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Earth Alert!
Earth Alert!

Chapter II

Cover illustration for Earth Alert!
Context Illustration Reading 1/2 · 5 lines
English subtitles · tap any word to listen 1 / 5
Out beyond the orbit of the moon there was a huge, wheel-shaped space station.
Its rapid spin pressed the equivalent of one Earth gravity against its broad, thick rim.
Once when the distortion field failed, the Mt. Palomar telescope tracked it for the better part of an hour, but earth astronomers attributed the track either to an irregularity in the photographic plate or to some peculiarity in the atmosphere.
Near the hub where the gravity was weak, the nine aliens lived; in the two rim compartments lived the mutants.
There were almost a thousand of the latter--both male and female--in the larger compartment; and fewer than thirty--all male--in the smaller one.
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AI-generated narration by OpenAI · Slow US English
LEARNER DICTIONARY
Archivist
/ˈɑːrkɪvɪst/
Editorial verification pending

A keeper or guardian of historical records and memories.

Earth Alert!

Chapter II

Reading 1/2 · 5 reading units · Lines 1–5

Line 1
Out beyond the orbit of the moon there was a huge, wheel-shaped space station.
Line 2
Its rapid spin pressed the equivalent of one Earth gravity against its broad, thick rim.
Line 3
Once when the distortion field failed, the Mt. Palomar telescope tracked it for the better part of an hour, but earth astronomers attributed the track either to an irregularity in the photographic plate or to some peculiarity in the atmosphere.
Line 4
Near the hub where the gravity was weak, the nine aliens lived; in the two rim compartments lived the mutants.
Line 5
There were almost a thousand of the latter--both male and female--in the larger compartment; and fewer than thirty--all male--in the smaller one.

Learner Dictionary

Oxford-style entry order: headword, part of speech, US IPA, concise definition, contextual example, audio, and collocations from this reading.

Against preposition US /əˈɡenst/

touching and pressing; in opposition to

From this reading “Its rapid spin pressed the equivalent of one Earth gravity against its broad, thick rim.”

Beyond preposition US /bɪˈɑːnd/

on the far side of; further than

From this reading “Out beyond the orbit of the moon there was a huge, wheel-shaped space station.”

Either determiner US /ˈiːðər/

one or the other of two

From this reading “Once when the distortion field failed, the Mt. Palomar telescope tracked it for the better part of an hour, but earth astronomers attributed the track either to an irregularity in the photographic plate or to some peculiarity in the atmosphere.”

Once noun US /once/

an important story-specific word used in this passage

From this reading “Once when the distortion field failed, the Mt. Palomar telescope tracked it for the better part of an hour, but earth astronomers attributed the track either to an irregularity in the photographic plate or to some peculiarity in the atmosphere.”

One pronoun US /wʌn/

used to mean any person in general, including the speaker

From this reading “Its rapid spin pressed the equivalent of one Earth gravity against its broad, thick rim.”

Part noun US /part/

an important story-specific word used in this passage

From this reading “Once when the distortion field failed, the Mt. Palomar telescope tracked it for the better part of an hour, but earth astronomers attributed the track either to an irregularity in the photographic plate or to some peculiarity in the atmosphere.”

Track noun US /træk/

a route or signs showing the way someone went

From this reading “Once when the distortion field failed, the Mt. Palomar telescope tracked it for the better part of an hour, but earth astronomers attributed the track either to an irregularity in the photographic plate or to some peculiarity in the atmosphere.”

All words in this reading · 79

Every word is available to listen to. Dictionary details are shown only when verified; these are not licensed Oxford entries.

adeterminerUS /ə/

used before a singular noun to mean one of a group, when it is not a particular one

From this reading Out beyond the orbit of the moon there was a huge, wheel-shaped space station.

againstprepositionUS /əˈɡenst/

touching and pressing; in opposition to

From this reading Its rapid spin pressed the equivalent of one Earth gravity against its broad, thick rim.

aliens

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Near the hub where the gravity was weak, the nine aliens lived; in the two rim compartments lived the mutants.

all

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading There were almost a thousand of the latter--both male and female--in the larger compartment; and fewer than thirty--all male--in the smaller one.

