How an atomic clock works, and its use in the global positioning system (GPS)

Have you done a vid on time dilation? I think you would do great explaining it and how the clock measure dilates but not out ages like people assume

QUESTION: Why does the GPS system have a Sagnac equation built in? For what is it adjusting?

And to think that there are still flat-earthers among us, using their smartphones to reach the nearest Walmart brench while they're convinced that satellites are fictional.

Hi Bill, I have another question, how can a satellite that's moving know it's own position over earth(coordinates)? Wouldn't the satellite need to use a fixed reference on ground to know it's position?

Hi Bill, how does a GPS module get it's time synchronized?

Because if I comprehended right, the satellites send a signal with their position(coordinates/location above earth) and exact time of transmission, and the receiver receives this signal and compares the time of transmission to the current time to calculate how far the satellite is(the more time difference the more far the satellite is, and vice versa), but if the receiver doesn't have synchronized time how can it know how long it took for the signal from the satellite to be received?!

i don't even listen to him i just want to eat the jello

And yet science claims their is a greenhouse (solid? Liquid? Gas?)
Above the earth.
Is it semi-permeable to rockets and self heals (lest the air escape into the vacuum of space and we all die)
And yet the satellites can't show and upside down oil tanker sailing to NZ.

Density works.
The firmament works.

Mankind works.
Yah works.
The cross works.

Wowzkey

😮 science fiction… amazing!

Explained, but I still don’t understand

It's a size of a quarter you say? I see ateast a dollar or 4 quarters.

I call BS to his first statement as to a man made clock being so accurate as to losing only 1 sec in 138 million years? Where is the QED for this? To make such a statement is pure arrogance. Not to take away from the accuracy of clocks as the creation of time for man and its metric is very important for sure. He says its about the size of a quarter? Actually a 50 cent piece. He was way off on that approximation and yet accurate on how it only loses 1 sec in 138 million years? According to my calculations I get 139 million years. So. He is only a million years off.

So how do engineers know what time is in order to clock or calibrate a Cesium Atomic Clock to it? What is the reference time used?

AH SO HOW DOES IT WORK.

It Must Be Jello, Cause Jam Don't Shake Like That

I had to watch it four times to figure it out. I think you talk way too fast… At least for me you do you need to have some space so that we can digest The concept. Thanks though I didn't understand it

Love these and very well explained too!☘️👍

And that is how you Distract the Nation… With more False information. You don’t even know how many minutes there are in an AVERAGe day. So the clock has no BASIS

Came here for Gene Hoglan, stayed for a dude tapping jello

lol I was so far off in my assumption as to how those clocks work. even if I'd know that quartz could oscillate, I'd never have been like "oh, well obviously we should keep time with this"

Great music too :-)

Add to that, LIDR which has accuracy down to 1mm for height on land.
With the two combined, we’ve got extremely accurate land maps.

I liked the 3 spheres used to triangulate position. I have wondered how LIGO, the grav. wave detector localizes a source of grav. waves. No one has explained it clearly yet. Your diagram might be the explanation.

I got lost in the middle. Does the little chip shown at the beginning have a cesium oven? What temperature? It seems that cesium atoms are eventually used up. How long does the cesium last?

Huh?

😂

I understood an atomic clock as a frequency counter. Your explanation is way too complicated to understand.

He lost me when he moved past the Jello.

we are limited with perception

No idea why I watch such as this as to do so makes me feel dumb as a damn rock and I wonder who figured all that out.

You can’t beat a nice pendulum.

And yet Google demands to use WiFi for "improved accuracy" on your phone. Liars.

Who else paused this vid to grab a jello from their pantry⁉️🤪❓🤷‍♂️

you havent aged a day!

The mark of a great, nay brilliant teacher, ..taking complex subjects and making them both easily understandable , and entertaining. Thank you , once again Bill. :)

That's my company!!! I can't believe it'd be mentioned in an Engineer Guy video!

honestly, i expected it to be way more complicated

He shows a chip scale atomic and they work very differently from the description .

Still, the most interesting channel on yt. This guy's voice can turn my head in his direction.

Something doesn't seem right here... how do you manufacturer a quartz crystal to exactly the correct size/shape to obtain that kind of accuracy? Maybe since it's not a mass produced clock they start with a slightly larger crystal and iteratively optimize its shape

Electricity is a hammer that taps the quartz at an almost perfectly stable frequency but slows down a bit. Caesium is a second hammer that taps the first hammer when it does slow down a bit. Brilliant.

Thanks

Please watch ... Einstein's Twin Clock Experiment …

AMAZING

Wtf i didn't get anything

I have two questions.
Where is this Radio wave generator? Inside the atomic wristwatch?
How do we detect the exact frequency coming out of the quartz crystal?

stupid bg music! just annoying :/

"I'm Bill and today I'm going to explain how the entire world's GPS remains accurate to millisecond levels with Jello."

You totally lost me after the jello.