Building Blocks of Matter

Since ancient times, humans have inquired about what makes up the world around them. In antiquity, the Greeks believed the world to be made up of earth, water, air, fire and the aether. Today, researchers at Jefferson Lab study quarks and gluons: what we now believe to be the fundamental building blocks of the atomic nucleus. Jefferson Lab's research on the building blocks of matter will be presented along with a discussion about why you should care.

Speaker: Dr. Douglas Higinbotham
Date: October 7, 2014

[manickamdhayalan]

Thanks a ton Jefferson Lab team, for posting such a wonderful video. I was able to review myself as an engineer. More insights appeared in my mind after watching this great video.

[ayah_affandaily]

even his tie is made of radioactive signs, what an inspiring lecturer 👍

[SteveBergen]

Earth, water, air and fire. (As the Greek named it in the past) could have been resembling  Solid, liquid, gas and plasma. But that is just a small thought

[azuleno]

Very informative and clever way of explalining the part that atoms are made of. I've been reading a book about particles and was getting lost with the information, but now i have a better understanding of it.

[markklein]

Iron, aluminum and linoleum. The building blocks of everything.

[andrewsparkinson]

Im certain i understand the uncertainty principle now, thank you, your explanations are enlightening. :)

[anteconfig]

I care. I really want to know what we are made of for the sake of knowing.

[burtonbinger]

What kind of difference do you find when the source material (ion proton) gold, iron, neon etc is used in the excellrater . We now believe that all, ions, protons, and neutrons my be different, or may act differently. What is the real answer?

[umakrishnan]

That was a great lecture Thanks a lot. I have a doubt about protons and neutrons which are present at the centre of the atom. What is the counter force of gravity which maintains the proton and neutron at the centre of the atom and not at the bottom of the atom?

[jamest.]

Earth, wind, firewater! I haven't heard it like that before, firewater ha-ha

[YEAHEHEH]

Is there any way to video record the experiments? I understand it is too fast. but is there any research going on for that? It might help a lot,

[hophazz]

Aristotle didn't think fire, water, air and earth were elements, the elements - he thought - were matter (hyle) and form (eidos), these two form substance, and fire, water, air and earth were something Aristotle used explaining change in world under the moon. Air, water, fire and earth are composed by substance.

[ryarbrough]

20:30 That's far too long to wait.

[dragancosic]

Neutron is not atom but acording to atomic mass where should it be on periodic table, before Hidrogen or between Hidrogen and Helium?

[RonJohn]

Why doesn't the Jefferson Lab have a .gov address?

[commonsense]

I made a proton with the building blocks and OMG, please tell me. Are there two types of protons?

[gregurbanek]

You seem to get flustered and nervous when truth is involved. Is it a difficult topic?

[passedhighschoolphysics]

Nice lecture.... Arrrm, at the end he's mixing up ionizing radiation with non-ionizing radiation.

[RonanPrestonMusic]

I don't know what this lecture is about?