almost

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading There were almost a thousand of the latter--both male and female--in the larger compartment; and fewer than thirty--all male--in the smaller one.

andeterminerUS /æn/

the form of “a” used before a word that begins with a vowel sound

From this reading Once when the distortion field failed, the Mt. Palomar telescope tracked it for the better part of an hour, but earth astronomers attributed the track either to an irregularity in the photographic plate or to some peculiarity in the atmosphere.

andconjunctionUS /ənd/

used to join words or parts of a sentence that go together

From this reading There were almost a thousand of the latter--both male and female--in the larger compartment; and fewer than thirty--all male--in the smaller one.

astronomers

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Once when the distortion field failed, the Mt. Palomar telescope tracked it for the better part of an hour, but earth astronomers attributed the track either to an irregularity in the photographic plate or to some peculiarity in the atmosphere.

atmosphere

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Once when the distortion field failed, the Mt. Palomar telescope tracked it for the better part of an hour, but earth astronomers attributed the track either to an irregularity in the photographic plate or to some peculiarity in the atmosphere.

attributed

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Once when the distortion field failed, the Mt. Palomar telescope tracked it for the better part of an hour, but earth astronomers attributed the track either to an irregularity in the photographic plate or to some peculiarity in the atmosphere.

better

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Once when the distortion field failed, the Mt. Palomar telescope tracked it for the better part of an hour, but earth astronomers attributed the track either to an irregularity in the photographic plate or to some peculiarity in the atmosphere.

beyondprepositionUS /bɪˈɑːnd/

on the far side of; further than

From this reading Out beyond the orbit of the moon there was a huge, wheel-shaped space station.

bothdeterminerUS /boʊθ/

the two together, not just one

From this reading There were almost a thousand of the latter--both male and female--in the larger compartment; and fewer than thirty--all male--in the smaller one.

broad

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Its rapid spin pressed the equivalent of one Earth gravity against its broad, thick rim.

butconjunctionUS /bʌt/

used to introduce something that contrasts with what came before

From this reading Once when the distortion field failed, the Mt. Palomar telescope tracked it for the better part of an hour, but earth astronomers attributed the track either to an irregularity in the photographic plate or to some peculiarity in the atmosphere.

compartment

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading There were almost a thousand of the latter--both male and female--in the larger compartment; and fewer than thirty--all male--in the smaller one.

compartments

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Near the hub where the gravity was weak, the nine aliens lived; in the two rim compartments lived the mutants.

distortion

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Once when the distortion field failed, the Mt. Palomar telescope tracked it for the better part of an hour, but earth astronomers attributed the track either to an irregularity in the photographic plate or to some peculiarity in the atmosphere.

Earth

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Its rapid spin pressed the equivalent of one Earth gravity against its broad, thick rim.

eitherdeterminerUS /ˈiːðər/

one or the other of two

From this reading Once when the distortion field failed, the Mt. Palomar telescope tracked it for the better part of an hour, but earth astronomers attributed the track either to an irregularity in the photographic plate or to some peculiarity in the atmosphere.

equivalent

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Its rapid spin pressed the equivalent of one Earth gravity against its broad, thick rim.

failed

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Once when the distortion field failed, the Mt. Palomar telescope tracked it for the better part of an hour, but earth astronomers attributed the track either to an irregularity in the photographic plate or to some peculiarity in the atmosphere.

female

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading There were almost a thousand of the latter--both male and female--in the larger compartment; and fewer than thirty--all male--in the smaller one.

fewer

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading There were almost a thousand of the latter--both male and female--in the larger compartment; and fewer than thirty--all male--in the smaller one.

field

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Once when the distortion field failed, the Mt. Palomar telescope tracked it for the better part of an hour, but earth astronomers attributed the track either to an irregularity in the photographic plate or to some peculiarity in the atmosphere.

forprepositionUS /fɔːr/

intended to be given to, or used by, somebody

From this reading Once when the distortion field failed, the Mt. Palomar telescope tracked it for the better part of an hour, but earth astronomers attributed the track either to an irregularity in the photographic plate or to some peculiarity in the atmosphere.

gravity

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Its rapid spin pressed the equivalent of one Earth gravity against its broad, thick rim.

