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Stand by for Mars!
Stand by for Mars!

Chapter XV · Chapter 15

Chapter 15 of Stand by for Mars! is here in full — 232 sentences across 47 reading sections, with audio for every sentence and word.

Cover illustration for Stand by for Mars!
Context Illustration Reading 1/46 · 5 lines
English subtitles · tap any word to listen 1 / 5
"What's the reading on the Geiger counter now?" asked Tom.
Roger looked down at the face of the radioactive measuring device and answered, "She's been dropping for the last five minutes, Tom.
Looks like the mass in number three is cooling off.
Fourteen hundred and ten now."
"That's not fast enough," said Astro, straightening up from tightening a nut on the lead baffle.
0:00 / 0:00
Speed 0.75x
AI-generated narration by OpenAI · Slow US English
LEARNER DICTIONARY
Archivist
/ˈɑːrkɪvɪst/
Editorial verification pending

A keeper or guardian of historical records and memories.

Stand by for Mars!

Chapter XV · Chapter 15

Chapter 15 of Stand by for Mars! is here in full — 232 sentences across 47 reading sections, with audio for every sentence and word.

Reading 1/46 · 5 reading units · Lines 1–5

Line 1
"What's the reading on the Geiger counter now?" asked Tom.
Line 2
Roger looked down at the face of the radioactive measuring device and answered, "She's been dropping for the last five minutes, Tom.
Line 3
Looks like the mass in number three is cooling off.
/lʊks laɪk ðə mæs ɪn ˈnʌmbər θriː ɪz ˈkuːlɪŋ ɔːf/
Line 4
Fourteen hundred and ten now."
/ˈfɔːrˈtiːn ˈhʌndrəd ənd ten naʊ/
Line 5
"That's not fast enough," said Astro, straightening up from tightening a nut on the lead baffle.

Learner Dictionary

These definitions explain words found in the current reading and keep every example grounded in its original sentence.

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

baffle verb US /ˈbæfəl/

be a mystery or bewildering to

From this reading “"That's not fast enough," said Astro, straightening up from tightening a nut on the lead baffle.”

cooling noun US /ˈkuːlɪŋ/

the process of becoming cooler; a falling temperature

From this reading “Looks like the mass in number three is cooling off.”

Geiger noun US /ˈɡaɪɡər/

German physicist who developed the Geiger counter (1882-1945)

From this reading “"What's the reading on the Geiger counter now?" asked Tom.”

measuring noun US /ˈmeʒərɪŋ/

the act or process of assigning numbers to phenomena according to a rule

From this reading “Roger looked down at the face of the radioactive measuring device and answered, "She's been dropping for the last five minutes, Tom.”

nut noun US /nʌt/

usually large hard-shelled seed

From this reading “"That's not fast enough," said Astro, straightening up from tightening a nut on the lead baffle.”

radioactive adjective US /ˌreɪdioʊˈæktɪv/

exhibiting or caused by radioactivity

From this reading “Roger looked down at the face of the radioactive measuring device and answered, "She's been dropping for the last five minutes, Tom.”

straightening verb US /ˈstreɪtənɪŋ/

-ing form of “straighten” — straighten up or out; make straight

From this reading “"That's not fast enough," said Astro, straightening up from tightening a nut on the lead baffle.”

tightening noun US /ˈtaɪtənɪŋ/

the act of making something tighter

From this reading “"That's not fast enough," said Astro, straightening up from tightening a nut on the lead baffle.”

All words in this reading · 53

Every word in these five lines is listed here, and every one of them can be played on its own.

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 "That's not fast enough," said Astro, straightening up from tightening a nut on the lead baffle.

andconjunctionUS /ənd/

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

From this reading Roger looked down at the face of the radioactive measuring device and answered, "She's been dropping for the last five minutes, Tom.

answeredverbUS /ˈænsərd/

past form of “answer” — react verbally

From this reading Roger looked down at the face of the radioactive measuring device and answered, "She's been dropping for the last five minutes, Tom.

askedverbUS /æskt/

past form of “ask” — make a request or demand for something to somebody

From this reading "What's the reading on the Geiger counter now?" asked Tom.

Astro

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

From this reading "That's not fast enough," said Astro, straightening up from tightening a nut on the lead baffle.

atprepositionUS /æt/

in or near a particular place or position

From this reading Roger looked down at the face of the radioactive measuring device and answered, "She's been dropping for the last five minutes, Tom.

baffleverbUS /ˈbæfəl/

be a mystery or bewildering to

From this reading "That's not fast enough," said Astro, straightening up from tightening a nut on the lead baffle.

beenauxiliary verbUS /bɪn/

the past participle of “be”

From this reading Roger looked down at the face of the radioactive measuring device and answered, "She's been dropping for the last five minutes, Tom.

coolingnounUS /ˈkuːlɪŋ/

the process of becoming cooler; a falling temperature

From this reading Looks like the mass in number three is cooling off.

counternounUS /ˈkaʊntər/

table consisting of a horizontal surface over which business is transacted

From this reading "What's the reading on the Geiger counter now?" asked Tom.

