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The Boy's Playbook of Science
The Boy's Playbook of Science

Chapter XX

Chapter 20 of The Boy's Playbook of Science is here in full — 42 sentences across 9 reading sections, with audio for every sentence and word.

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Context Illustration Reading 1/8 · 5 lines
English subtitles · tap any word to listen 1 / 5
MAGNETO-ELECTRICITY.
The correlation of the physical forces, heat, light, electricity, magnetism, and motion, is one of the most interesting subjects for study that can be suggested to the lover of science.
The examination of the precise meaning of the term correlation, so ably considered by Professor Grove, indicates a necessary mutual or reciprocal dependence of one force on the other.
Thus, electricity will produce heat, and _vice versâ_; motion, such as friction, produces electricity, and the latter, by its attraction and repulsion, establishes itself as a source of motion.
Electricity produces light, also magnetism, and contrariwise light is said to possess [Page 242] the power of magnetizing steel, whilst magnetism again produces light and electricity.
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LEARNER DICTIONARY
Archivist
/ˈɑːrkɪvɪst/
Editorial verification pending

A keeper or guardian of historical records and memories.

The Boy's Playbook of Science

Chapter XX

Chapter 20 of The Boy's Playbook of Science is here in full — 42 sentences across 9 reading sections, with audio for every sentence and word.

Reading 1/8 · 5 reading units · Lines 1–5

Line 1
MAGNETO-ELECTRICITY.
Line 2
The correlation of the physical forces, heat, light, electricity, magnetism, and motion, is one of the most interesting subjects for study that can be suggested to the lover of science.
/ðə ˌkɔːrəˈleɪʃən ʌv ðə ˈfɪzɪkəl ˈfɔːrsɪz hiːt laɪt ɪˌlekˈtrɪsəti ˈmæɡnətɪzəm ənd ˈmoʊʃən ɪz wʌn ʌv ðə moʊst ˈɪntrəstɪŋ ˈsʌbdʒɪkts fɔːr ˈstʌdi ðæt kæn biː səˈdʒestɪd tuː ðə ˈlʌvər ʌv ˈsaɪəns/
Line 3
The examination of the precise meaning of the term correlation, so ably considered by Professor Grove, indicates a necessary mutual or reciprocal dependence of one force on the other.
/ðə ɪɡˌzæməˈneɪʃən ʌv ðə prɪˈsaɪs ˈmiːnɪŋ ʌv ðə tɜːrm ˌkɔːrəˈleɪʃən soʊ ˈeɪbli kənˈsɪdərd baɪ prəˈfesər ɡroʊv ˈɪndɪkeɪts ə ˈnesəseri ˈmjuːtʃuːəl ɔːr rɪˈsɪprəkəl dɪˈpendəns ʌv wʌn fɔːrs ɑːn ðə ˈʌðər/
Line 4
Thus, electricity will produce heat, and _vice versâ_; motion, such as friction, produces electricity, and the latter, by its attraction and repulsion, establishes itself as a source of motion.
Line 5
Electricity produces light, also magnetism, and contrariwise light is said to possess [Page 242] the power of magnetizing steel, whilst magnetism again produces light and electricity.

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.

ably adverb US /ˈeɪbli/

with competence; in a competent capable manner

From this reading “The examination of the precise meaning of the term correlation, so ably considered by Professor Grove, indicates a necessary mutual or reciprocal dependence of one force on the other.”

correlation noun US /ˌkɔːrəˈleɪʃən/

a reciprocal relation between two or more things

From this reading “The correlation of the physical forces, heat, light, electricity, magnetism, and motion, is one of the most interesting subjects for study that can be suggested to the lover of science.”

dependence noun US /dɪˈpendəns/

the state of relying on or being controlled by someone or something else

From this reading “The examination of the precise meaning of the term correlation, so ably considered by Professor Grove, indicates a necessary mutual or reciprocal dependence of one force on the other.”

establishes verb US /ɪˈstæblɪʃɪz/

third-person singular of “establish” — set up or found

From this reading “Thus, electricity will produce heat, and _vice versâ_; motion, such as friction, produces electricity, and the latter, by its attraction and repulsion, establishes itself as a source of motion.”

