One of the things that I think I find kind of most remarkable about what
modern physics has to tell us is the very nature of the elementary particles
that make up material substance. Stuff like water for example is made of
molecules H2O. We know that those hydrogen and oxygen atoms are made of
nuclei and electrons. We know the nuclei are in turn composed of protons and
neutrons. In the last 40 or 50 years we learned that protons and neutrons are
themselves not elementary particles - they're actually composites made of up
and down quarks and one of the really interesting aspects of this story, in a
sense, is first of all that the theories don't hang together at all, in
fact they don't even predict particles with mass unless we imagine that there
exists this rather mystical quantum field that spreads throughout space-time
called the Higgs field and the characteristic fluctuation of the Higgs
field is this thing called the Higgs Boson.We know from the discovery at CERN
in Geneva in 2012 that the Higgs Boson really does exist and the purpose of the
Higgs field is to give elementary particles their mass. That in itself
though doesn't explain quite what's going on with the mass of ordinary
substance. Take a proton, two up quarks and a down quark. If we add up the masses of
the individual quarks we get only 1% of the total mass of the proton. Where's the
rest of it? is a, you know, legitimate question and it turns out that we can
actually understand where the rest of that mass is gone - it's present in the
energy of the quantum field of the gluons that help bind the quarks
together inside the proton. Now Einstein's famous equation E=MC
squared was actually never given in his original
1905 paper in quite that form. In fact the equation that he gave was M (mass) is
equal to E divided by C squared. The mass of a body, an object, is a measure of its
energy content and that is the real revelation of Einstein's famous equation.
So the mass of everyone, all substance, is in fact to be found in the energy of
the quantum fields that hold matter together.
For more infomation >> What is 'Mass'? It's Energy. Einstein Was Right. - Duration: 2:50.-------------------------------------------
What Was the First Auto Casualty: History in a Minute (Episode 42) - Duration: 1:57.
Good day everyone. Mr. Phillip Campbell here with Homeschool Connections History
in a Minute. I am your bearded nerdy history guru. Hey, let's think about
traffic fatalities. Every year in the United States tens of thousands of
people are killed in traffic accidents. But you ever wonder who was the very
first person ever killed in the traffic accident? and when did it happen?
Well, this dubious distinction goes to a woman by the name of Bridget Driscoll
from England. And Mrs. Driscoll in August 1896 became the first person killed by
an automobile. She was walking across a place called Dolphin Terrace with her
family, near the Crystal Palace, when she was struck and killed by an exhibition
car. This is a car that was out giving rides and demonstrations of what
automobiles were. She was struck and killed by a primitive vehicle going at
the alarming rate of four and a half miles per hour. That's right and she was
injured and died of her injuries. The investigation later declared an
accidental death and nobody got in trouble. I'm not certain how being struck
at four-and-a-half miles an hour killed her nor how she didn't manage to get out
of the way of the vehicle going four and a half miles an hour. By the way, the
average pace at which a human being walks is about four miles an hour so I'm
not sure but at any rate Bridget Driscoll was hit and killed August 1896
the first traffic fatality. Hey subscribe. If you want more interesting history
factoids like that. And remember history is awesome! For Homeschool Connections I
am Mr. Philip Campbell signing off. See you next time.
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WHAT'S IN THE BOX!? - Duration: 4:18.
Hey everyone what's up welcome back to my youtube channel
I'm Jacob and today we are going to be doing the guess what's in the box
challenge now my friend Zack is standing right behind the camera and what he's
gonna do is he has five different objects and he's gonna place one object
in the box at a time and using my hands I'm gonna have to try to guess what it
is then at the end we're gonna tally up how many right out of five that I got
and we'll see how I did so let's get started alright so I don't know I
Oh what if I pushed too hard to correct in my hand I'm not happy
oh it has a texture I don't know if I've ever encountered before I'm really
nervous don't I know what this is wait oh oh it's a wrap I want to know
this feels like a banana skin he's alright
what's inside why is it soft and crunchy at the same time I'm just gonna say a
banana it's a banana cut into the shape of a Mickey Mouse head covered in gold
that's what the grungy part was oh okay next okay so that's a ball and in a
vault yeah so hard is this ham is it ham in water do I get it it's a full let's
burn up what ham what the heck oh my this you what's inside of it
feeling like sprinkles feels like shaving cream that sprinkles and shaving
cream no it's not heart-shaped sprinkles on a couple of
hours dude this is good oh oh oh it's a Nerf dart dart oh oh it's a k-cup why is
there hope is that the inside of it what is that that's like bluff or something
I hope I don't know I'm gonna gasp oh this better not be cream cheese okay
what is that oh alright thank you guys so much for watching this was a lot of
fun I hope you liked it remember to Like and subscribe and we'll see you guys
next time bye
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What was life like during the Paleogene Time Period ? - Duration: 1:27.
Welcome to MooMooMath and Science In this video, I would like to talk about
the Paleogene Time Period Paleogene Time Period
The Paleogene time period is part of the Cenozoic era.
It lasted from 65 million to 23 million years ago.
The climate at the beginning of the Paleogene time was tropical.
This resulted in mammals, birds, and insects to scatter throughout the world.
Mammals prospered during this time.
Many of the animals we like today including dogs, cats, and pigs appeared in the Paleogene.
Sharks and whales roamed the ocean and freshwater fish branched out.
With the growth of insects, including bees flowering plants began to spread throughout
the world.
Monkeys begin to appear.
There were also several important geological events
The Himalaya mountains were created North America and Europe separate and sea
levels were low.
At the end of the Paleogene climates begin to cool.
So there you go, the Paleogene time period Thanks for watching and MooMooMath and Science
uploads a new Math and Science video every day
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Boy Knocks On Door For Help Was Not Prepared For What This Man Would Do - Duration: 2:16.
Boy Knocks On Door For Help Was Not Prepared For What This Man Would Do
We are told at a young age to never talk to strangers and as adults we tell our kids the
same thing.
A young boy in the United States however, was desperate and did not think about that
advice when he started to frantically knock on doors in his neighborhood.
He had missed his school bus and needed help, but he wasn't prepared for who finally opened
the door.
At first glance, Brian Smith looks like a big, muscular and pretty serious guy with
tattoos — someone you probably woudn't want to mess with.
But never judge a book by its cover.
Brian is living proof of just that.
When the young boy missed his school bus that day, he became desperate and began to knock
on every door in his neighborhood.
He asked anyone who opened if they would give him a ride to school, but nobody wanted to
help — until Brian opened his door.
Brian explains in a post on his Facebook page how he was fast asleep when someone banged
on his door first thing in the morning.
"I open it like what up 'lil homie'," he says in the post.
The boy told Brian that he'd missed his bus and knocked on three doors before him,
but nobody wanted to help him.
Without a single hesitation, Brian, who was half asleep, woke himself up, put his shoes
on and drove the little boy to school.
"Go get that education young 'brotha'!"
Brian says in his Facebook post.
Brian's Facebook post has now been liked by over 300,000 people and shared by over
134,000.
Hundreds have left comments praising the young man.
"Thanks for taking time out to help a child who needed it, there are not many people who
do that nowadays," says one comment.
It's nice to see that neighbors still help neighbors.
Please share if you think the world needs more people like Brian!
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