devicenounUS /dɪˈvaɪs/

an instrumentality invented for a particular purpose

From this reading Roger looked down at the face of the radioactive measuring device and answered, "She's been dropping for the last five minutes, Tom.

downadjectiveUS /daʊn/

being or moving lower in position or less in some value

From this reading Roger looked down at the face of the radioactive measuring device and answered, "She's been dropping for the last five minutes, Tom.

droppingadjectiveUS /ˈdrɑːpɪŋ/

coming down freely under the influence of gravity

From this reading Roger looked down at the face of the radioactive measuring device and answered, "She's been dropping for the last five minutes, Tom.

enoughnounUS /ɪˈnʌf/

an adequate quantity; a quantity that is large enough to achieve a purpose

From this reading "That's not fast enough," said Astro, straightening up from tightening a nut on the lead baffle.

facenounUS /feɪs/

the front of the human head from the forehead to the chin and ear to ear

From this reading Roger looked down at the face of the radioactive measuring device and answered, "She's been dropping for the last five minutes, Tom.

fastadverbUS /fæst/

quickly or rapidly (often used as a combining form)

From this reading "That's not fast enough," said Astro, straightening up from tightening a nut on the lead baffle.

fivenounUS /faɪv/

the cardinal number that is the sum of four and one

From this reading Roger looked down at the face of the radioactive measuring device and answered, "She's been dropping for the last five minutes, Tom.

forprepositionUS /fɔːr/

intended to be given to, or used by, somebody

From this reading Roger looked down at the face of the radioactive measuring device and answered, "She's been dropping for the last five minutes, Tom.

FourteennounUS /ˈfɔːrˈtiːn/

the cardinal number that is the sum of thirteen and one

From this reading Fourteen hundred and ten now."

fromprepositionUS /frʌm/

showing where something starts, or who sent it

From this reading "That's not fast enough," said Astro, straightening up from tightening a nut on the lead baffle.

GeigernounUS /ˈɡaɪɡər/

German physicist who developed the Geiger counter (1882-1945)

From this reading "What's the reading on the Geiger counter now?" asked Tom.

hundrednounUS /ˈhʌndrəd/

ten 10s

From this reading Fourteen hundred and ten now."

inprepositionUS /ɪn/

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

From this reading Looks like the mass in number three is cooling off.

isauxiliary verbUS /ɪz/

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

From this reading Looks like the mass in number three is cooling off.

lastadjectiveUS /læst/

immediately past

From this reading Roger looked down at the face of the radioactive measuring device and answered, "She's been dropping for the last five minutes, Tom.

leadverbUS /led/

take somebody somewhere

From this reading "That's not fast enough," said Astro, straightening up from tightening a nut on the lead baffle.

likeverbUS /laɪk/

prefer or wish to do something

From this reading Looks like the mass in number three is cooling off.

lookedverbUS /lʊkt/

past form of “look” — perceive with attention; direct one's gaze towards

From this reading Roger looked down at the face of the radioactive measuring device and answered, "She's been dropping for the last five minutes, Tom.

LooksnounUS /lʊks/

plural of “look” — the feelings expressed on a person's face

From this reading Looks like the mass in number three is cooling off.

massnounUS /mæs/

the property of a body that causes it to have weight in a gravitational field

From this reading Looks like the mass in number three is cooling off.

measuringnounUS /ˈmeʒərɪŋ/

the act or process of assigning numbers to phenomena according to a rule

From this reading Roger looked down at the face of the radioactive measuring device and answered, "She's been dropping for the last five minutes, Tom.

minutesnounUS /ˈmɪnəts/

a written account of what transpired at a meeting

From this reading Roger looked down at the face of the radioactive measuring device and answered, "She's been dropping for the last five minutes, Tom.

notadverbUS /nɑːt/

used to make a word, phrase, or sentence negative

From this reading "That's not fast enough," said Astro, straightening up from tightening a nut on the lead baffle.

nowadverbUS /naʊ/

in the historical present; at this point in the narration of a series of past events

From this reading "What's the reading on the Geiger counter now?" asked Tom.

numbernounUS /ˈnʌmbər/

the property possessed by a sum or total or indefinite quantity of units or individuals

From this reading Looks like the mass in number three is cooling off.

nutnounUS /nʌt/

usually large hard-shelled seed

From this reading "That's not fast enough," said Astro, straightening up from tightening a nut on the lead baffle.

ofprepositionUS /ʌv/

belonging to, or connected with, somebody or something

From this reading Roger looked down at the face of the radioactive measuring device and answered, "She's been dropping for the last five minutes, Tom.

offadverbUS /ɔːf/

from a particular thing or place or position (“forth” is obsolete)

From this reading Looks like the mass in number three is cooling off.

onprepositionUS /ɑːn/

touching and supported by a surface

From this reading "What's the reading on the Geiger counter now?" asked Tom.

radioactiveadjectiveUS /ˌreɪdioʊˈæktɪv/

exhibiting or caused by radioactivity

From this reading Roger looked down at the face of the radioactive measuring device and answered, "She's been dropping for the last five minutes, Tom.

readingnounUS /ˈriːdɪŋ/

the cognitive process of understanding a written linguistic message

From this reading "What's the reading on the Geiger counter now?" asked Tom.