friction noun US /ˈfrɪkʃən/

a state of conflict between persons

From this reading “Thus, electricity will produce heat, and _vice versâ_; motion, such as friction, produces electricity, and the latter, by its attraction and repulsion, establishes itself as a source of motion.”

indicates verb US /ˈɪndɪkeɪts/

third-person singular of “indicate” — be a signal for or a symptom of

From this reading “The examination of the precise meaning of the term correlation, so ably considered by Professor Grove, indicates a necessary mutual or reciprocal dependence of one force on the other.”

magnetism noun US /ˈmæɡnətɪzəm/

attraction for iron; associated with electric currents as well as magnets; characterized by fields of force

From this reading “The correlation of the physical forces, heat, light, electricity, magnetism, and motion, is one of the most interesting subjects for study that can be suggested to the lover of science.”

reciprocal adjective US /rɪˈsɪprəkəl/

concerning each of two or more persons or things; especially given or done in return

From this reading “The examination of the precise meaning of the term correlation, so ably considered by Professor Grove, indicates a necessary mutual or reciprocal dependence of one force on the other.”

Word partnerships in these lines

English keeps certain words together, and knowing the pair is worth more than knowing each word alone. Every partnership below was counted across our whole published library, and earns its place by appearing far more often than two unrelated words of the same frequency would.

Shown as this reading writes them, with the form the library counts, what kind of pairing it is, and how often it occurs.

most interesting adverb + adjective

In this reading “The correlation of the physical forces, heat, light, electricity, magnetism, and motion, is one of the most interesting subjects for study that can be suggested to the lover of science.”

physical forces adjective + noun counted as “physical force”

In this reading “The correlation of the physical forces, heat, light, electricity, magnetism, and motion, is one of the most interesting subjects for study that can be suggested to the lover of science.”

interesting subjects adjective + noun counted as “interesting subject”

In this reading “The correlation of the physical forces, heat, light, electricity, magnetism, and motion, is one of the most interesting subjects for study that can be suggested to the lover of science.”

All words in this reading · 73

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.

242

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

From this reading Electricity produces light, also magnetism, and contrariwise light is said to possess [Page 242] the power of magnetizing steel, whilst magnetism again produces light and electricity.

adeterminerUS /ə/

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

From this reading The examination of the precise meaning of the term correlation, so ably considered by Professor Grove, indicates a necessary mutual or reciprocal dependence of one force on the other.

ablyadverbUS /ˈeɪbli/

with competence; in a competent capable manner

From this reading The examination of the precise meaning of the term correlation, so ably considered by Professor Grove, indicates a necessary mutual or reciprocal dependence of one force on the other.

againadverbUS /əˈɡen/

anew

From this reading Electricity produces light, also magnetism, and contrariwise light is said to possess [Page 242] the power of magnetizing steel, whilst magnetism again produces light and electricity.

alsoadverbUS /ˈɔːlsoʊ/

in addition

From this reading Electricity produces light, also magnetism, and contrariwise light is said to possess [Page 242] the power of magnetizing steel, whilst magnetism again produces light and electricity.

andconjunctionUS /ənd/

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

From this reading The correlation of the physical forces, heat, light, electricity, magnetism, and motion, is one of the most interesting subjects for study that can be suggested to the lover of science.

asconjunctionUS /æz/

at the same time that; because; in the way that

From this reading Thus, electricity will produce heat, and _vice versâ_; motion, such as friction, produces electricity, and the latter, by its attraction and repulsion, establishes itself as a source of motion.

attractionnounUS /əˈtrækʃən/

the force by which one object attracts another

From this reading Thus, electricity will produce heat, and _vice versâ_; motion, such as friction, produces electricity, and the latter, by its attraction and repulsion, establishes itself as a source of motion.

beauxiliary verbUS /biː/

used with a past participle to form the passive, or with -ing for continuous tenses

From this reading The correlation of the physical forces, heat, light, electricity, magnetism, and motion, is one of the most interesting subjects for study that can be suggested to the lover of science.

