full transcript
From the Ted Talk by Lorin Swint Matthews: The dust bunnies that built our planet
Unscramble the Blue Letters
But before long we reach another set of mysteries. We know from ecienvde found in meoeetrtis that these fluffy dust bnneius eventually get heated, melted and then cooled into solid pellets called chondrules. And we have no idea how or why that happens. Furthermore, once those pellets do form, how do they stick together? The eleotaitrtcsc forces from before are too weak, and small rocks can’t be held together by gravity either. Gravity increases proportionally to the mass of the objects involved. That’s why you could effortlessly escape an asteroid the size of a small muatnion using just the focre generated by your legs. So if not gravity, then what? Perhaps it’s dust. A fluffy dust rim collected around the outside of the pellets could act like Velcro. There’s evidence for this in meteors, where we find many cndluehros surrounded by a thin rim of very fine material– plssioby condensed dust.
Open Cloze
But before long we reach another set of mysteries. We know from ________ found in __________ that these fluffy dust _______ eventually get heated, melted and then cooled into solid pellets called chondrules. And we have no idea how or why that happens. Furthermore, once those pellets do form, how do they stick together? The _____________ forces from before are too weak, and small rocks can’t be held together by gravity either. Gravity increases proportionally to the mass of the objects involved. That’s why you could effortlessly escape an asteroid the size of a small ________ using just the _____ generated by your legs. So if not gravity, then what? Perhaps it’s dust. A fluffy dust rim collected around the outside of the pellets could act like Velcro. There’s evidence for this in meteors, where we find many __________ surrounded by a thin rim of very fine material– ________ condensed dust.
Solution
- bunnies
- force
- chondrules
- evidence
- mountain
- meteorites
- possibly
- electrostatic
Original Text
But before long we reach another set of mysteries. We know from evidence found in meteorites that these fluffy dust bunnies eventually get heated, melted and then cooled into solid pellets called chondrules. And we have no idea how or why that happens. Furthermore, once those pellets do form, how do they stick together? The electrostatic forces from before are too weak, and small rocks can’t be held together by gravity either. Gravity increases proportionally to the mass of the objects involved. That’s why you could effortlessly escape an asteroid the size of a small mountain using just the force generated by your legs. So if not gravity, then what? Perhaps it’s dust. A fluffy dust rim collected around the outside of the pellets could act like Velcro. There’s evidence for this in meteors, where we find many chondrules surrounded by a thin rim of very fine material– possibly condensed dust.
Frequently Occurring Word Combinations
ngrams of length 2
collocation |
frequency |
dust bunnies |
3 |
van der |
2 |
der waals |
2 |
clusters grow |
2 |
fluffy dust |
2 |
ngrams of length 3
collocation |
frequency |
van der waals |
2 |
Important Words
- act
- asteroid
- bunnies
- called
- chondrules
- collected
- condensed
- cooled
- dust
- effortlessly
- electrostatic
- escape
- eventually
- evidence
- find
- fine
- fluffy
- force
- forces
- form
- generated
- gravity
- heated
- held
- idea
- increases
- involved
- legs
- long
- mass
- melted
- meteorites
- meteors
- mountain
- mysteries
- objects
- pellets
- possibly
- proportionally
- reach
- rim
- rocks
- set
- size
- small
- solid
- stick
- surrounded
- thin
- velcro
- weak