hour

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Once when the distortion field failed, the Mt. Palomar telescope tracked it for the better part of an hour, but earth astronomers attributed the track either to an irregularity in the photographic plate or to some peculiarity in the atmosphere.

hub

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Near the hub where the gravity was weak, the nine aliens lived; in the two rim compartments lived the mutants.

huge

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Out beyond the orbit of the moon there was a huge, wheel-shaped space station.

inprepositionUS /ɪn/

inside something, or within a place, period, or state

From this reading Once when the distortion field failed, the Mt. Palomar telescope tracked it for the better part of an hour, but earth astronomers attributed the track either to an irregularity in the photographic plate or to some peculiarity in the atmosphere.

irregularity

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Once when the distortion field failed, the Mt. Palomar telescope tracked it for the better part of an hour, but earth astronomers attributed the track either to an irregularity in the photographic plate or to some peculiarity in the atmosphere.

itpronounUS /ɪt/

a thing, animal, or idea already mentioned

From this reading Once when the distortion field failed, the Mt. Palomar telescope tracked it for the better part of an hour, but earth astronomers attributed the track either to an irregularity in the photographic plate or to some peculiarity in the atmosphere.

ItsdeterminerUS /ɪts/

belonging to the thing or animal already mentioned

From this reading Its rapid spin pressed the equivalent of one Earth gravity against its broad, thick rim.

larger

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading There were almost a thousand of the latter--both male and female--in the larger compartment; and fewer than thirty--all male--in the smaller one.

latter

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading There were almost a thousand of the latter--both male and female--in the larger compartment; and fewer than thirty--all male--in the smaller one.

lived

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Near the hub where the gravity was weak, the nine aliens lived; in the two rim compartments lived the mutants.

male

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading There were almost a thousand of the latter--both male and female--in the larger compartment; and fewer than thirty--all male--in the smaller one.

moon

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Out beyond the orbit of the moon there was a huge, wheel-shaped space station.

Mt

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Once when the distortion field failed, the Mt. Palomar telescope tracked it for the better part of an hour, but earth astronomers attributed the track either to an irregularity in the photographic plate or to some peculiarity in the atmosphere.

mutants

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Near the hub where the gravity was weak, the nine aliens lived; in the two rim compartments lived the mutants.

Near

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Near the hub where the gravity was weak, the nine aliens lived; in the two rim compartments lived the mutants.

nine

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Near the hub where the gravity was weak, the nine aliens lived; in the two rim compartments lived the mutants.

ofprepositionUS /ʌv/

belonging to, or connected with, somebody or something

From this reading Out beyond the orbit of the moon there was a huge, wheel-shaped space station.

Once

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Once when the distortion field failed, the Mt. Palomar telescope tracked it for the better part of an hour, but earth astronomers attributed the track either to an irregularity in the photographic plate or to some peculiarity in the atmosphere.

onepronounUS /wʌn/

used to mean any person in general, including the speaker

From this reading Its rapid spin pressed the equivalent of one Earth gravity against its broad, thick rim.

orconjunctionUS /ɔːr/

used to join alternatives or possibilities

From this reading Once when the distortion field failed, the Mt. Palomar telescope tracked it for the better part of an hour, but earth astronomers attributed the track either to an irregularity in the photographic plate or to some peculiarity in the atmosphere.

orbit

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Out beyond the orbit of the moon there was a huge, wheel-shaped space station.

Out

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Out beyond the orbit of the moon there was a huge, wheel-shaped space station.

Palomar

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Once when the distortion field failed, the Mt. Palomar telescope tracked it for the better part of an hour, but earth astronomers attributed the track either to an irregularity in the photographic plate or to some peculiarity in the atmosphere.

partnounUS /part/

an important story-specific word used in this passage

From this reading Once when the distortion field failed, the Mt. Palomar telescope tracked it for the better part of an hour, but earth astronomers attributed the track either to an irregularity in the photographic plate or to some peculiarity in the atmosphere.

peculiarity

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Once when the distortion field failed, the Mt. Palomar telescope tracked it for the better part of an hour, but earth astronomers attributed the track either to an irregularity in the photographic plate or to some peculiarity in the atmosphere.

photographic

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Once when the distortion field failed, the Mt. Palomar telescope tracked it for the better part of an hour, but earth astronomers attributed the track either to an irregularity in the photographic plate or to some peculiarity in the atmosphere.