byprepositionUS /baɪ/

showing who or what does the action

From this reading The examination of the precise meaning of the term correlation, so ably considered by Professor Grove, indicates a necessary mutual or reciprocal dependence of one force on the other.

canmodal verbUS /kæn/

to be able to, or to be allowed to

From this reading The correlation of the physical forces, heat, light, electricity, magnetism, and motion, is one of the most interesting subjects for study that can be suggested to the lover of science.

consideredadjectiveUS /kənˈsɪdərd/

carefully weighed

From this reading The examination of the precise meaning of the term correlation, so ably considered by Professor Grove, indicates a necessary mutual or reciprocal dependence of one force on the other.

contrariwiseadverb

in a contrary disobedient manner

From this reading Electricity produces light, also magnetism, and contrariwise light is said to possess [Page 242] the power of magnetizing steel, whilst magnetism again produces light and electricity.

correlationnounUS /ˌkɔːrəˈleɪʃən/

a reciprocal relation between two or more things

From this reading The correlation of the physical forces, heat, light, electricity, magnetism, and motion, is one of the most interesting subjects for study that can be suggested to the lover of science.

dependencenounUS /dɪˈpendəns/

the state of relying on or being controlled by someone or something else

From this reading The examination of the precise meaning of the term correlation, so ably considered by Professor Grove, indicates a necessary mutual or reciprocal dependence of one force on the other.

electricitynounUS /ɪˌlekˈtrɪsəti/

a physical phenomenon associated with stationary or moving electrons and protons

From this reading The correlation of the physical forces, heat, light, electricity, magnetism, and motion, is one of the most interesting subjects for study that can be suggested to the lover of science.

establishesverbUS /ɪˈstæblɪʃɪz/

third-person singular of “establish” — set up or found

From this reading Thus, electricity will produce heat, and _vice versâ_; motion, such as friction, produces electricity, and the latter, by its attraction and repulsion, establishes itself as a source of motion.

examinationnounUS /ɪɡˌzæməˈneɪʃən/

the act of examining something closely (as for mistakes)

From this reading The examination of the precise meaning of the term correlation, so ably considered by Professor Grove, indicates a necessary mutual or reciprocal dependence of one force on the other.

forprepositionUS /fɔːr/

intended to be given to, or used by, somebody

From this reading The correlation of the physical forces, heat, light, electricity, magnetism, and motion, is one of the most interesting subjects for study that can be suggested to the lover of science.

forcenounUS /fɔːrs/

a powerful effect or influence

From this reading The examination of the precise meaning of the term correlation, so ably considered by Professor Grove, indicates a necessary mutual or reciprocal dependence of one force on the other.

forcesnounUS /ˈfɔːrsɪz/

plural of “force” — a powerful effect or influence

From this reading The correlation of the physical forces, heat, light, electricity, magnetism, and motion, is one of the most interesting subjects for study that can be suggested to the lover of science.

frictionnounUS /ˈfrɪkʃən/

a state of conflict between persons

From this reading Thus, electricity will produce heat, and _vice versâ_; motion, such as friction, produces electricity, and the latter, by its attraction and repulsion, establishes itself as a source of motion.

GrovenounUS /ɡroʊv/

a small growth of trees without underbrush

From this reading The examination of the precise meaning of the term correlation, so ably considered by Professor Grove, indicates a necessary mutual or reciprocal dependence of one force on the other.

heatnounUS /hiːt/

a form of energy that is transferred by a difference in temperature

From this reading The correlation of the physical forces, heat, light, electricity, magnetism, and motion, is one of the most interesting subjects for study that can be suggested to the lover of science.

indicatesverbUS /ˈɪndɪkeɪts/

third-person singular of “indicate” — be a signal for or a symptom of

From this reading The examination of the precise meaning of the term correlation, so ably considered by Professor Grove, indicates a necessary mutual or reciprocal dependence of one force on the other.

interestingadjectiveUS /ˈɪntrəstɪŋ/

arousing or holding the attention

From this reading The correlation of the physical forces, heat, light, electricity, magnetism, and motion, is one of the most interesting subjects for study that can be suggested to the lover of science.