Roger

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

From this reading Roger looked down at the face of the radioactive measuring device and answered, "She's been dropping for the last five minutes, Tom.

saidadjectiveUS /sed/

being the one previously mentioned or spoken of

From this reading "That's not fast enough," said Astro, straightening up from tightening a nut on the lead baffle.

She's

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

From this reading Roger looked down at the face of the radioactive measuring device and answered, "She's been dropping for the last five minutes, Tom.

straighteningverbUS /ˈstreɪtənɪŋ/

-ing form of “straighten” — straighten up or out; make straight

From this reading "That's not fast enough," said Astro, straightening up from tightening a nut on the lead baffle.

tennounUS /ten/

the cardinal number that is the sum of nine and one; the base of the decimal system

From this reading Fourteen hundred and ten now."

That's

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

From this reading "That's not fast enough," said Astro, straightening up from tightening a nut on the lead baffle.

thedeterminerUS /ðə/

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

From this reading "What's the reading on the Geiger counter now?" asked Tom.

threenounUS /θriː/

the cardinal number that is the sum of one and one and one

From this reading Looks like the mass in number three is cooling off.

tighteningnounUS /ˈtaɪtənɪŋ/

the act of making something tighter

From this reading "That's not fast enough," said Astro, straightening up from tightening a nut on the lead baffle.

TomnounUS /tɑːm/

male cat

From this reading "What's the reading on the Geiger counter now?" asked Tom.

upadjectiveUS /ʌp/

being or moving higher in position or greater in some value; being above a former position or level

From this reading "That's not fast enough," said Astro, straightening up from tightening a nut on the lead baffle.

What's

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

From this reading "What's the reading on the Geiger counter now?" asked Tom.

Chapter 15 of Stand by for Mars! by Carey Rockwell holds 232 sentences, grouped into 47 reading sections of at most 5 sentences. The text is the source edition, unabridged, and the chapter records which sentences cover which part of the work so that nothing is dropped. Every word can be tapped for its pronunciation and dictionary entry.

What does chapter 15 of Stand by for Mars! contain?

Chapter 15 holds 232 sentences of Stand by for Mars!, unabridged, divided into 47 reading sections.

This page carries chapter 15 of Stand by for Mars! by Carey Rockwell exactly as it stands in the source edition, without abridgement. It runs to 232 sentences, grouped into 47 sections of at most 5 sentences so that a reader can take the chapter in steady, finishable pieces. The chapter also stores a coverage record mapping every one of its sentences to a part of the work, which is how the edition demonstrates that no line was dropped.

How do I study chapter 15 of Stand by for Mars!?

Work through the 47 sections in order, replaying any sentence and tapping unfamiliar words for their entries.

Each of the 47 sections in this chapter is short enough to read once, hear once, and then re-read with the vocabulary in view. Tapping a word plays it alone and opens its dictionary entry with IPA, part of speech and meaning, so the reader is never forced to guess a pronunciation from spelling. Working section by section keeps a long chapter from becoming an undifferentiated wall of text, which is the usual reason a reader abandons a work of this period.

Can chapter 15 be read aloud to me?

Yes — every sentence and every individual word in chapter 15 can be played aloud in United States English.

Audio covers the whole chapter: any sentence can be played, and any single word within it can be played on its own. The voice uses United States English. For a work of this period that matters, because spelling is an unreliable guide to pronunciation for vocabulary that has fallen out of daily use, and a learner who guesses wrong tends to keep the error. Hearing the word in its own sentence, and then alone, settles it.

Questions about reading Stand by for Mars!

Common questions about reading Stand by for Mars! by Carey Rockwell on this page, its source edition and its audio.

Is this the complete text of Stand by for Mars!?

Yes. All 4777 sentences of Project Gutenberg eBook #19526 are kept, with a record of which sentences cover which part.

Which edition of Stand by for Mars! is used?

Project Gutenberg eBook #19526, unabridged. The Project Gutenberg header, footer and licence are removed.

How long does Stand by for Mars! take to read?

About 398 minutes of reading across 956 sections of 5 sentences each, at an unhurried pace.

How to read Stand by for Mars! section by section

How to work through Stand by for Mars! section by section, using the audio and the tap-to-define vocabulary.

  1. Open a chapter

    Choose one of the 22 chapters of Stand by for Mars! to begin.

  2. Read one section

    Each section holds 5 sentences; read it once through.

  3. Listen and tap

    Play the section aloud, then tap any unfamiliar word for its entry.

Vocabulary met early in Stand by for Mars!

Words and structures a reader meets early in Stand by for Mars!, each tappable for pronunciation and meaning.

Stand
A word that appears in the opening chapter of Stand by for Mars!; the reader can tap it to hear it and see its dictionary entry.
Corbett
A word that appears in the opening chapter of Stand by for Mars!; the reader can tap it to hear it and see its dictionary entry.
Space
A word that appears in the opening chapter of Stand by for Mars!; the reader can tap it to hear it and see its dictionary entry.
Cadet
A word that appears in the opening chapter of Stand by for Mars!; the reader can tap it to hear it and see its dictionary entry.