a chocolate 5 minutes, but why it burn!

  • just draw and say random things to make you look smart works for me o.o

  • NightRunner, the fallacy (joke) in this project is the claim that the peaks and troughs which appear on the chocolate bar directly correspond to the wave frequency of microwaves which heat the chocolate. The standing wave energy in the bar may result from microwave energy, but the "bumps" on the chocolate result from the specific density and flow of the material.

    You can't just claim these correlations, eh. Where's your evidence of correlation?

    Try a control such as water or a proton.

  • No, the "bumps" as you call them are melted chocolate caused by RF hot spots, which are made of the specific intensity of the microwave energy across space. You can visualize this easily by placing a stick of margarine inside the mic on the turntable and watching how the hotspots of microwave energy cut it apart as it rotates. When you see it actually happening to an object in motion, it's easy to see that it's a fixed position invisible phenomenon that the object is passing through.

    A proton??

  • @NightRunner417 lol neerd fight! xD

  • shes making me jealous of her chocolate. >:(

  • It seems mean to refer to this child as a troll, but sadly, she is.

    The frequency, wave length and speed energy have nothing to do with the length of the chocolate bar or the position of the points on the chocolate bar.

    The "peaks" and "troughs" she refers to also have nothing to do with the frequency, wave length or speed but rather only result from the specific gearing that the manufacturers have chosen for the revolutions of the plate.

    A troll also uses fake logic and arguments.

  • @TrumanGN The peaks and troughs she referred to, as she explained early on, are the result of standing waves, and she clearly stated that the rotation of the plate is to eliminate the effect of these strong and weak spots of cooking food in an uneven manner. This is why she moved the plate so that it wasn't rotating. These pockets of standing wave energy are a direct result of wave cancellation and reinforcement, which is a function of wave frequency inside a confined, reflective space.

  • 0:56 SMILEY FACE, (=

    and someone explain to me why she is a troll, lol, i dont get it.

  • i dont care about the speed of light, just lemme eat the chocolate. :P

  • u go girl

  • shoopus my woopus BLAH!!!!!!

  • nerd

  • i don't get how she is a troll

  • pot head

  • Awww. A troll in the making.

  • OMG SHES 1- AND SHES ALREADY A TROLL!i wonder if she knows any good bridges to hide under!?0.o

  • Dude, physics at 10! fucking awesome!

  • adorable and delicious.

  • 2.45*10^9*4*2.54/100 = 248,920,000 m/s but the right answer is 299,792,458 m/s so the 4" should really have been 4.8" or did I get the math wrong?? (I mean, that _is_ off by almost 20% in her calculation?)

  • Is there a way to practically determine the frequency of a microwave without reading it off of the box?

  • @zippyman818 Yep, since we know the speed of light, and can measure the wavelength (from wave peak to wave peak) on the chocolate bar, we can solve for frequency. if c=hz times wavelength, then Hz = wavelength divided by the speed of light. Cool video.

  • @petrox5 Agreed, cool video!

  • @petrox5 We could also just eat the chocolate bar you know....

  • @arnedagsfghfgh Yes, and the frequency of the chocolate bar would be: delicious!

  • @petrox5 I disagree, the true frequency of a chocolate bar is: snacktacular!

  • @piloy123 LOL, snacktacular at 1.23454321 bites per second. I'm laughing so hard it Hertz!

  • THIS kid is going places. Do EVERYTHING you can for her. Thanks for the video.

  • Fine reward after a science experiment. Cool!

  • I think it is absolutely wonderful that these children are learning about science and mathematics by exploring things are part of our lives on a daily basis. The scientific literacy gained through experiments like this is worth so much more than memorizing e=mc^2

  • Awesome!

  • She was so cute. :-)

  • you can do the same with cheese ;)

  • i just got owned by a girl but still your theary is very well thought out why did i not think of it well done

  • Woah THAT is interesting!

  • Love this video!! For completeness I would like to see the actual calculation worked out, but minor issue. But what a wonderful experiment to do at home with your children! True science. Your daughter (assuming it is your daughter) is simply beautiful, brilliant and entertaining. You deserve to be proud.

  • now I feel really stupid!

  • How refreshing is this!? Very. Great to see content on the web that's educationally oriented with children involved, rather than all the fluff that's so prevalent. Great job Dad!

