ShmoopTube

Where Monty Python meets your 10th grade teacher.

Search Thousands of Shmoop Videos


Chemistry Videos 44 videos

Chemistry: 1.1 Lab Safety
570 Views

Don't even think about stepping foot into a lab until you drink a nice big cup of safe-ty. Safety lesson number one: do not listen to this descript...

Chemistry: 4.7 Atomic Emission Spectra and Flame Tests
395 Views

Today we're playing with fire. Wait, we're not supposed to say playing...having fun with fire? Today's lesson is on the colors that can be emitted...

Chemistry: 2.1 Significant Figures and Scientific Notation
408 Views

These figures may not be significant to you, but they matter to us, okay? Oh, and to Science. They matter a ton to Science.

See All

Chemistry: 4.9 Walk the Planck 58 Views


Share It!


Description:

Yarr, we be talkin' about Planck's constant today. It doesn't actually have anything to do with pirates, but we'll take the opportunity to talk like one whenever we get it.

Language:
English Language

Transcript

00:04

Only a handful of

00:05

individuals in recorded history have

00:07

been lucky enough to have their own [Man wearing prison clothing]

00:09

number. Avogadro has one. So do you Euler, Newton, and Hubble.

00:15

And don't forget about

00:16

Nathaniel fifteen, and we're sure you've all

00:19

heard of that one. Yet another scientific

00:21

brainiac to lay claim to a number of

00:23

his very own was German theoretical

00:26

physicist and life of every party Max [Max Planck wearing a party hat]

00:29

Carl Ernst Ludwig Planck. This guy had

00:33

almost as many brilliant ideas floating

00:35

around in his head as he had middle names.

00:37

Planck's Constant, the number that

00:39

totally put him on the map,

00:40

is 6.6262 x 10 to the -34 joule-seconds. [Plancks constant example]

00:46

We have to admit, that it's an awfully good number.

00:49

But what is this mysterious number and

00:52

what's so special about it? And what in

00:53

the name of all that is good and holy is

00:55

a joule-second? Yeah, we hear your cry. A joule-second

00:59

is not part of a diamond-encrusted wristwatch, although [Diamond wrist watch ticks]

01:02

if you'd like to get us one of those as a "thank you"

01:04

for teaching you about Max Planck,

01:06

well, we won't complain. All right, let's

01:08

break it down. A joule is a unit for [Definition of joule unit]

01:10

measuring energy, and a second is one-

01:13

sixtieth of a minute (you know, you knew

01:16

that one), so a jewel second is a unit of

01:19

energy over a certain span of time. Like

01:23

any great scientific constant worth its

01:25

salt, Planck's Constant is also

01:27

represented by a single letter in the

01:29

interest of simplicity. You can just [Planck's constant with the alphabet]

01:31

write the letter h instead of writing

01:33

out the entire thing. The alphabet says

01:36

"You're welcome." Okay, now what is this thing, and

01:38

why does it deserve take up valuable [Man's head opens and words go into his brain]

01:40

space in our brains? Well, in the course of

01:42

Planck's experiments, in which he was

01:44

trying to understand a little more about

01:46

atomic theory (in particular the question

01:48

of whether or not there is a continuous

01:50

fluid spectrum of energy), what Planck

01:52

discovered was that, no: energy was [Energy, Frequency and Velocity drinking coffee together]

01:55

something of an oddball in that department.

01:57

He proposed that energy instead came in

02:00

units called "quanta." Yep, the root of

02:03

the word quantum, which is the root of the

02:05

TV show title called Quantum Leap, which is [TV screen with the TV show Quantum Leap]

02:08

getting off topic... But Planck concluded

02:10

that the smallest possible unit of

02:11

energy was 6.62626 x 10 to the -34 joule-seconds,

02:16

and that's how he got himself his own number. If your're

02:19

feeling jealous of Mr. Planck and would

02:21

like a number yourself, well, 6.6262 x 10 to the -35 [Man holding news paper with Planck's constant on front page]

02:26

joule-seconds is totally available.

Related Videos

Jane Eyre Summary
123033 Views

When you're about to marry the love of your life, not many things could stop you. However, finding out that your future hubby is keeping his crazy...

What is Shmoop?
91411 Views

Here at Shmoop, we work for kids, not just the bottom line. Founded by David Siminoff and his wife Ellen Siminoff, Shmoop was originally conceived...

ACT Math 4.5 Elementary Algebra
492 Views

ACT Math: Elementary Algebra Drill 4, Problem 5. What is the solution to the problem shown?

AP English Literature and Composition 1.1 Passage Drill 1
1039 Views

AP® English Literature and Composition Passage Drill 1, Problem 1. Which literary device is used in lines 31 to 37?

AP English Literature and Composition 1.1 Passage Drill 2
683 Views

AP® English Literature and Composition Passage Drill 2, Problem 1. What claim does Bacon make that contradicts the maxim "Whatsoever is delig...