isauxiliary verbUS /ɪz/

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

From this reading The correlation of the physical forces, heat, light, electricity, magnetism, and motion, is one of the most interesting subjects for study that can be suggested to the lover of science.

itsdeterminerUS /ɪts/

belonging to the thing or animal already mentioned

From this reading Thus, electricity will produce heat, and _vice versâ_; motion, such as friction, produces electricity, and the latter, by its attraction and repulsion, establishes itself as a source of motion.

itselfpronounUS /ˌɪtˈself/

used when the thing doing the action is also its object

From this reading Thus, electricity will produce heat, and _vice versâ_; motion, such as friction, produces electricity, and the latter, by its attraction and repulsion, establishes itself as a source of motion.

latteradjectiveUS /ˈlætər/

referring to the second of two things or persons mentioned (or the last one or ones of several)

From this reading Thus, electricity will produce heat, and _vice versâ_; motion, such as friction, produces electricity, and the latter, by its attraction and repulsion, establishes itself as a source of motion.

lightadjectiveUS /laɪt/

of comparatively little physical weight or density

From this reading The correlation of the physical forces, heat, light, electricity, magnetism, and motion, is one of the most interesting subjects for study that can be suggested to the lover of science.

lovernounUS /ˈlʌvər/

a person who loves someone or is loved by someone

From this reading The correlation of the physical forces, heat, light, electricity, magnetism, and motion, is one of the most interesting subjects for study that can be suggested to the lover of science.

magnetismnounUS /ˈmæɡnətɪzəm/

attraction for iron; associated with electric currents as well as magnets; characterized by fields of force

From this reading The correlation of the physical forces, heat, light, electricity, magnetism, and motion, is one of the most interesting subjects for study that can be suggested to the lover of science.

magnetizing

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

From this reading Electricity produces light, also magnetism, and contrariwise light is said to possess [Page 242] the power of magnetizing steel, whilst magnetism again produces light and electricity.

MAGNETO-ELECTRICITY

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

From this reading MAGNETO-ELECTRICITY.

meaningnounUS /ˈmiːnɪŋ/

the message that is intended or expressed or signified

From this reading The examination of the precise meaning of the term correlation, so ably considered by Professor Grove, indicates a necessary mutual or reciprocal dependence of one force on the other.

mostadverbUS /moʊst/

used to form the superlative

From this reading The correlation of the physical forces, heat, light, electricity, magnetism, and motion, is one of the most interesting subjects for study that can be suggested to the lover of science.

motionnounUS /ˈmoʊʃən/

the use of movements (especially of the hands) to communicate familiar or prearranged signals

From this reading The correlation of the physical forces, heat, light, electricity, magnetism, and motion, is one of the most interesting subjects for study that can be suggested to the lover of science.

mutualadjectiveUS /ˈmjuːtʃuːəl/

common to or shared by two or more parties

From this reading The examination of the precise meaning of the term correlation, so ably considered by Professor Grove, indicates a necessary mutual or reciprocal dependence of one force on the other.

necessaryadjectiveUS /ˈnesəseri/

absolutely essential

From this reading The examination of the precise meaning of the term correlation, so ably considered by Professor Grove, indicates a necessary mutual or reciprocal dependence of one force on the other.

ofprepositionUS /ʌv/

belonging to, or connected with, somebody or something

From this reading The correlation of the physical forces, heat, light, electricity, magnetism, and motion, is one of the most interesting subjects for study that can be suggested to the lover of science.

onprepositionUS /ɑːn/

touching and supported by a surface

From this reading The examination of the precise meaning of the term correlation, so ably considered by Professor Grove, indicates a necessary mutual or reciprocal dependence of one force on the other.

onepronounUS /wʌn/

used to mean any person in general, including the speaker

From this reading The correlation of the physical forces, heat, light, electricity, magnetism, and motion, is one of the most interesting subjects for study that can be suggested to the lover of science.

orconjunctionUS /ɔːr/

used to join alternatives or possibilities

From this reading The examination of the precise meaning of the term correlation, so ably considered by Professor Grove, indicates a necessary mutual or reciprocal dependence of one force on the other.

otheradjectiveUS /ˈʌðər/

not the same one or ones already mentioned or implied

From this reading The examination of the precise meaning of the term correlation, so ably considered by Professor Grove, indicates a necessary mutual or reciprocal dependence of one force on the other.