  • lol retarded x5

  • This actually works.. 4 inches is the wavelength, not the speed of light. But given the frequency and the measured wavelenght you can easily calculate the speed :)

  • this is so gay

  • Wow this was incredibale, thumbs uo if your the same age as her, cause i am!

  • That would be testing the speed of the microwaves, having nothing to do with the speed of light, if you rubbed in the circles (which don't really mean much) then that changes them anyways, and you gave speed as a distance.. which doesn't make any sense. if you had said 4 inches per something, that would. Also, it seems as though she is constantly looking to the side of the camera during any sort of calculations, meaning she's being fed information from parents. So for the first time, i say FAKE.

  • @evilwolfdemon1 you dot really get it do you ..at all

  • @evilwolfdemon1 Microwaves are the same as light. Light is an electromagnetic wave, as are microwaves, Microwaves just have a much lower frequency and thus a longer wavelength. She measured the wavelength to be 4inches which is 0.1016 meters. speed of light = frequency x wavelength. 2 450 000 000 x 0.1016 which is roughly 245 000 000 m/s which is not a bad effort. The actual speed of light is roughly 300 000 000 m/s . Good to see science at home !

  • The error would be as result of it being hard to measure from center to centre accurately on the melted chocolate, and because microwave manufactuers lie about what the frequency of the microwaves being produced are. A result of 245million m/s is a pretty good result given a microwave and a chocolate bar. The maths and theory she used was perfect.

  • the peak to peak looks like nipples

  • how many times did she say umm

  • Comment removed

  • @dadslad125 More times than you could m8. She is a kid who presented well, given the subject. I doubt I could do a better job. BTW, you spelt HERE, as HEER in your previous vid. lmao

  • @mrmups hahahaha, i bet u r a fat obese old man who is unloved, and that was no insuld saying

    "more times than you could m8" and for the reccord mr fat ugly obease man i knew i spelt HERE as "heer" BECOZ I FUKIN MENT TO

  • @Yummymercury You do realise that any dumbfuck with a computer can edit wikipedia, right?

  • @Exzadara615 However in this instance Wikipedia's information on the speed of light in a vacuum being 186,282 miles per second is correct. (before you say the experiment was not done in a vacuum, let me be the first to point out, given the parameters of the experiment, with the error induced from measuring the chocolate, and the error due to the microwave manufacturers lying about the microwave frequency, the difference between the speed of light in air and a vacuum is negligible)

  • speed of light is 10 inches??? is that even possible?

    well if you want to do it properly,you have to set a full body radar pointing at my head,then track the movement of my mouth ,give me the chocolate bar and time how fast i eat it...simple!

  • numb encore

  • WoW!! Very talented. I had no idea.

  • Amazing demonstration! That chocolate bar wouldn't have survived the trip from the wrapper to the microwave in MY house.

  • ridiculously smart kid

  • But.. I would eat the Chocolate bar faster than Light LOL

  • You don't even really know what you're talking about, do you? You're like 10!

  • lrn2centimeters, americans

  • @lamarrrrr American here, I was appalled when I heard "inches." Especially in a video having anything to do with science.

  • sweet! ;-)

  • Bravo. What an excellent way to explain how a standing wave works. As a laser engineer Iloved it

  • so the speed of light = 4 inches * 2,450,000,000

    which means the speed of light is 9.8 Billion inches/second

    Or 154,671 miles a second

    the speed of light acording to wikipedia is 186,282 mps

    Thats pretty close!

    Smart kid!

  • then how fasl is it huh

  • I know her for real

  • we confirmed our mu lambda equation which gave the peak to peak distance as 4 inches. One might argue our measurement is actually only lambda/2 as the trough (peak) corresponds to a maximum as well - therefore our mu lambda eqn. should have provided a characteristic wavelength of 8 inches. Food for thought!

  • Give the hershey bar to a woman on her period.. GONE at the speed of light!

  • wow she is way smarter than my teacher!! nice job!

  • @nunucpt how dumb is your teacher?

  • @plushieboy1234 extremely dumb.

  • @nunucpt well that isn't very surprising.

  • A true scientest in the making. Good job.

  • @xCr3ePiNgD3tH sorry but what you say is truly incorrect. the time in earth and the time in space is both different. once you travel at the speed of light , you have to think the time on space and the time on earth , the magnetic force in space is too strong that it makes time runs much slower. if you are still referring to time is time than i guess you're just a grade five kid.

