Big History Flashcards
What are some examples of fields of science did alchemy lead to?
Chemistry, Nuclear Physics, Medicine, etc…
What were the goals of Alchemy?
- to find the elixir of life
- to find a substance called the “philosophers stone”
- to discover the relationship of humans to the cosmos
What is the definition of a planet?
An astronomical body that has an elliptical orbit around a star, a rounded body due to its own gravity, and the ability to clear its area of orbit because it is the largest body in the area.
When was the origin of life?
about 3.8 BYA
How old was Darwin when he set sail on the Beagle?
22 years old
Who was Robert FitzRoy?
He was the Captain of the Beagle.
The Hershey-Chase Experiment was done with what?
a whirring blender from sears
Define Evolution:
a change in allele frequencies in a population over time
Define Natural Selection:
the differential reproductive success of individuals based on variations on heritable traits favored by the environment.
How long ago were beast of burden domesticated?
8,000 years ago (ish)
MOST IMPORTANT DATE TO KNOW IS:
150,000 years ago because thats when dogs came about.
How long ago did did chickens come into the picture?
10,000 years ago
What is the life cycle of a high mass star?
giant/super giant
supernova
then to either a black hole or a neutron star
What is the life cycle of a low mass star?
red giant
planetary nebula
white dwarf
black dwarf
Define Specialists
an organism w/ a specific niche
Define Generalists
an organism w/o a specific niche
Define Stereoscopic Vison
3D vision
Define Brachiation
(N) the act of swinging from branch to branch with arms
0.00000000000000000000000000000000000000001 (that’s right, I counted) seconds after the big bang happened, the universe was the size of a _____.
a grapefruit
When did the first quark come about?
1 quadrillionth of a second after the BB.
After a ____th of a second, the universe had cooled enough to let quarks combine with each other to form protons and neutrons.
a billionth
After one ____th of a second, leptons (such as electrons) came into being.
thousandth
It wasn’t until ______ after the big bang that hydrogen and helium nuclei were cool enough to capture electrons.
377 thousand years
When do we see the first stars?
200 million years after the big bang
What were the goldilocks conditions for Stars to light up?
1) Lots of matter
2) Gravity
3) Tiny differences in the distributions of matter
When did fungi come into the scene?
1000 million years ago
