Term
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Definition
| uses lenses to gather light |
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Term
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Definition
| uses mirrors to gather light |
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Term
•
Gather light
Resolve fine detail
Magnify |
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Definition
Three main functions of
a telescope |
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Term
| dimmer image, less detail |
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Definition
| small diameter objective lens cause |
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Term
| brighter image, more detail |
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Definition
| large diameter objective lens cause |
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Term
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Definition
refers to how fine of a
detail you can see |
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Term
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Definition
Increasing the size of your telescope
improves your |
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Term
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Definition
| the smaller the detail, the better your |
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Term
| gather lots of light and see faint (distant)objects; see fine details on a planet or closely spaced stars/galaxies |
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Definition
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Term
diameter
of the primary mirror (or lens) |
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Definition
| Telescope size refers to the |
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Term
Our atmosphere blocks some
electromagnetic radiation |
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Definition
| Why do we put telescopes in crazy locations? |
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Term
The Earth’s atmosphere is turbulent - hot
and cold air is constantly moving around.As light from a star passes through the moving layers, the light “bounces around” on its way to your eye. This bouncing of the light is what makes
the stars twinkle. |
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Definition
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Term
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Definition
hot
and cold air is constantly moving around. |
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Term
•
We can see all wavelengths.
It is very cold in space.
Earth’s atmosphere is turbulent. |
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Definition
Benefits of telescopes
in space |
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Term
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Definition
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Term
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Definition
| a galaxy with an active galactic nucleus |
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Term
| It provides us with light and heat. The Sun is the only star we can study in great detail. |
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Definition
| Why is the Sun Important? |
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Term
| 5 billion more years of fusion |
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Definition
| The sun has enough helium for |
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Term
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Definition
| almost massless particles that don't really interact with anything, thus they escape the sun easily but are very hard to detect. about 6.5 trillion pass through your hand every second |
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Term
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Definition
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Term
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Definition
the sun's surface
very thin |
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Term
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Definition
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Term
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Definition
occurs when charged particles from the
Sun collide with atoms in Earth’s atmosphere. |
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Term
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Definition
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Term
It gets re-radiated in the IR, which is why items left
out in the Sun feel hot. |
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Definition
| What happens to the light that is absorbed? |
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Term
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Definition
| sometimes called stand-by power |
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Term
The good: cheap, reflects sunlight
cools the Earth
The bad: destroys ozone, might work too well |
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Definition
| what is the good and bad in spraying sulfur dioxide into the atmosphere? |
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Term
The good: removes carbon dioxide
The bad: filters might need to be massive, lots of energy to clean CO2 from filters; could require clearing land and more CO2 produced that removed |
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Definition
what is the good and bad in building giant air filters/fake trees that remove CO?
2 |
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Term
The good: clouds reflect sunlight
might cool the Earth; could be stopped?
The bad: unpredictable at best
might accidentally form severe storms,
water vapor is also a greenhouse gas |
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Definition
| what is the good and bad in putting salt in the air to form clouds? |
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Term
The good: works on small scales
plankton eat CO2
The bad: large plankton blooms can destroy the underwater ecosystem
no fish = bad |
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Definition
| what is the good and bad in using iron powder to grow plankton in the ocean? |
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Term
The good: natural process, harmless
could be used as a building material
The bad: man made version requires energy and mining uses CO2 to remove CO2; mining destroys
land |
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Definition
what is the good and bad in using CO2
to make limestone? |
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Term
The good: block as much or little light as we want.
“remove” screen when we’re done
The bad: very expensive, long timeline
might take millions of small satellites; don’t
know how plants might react |
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Definition
| what is the good and bad in deploying a giant sun screen |
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Term
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Definition
formed through the cooling and
solidification of magma or lava
ex. basalt, obsidian |
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Term
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Definition
formed by the deposition
of material on the Earth’s surface or
within bodies of water
ex. sandstone |
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Term
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Definition
rocks that have
undergone a physical or chemical change
due to tremendous heat and pressure |
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Term
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Definition
the idea that the continents can
move |
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Term
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Definition
very prominent and
visible both above and below water; accurate measurements show the east and west sides are moving apart by 3cm
per year |
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Term
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Definition
Earthquakes occur mostly along boundaries
of |
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Term
|
Definition
result of plates colliding, separating,
moving across each other |
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Term
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Definition
a high viscosity fluid;
can move or flow very slowly; |
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Term
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Definition
| Heat transfers to mantle and causes |
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Term
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Definition
| tectonic plates ‘ride’ on the |
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Term
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Definition
| As the oceanic plate sinks deep under the continental plate, some material heats up, rises and melts the mantle, creating pools of liquid hot magma |
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Term
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Definition
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Term
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Definition
| the big objects in space; also known as minor planets |
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Term
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Definition
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Term
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Definition
| passing through an atmosphere |
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Term
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Definition
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Term
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Definition
| this “dust”, results from constant bombardment by micrometeoroids |
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Term
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Definition
| ripped apart by Jupiter’s gravity and then slammed into Jupiter in 1994 |
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