  • cute "fwequency :P

  • Wrong.. 299,792,458 Meters per second.

    Great thought tho, bribe the kid with choclade. xD

  • damn that is quite a clever idea, I hope she didn't think of this experiment herself cause that is frighteningly intelligent

  • type "c / 2.45 GHz in inches" in Google.

    you get

    "the speed of light / (2.45 gigahertz) = 4.81749089 inches"

    apparently you (or your daughter I suppose) uses the common residential microwave oven frequency of 2.45 GHz

    That means your ending wavelength (from the source) should be almost 5 inches. Assuming the chocolate is struck at an angle, perhaps 3 - 4 inches.

    Nice Video.

  • Apart from it was like a half inch off and scaled up to the speed of light you would be off by approx 26,250 miles per second but cool idea.

  • the speed of light = 299 792 458 m / s dont look the video.

  • She is 10 and is alrdy a troll O.o

  • @B3tterTh4nU : Don't be a jerk. She is cute and learning something. She knew what I did not..in fact i learned something too.

    Americans are so rude and unhealthy minded.

    What did you do when you were 10yrs old? (I won't even bother speculating).

  • 3:35 expelliarmus

  • ??? O_O ??? WTF ???

  • Bullshit little kid I wish this was in 3d so i can pretend to choke you.

  • she drew boobies

  • who cares what the speed of LIGHT is.

  • @redhairedstallion little do you know the speed of light is the only pure constant in the universe...

  • @atrainskate Oh yeah, I forgot how we need that.

  • @atrainskate that and taxes.

    

  • or you could take the speed of light and divide it my the freq. to get the wavelength

  • Get it right and stop hesitating or I will pull another head off your barbies. Just kidding that is pretty cool.....

  • Yeah, the Linkin Park sealed the deal. I wish people were teaching me that kind of stuff when I was a kid. Damn good-for-nothing public education system.

  • ffs the speed of light is 180,000 miles per second we dont need your bullshit microwave

  • @sawu101

    You don't own a microwave where do you live IRAQ?

  • @Magcomplex i didnt say  didnt own your tard i said we dont need your bullshit microwave meaning how is a microwave gonna tell lightspeed

  • @sawu101

    Oh oh oh...you didn't watch the video, because if you had, she explained the math behind the wave function, she was little off on the frequency of the microwave given she did not really know it. BUT, her experiment was an accurate way to do it...from kid stand point. Hmmm Just looked at your site, maybe you should stop playing video games and watching south-park and actually do something with your brain instead of messing with someone who is doing something with theirs.

  • and the speed of light is????

  • @iownudie108 the speed of light is a calculation for distance. a light second is 186,000 miles (300,000 kilometers) A light year is the distance that light can travel in a year, or:

    186,000 miles/second * 60 seconds/minute * 60 minutes/hour * 24 hours/day * 365 days/year = 5,865,696,000,000 miles/year

    A light year is 5,878,625,373,183.608(5,865,69­6,000,000) miles (9,460,730,472,580.8 kilometers)

  • @iownudie108 so basically if u travel to a star and back for 1 year , you aged 1 year , your friends and family will be aged 10 years

  • @wisdomso

    thats bullcrap it doesnt matter where you are time is time you age 10 years if its been 10 years!

  • @xCr3ePiNgD3tH Lol, you know basically nothing about relativity.

  • @xCr3ePiNgD3tH Actually time goes to a near standstill at the speed of light. So If you travelled at the speed of light in a spaceship for 20 years and come back to earth you wll have aged like 1 day or less when everyone else had aged 20 years. We age at the same rate on earth because everyone is going at roughly the same speed the earth is moving.

  • @J0RDSKI

    AHHHHH SO CONFUSING

    im good at science and all but damn

    SCREW THIS IM OUT!!!

  • She is so hot, any more of her ?

  • wow she made boobs

  • kute

    

  • omg! i did this lab at school and im a junior....in physics class....=] this kid is smart!

  • @marshmallowlover899 or her parents gave her a script XD

  • @brandonmit HAHA! that may have been a possibility...but still takes skills...=D

  • You are ignoring multipath effects which render this experiment useless.

  • lol, i've never seen frequency represented as mu before...