plate

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Once when the distortion field failed, the Mt. Palomar telescope tracked it for the better part of an hour, but earth astronomers attributed the track either to an irregularity in the photographic plate or to some peculiarity in the atmosphere.

pressed

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Its rapid spin pressed the equivalent of one Earth gravity against its broad, thick rim.

rapid

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Its rapid spin pressed the equivalent of one Earth gravity against its broad, thick rim.

rim

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Its rapid spin pressed the equivalent of one Earth gravity against its broad, thick rim.

smaller

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading There were almost a thousand of the latter--both male and female--in the larger compartment; and fewer than thirty--all male--in the smaller one.

some

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Once when the distortion field failed, the Mt. Palomar telescope tracked it for the better part of an hour, but earth astronomers attributed the track either to an irregularity in the photographic plate or to some peculiarity in the atmosphere.

space

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Out beyond the orbit of the moon there was a huge, wheel-shaped space station.

spin

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Its rapid spin pressed the equivalent of one Earth gravity against its broad, thick rim.

station

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Out beyond the orbit of the moon there was a huge, wheel-shaped space station.

telescope

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Once when the distortion field failed, the Mt. Palomar telescope tracked it for the better part of an hour, but earth astronomers attributed the track either to an irregularity in the photographic plate or to some peculiarity in the atmosphere.

thanconjunctionUS /ðæn/

used to introduce the second part of a comparison

From this reading There were almost a thousand of the latter--both male and female--in the larger compartment; and fewer than thirty--all male--in the smaller one.

thedeterminerUS /ðə/

used before a noun that is already known, already mentioned, or the only one of its kind

From this reading Out beyond the orbit of the moon there was a huge, wheel-shaped space station.

there

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Out beyond the orbit of the moon there was a huge, wheel-shaped space station.

thick

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Its rapid spin pressed the equivalent of one Earth gravity against its broad, thick rim.

thirty

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading There were almost a thousand of the latter--both male and female--in the larger compartment; and fewer than thirty--all male--in the smaller one.

thousand

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading There were almost a thousand of the latter--both male and female--in the larger compartment; and fewer than thirty--all male--in the smaller one.

toparticleUS /tuː/

used before the base form of a verb to make the infinitive

From this reading Once when the distortion field failed, the Mt. Palomar telescope tracked it for the better part of an hour, but earth astronomers attributed the track either to an irregularity in the photographic plate or to some peculiarity in the atmosphere.

tracknounUS /træk/

a route or signs showing the way someone went

From this reading Once when the distortion field failed, the Mt. Palomar telescope tracked it for the better part of an hour, but earth astronomers attributed the track either to an irregularity in the photographic plate or to some peculiarity in the atmosphere.

tracked

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Once when the distortion field failed, the Mt. Palomar telescope tracked it for the better part of an hour, but earth astronomers attributed the track either to an irregularity in the photographic plate or to some peculiarity in the atmosphere.

two

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Near the hub where the gravity was weak, the nine aliens lived; in the two rim compartments lived the mutants.

wasauxiliary verbUS /wɑːz/

the past form of “be” used with I, he, she, it, or a singular noun

From this reading Out beyond the orbit of the moon there was a huge, wheel-shaped space station.

weak

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Near the hub where the gravity was weak, the nine aliens lived; in the two rim compartments lived the mutants.

wereauxiliary verbUS /wɜːr/

the past form of “be” used with you, we, they, or a plural noun

From this reading There were almost a thousand of the latter--both male and female--in the larger compartment; and fewer than thirty--all male--in the smaller one.

wheel-shaped

Dictionary entry pending editorial verification. Tap Listen to hear the word.

From this reading Out beyond the orbit of the moon there was a huge, wheel-shaped space station.

whenconjunctionUS /wen/

at the time that

From this reading Once when the distortion field failed, the Mt. Palomar telescope tracked it for the better part of an hour, but earth astronomers attributed the track either to an irregularity in the photographic plate or to some peculiarity in the atmosphere.

whereconjunctionUS /wer/

in or at the place that

From this reading Near the hub where the gravity was weak, the nine aliens lived; in the two rim compartments lived the mutants.