What Dinosaurs, Pyramids, and the Atomic Bomb Have in Common
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Subtítulos (178 segments)
DownloadSometimes, being an expert in one
scientific field does not translate to another.
The ability to design a nuclear reactor doesn’t make you qualified to
dish out health advice… unless that advice is to avoid eating uranium.
But if you’re particularly clever, you might find yourself
making headlines for discoveries in multiple scientific fields.
And today, we’re going to talk about one such scientist:
a particle physicist named Luis Alvarez,
who investigated everything from atomic bombs,
to Egyptian pyramids, to what actually killed the dinosaurs.
[♪INTRO]
Luis Alvarez was born in 1911, which put him in a great
position to contribute to the newfangled field of particle physics.
For example, that was the same year that Ernest Rutherford
proposed an updated concept of an atom,
where most of its mass is concentrated in a small, compact nucleus.
But it was also two decades before we knew that nuclei
didn’t just have protons in them, but neutrons, too.
Full subtitles available in the video player
Key Vocabulary (15)
Used to refer to the person or people that the speaker is addressing. It is the second-person pronoun used for both singular and plural subjects and objects.
Relating to the energy released when the center of an atom is divided or joined. It can also describe a basic social unit consisting of parents and their children.
labor
"I work hard."
A style of popular music that emerged in the 1950s, characterized by a strong beat and the use of electric guitars, bass, and drums. It is often loud and energetic, encompassing various sub-genres from soft to heavy sounds.
Grammar in This Video
"You probably remember from history class… or the movie Oppenheimer…"
"You probably remember from history class… or the movie Oppenheimer… that the U.S..."
"Alvarez got a PhD in physics from the University of Chicago before heading to UC..."
"Luis Alvarez was born in 1911, which put him in a great position to contribute t..."
"before we knew that nuclei didn’t just have protons"
"where most of its mass is concentrated"
"one lump of uranium gets shot down a barrel super fast into another lump of uran..."
"Heading to UC Berkeley’s Radiation Laboratory"
"unless that advice is to avoid eating uranium"
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