PagenounUS /peɪdʒ/

one side of one leaf (of a book or magazine or newspaper or letter etc.) or the written or pictorial matter it contains

From this reading Electricity produces light, also magnetism, and contrariwise light is said to possess [Page 242] the power of magnetizing steel, whilst magnetism again produces light and electricity.

physicaladjectiveUS /ˈfɪzɪkəl/

involving the body as distinguished from the mind or spirit

From this reading The correlation of the physical forces, heat, light, electricity, magnetism, and motion, is one of the most interesting subjects for study that can be suggested to the lover of science.

possessverbUS /pəˈzes/

have as an attribute, knowledge, or skill

From this reading Electricity produces light, also magnetism, and contrariwise light is said to possess [Page 242] the power of magnetizing steel, whilst magnetism again produces light and electricity.

powernounUS /ˈpaʊər/

possession of controlling influence

From this reading Electricity produces light, also magnetism, and contrariwise light is said to possess [Page 242] the power of magnetizing steel, whilst magnetism again produces light and electricity.

preciseadjectiveUS /prɪˈsaɪs/

sharply exact or accurate or delimited

From this reading The examination of the precise meaning of the term correlation, so ably considered by Professor Grove, indicates a necessary mutual or reciprocal dependence of one force on the other.

produceverbUS /prəˈduːs/

bring forth or yield

From this reading Thus, electricity will produce heat, and _vice versâ_; motion, such as friction, produces electricity, and the latter, by its attraction and repulsion, establishes itself as a source of motion.

producesnounUS /prəˈduːsəz/

plural of “produce” — fresh fruits and vegetable grown for the market

From this reading Thus, electricity will produce heat, and _vice versâ_; motion, such as friction, produces electricity, and the latter, by its attraction and repulsion, establishes itself as a source of motion.

ProfessornounUS /prəˈfesər/

someone who is a member of the faculty at a college or university

From this reading The examination of the precise meaning of the term correlation, so ably considered by Professor Grove, indicates a necessary mutual or reciprocal dependence of one force on the other.

reciprocaladjectiveUS /rɪˈsɪprəkəl/

concerning each of two or more persons or things; especially given or done in return

From this reading The examination of the precise meaning of the term correlation, so ably considered by Professor Grove, indicates a necessary mutual or reciprocal dependence of one force on the other.

repulsionnoun

the force by which bodies repel one another

From this reading Thus, electricity will produce heat, and _vice versâ_; motion, such as friction, produces electricity, and the latter, by its attraction and repulsion, establishes itself as a source of motion.

saidadjectiveUS /sed/

being the one previously mentioned or spoken of

From this reading Electricity produces light, also magnetism, and contrariwise light is said to possess [Page 242] the power of magnetizing steel, whilst magnetism again produces light and electricity.

sciencenounUS /ˈsaɪəns/

a particular branch of scientific knowledge

From this reading The correlation of the physical forces, heat, light, electricity, magnetism, and motion, is one of the most interesting subjects for study that can be suggested to the lover of science.

soconjunctionUS /soʊ/

for that reason; with the result that

From this reading The examination of the precise meaning of the term correlation, so ably considered by Professor Grove, indicates a necessary mutual or reciprocal dependence of one force on the other.

sourcenounUS /sɔːrs/

the place where something begins, where it springs into being

From this reading Thus, electricity will produce heat, and _vice versâ_; motion, such as friction, produces electricity, and the latter, by its attraction and repulsion, establishes itself as a source of motion.

steelnounUS /stiːl/

an alloy of iron with small amounts of carbon; widely used in construction; mechanical properties can be varied over a wide range

From this reading Electricity produces light, also magnetism, and contrariwise light is said to possess [Page 242] the power of magnetizing steel, whilst magnetism again produces light and electricity.

studynounUS /ˈstʌdi/

a detailed critical inspection

From this reading The correlation of the physical forces, heat, light, electricity, magnetism, and motion, is one of the most interesting subjects for study that can be suggested to the lover of science.

subjectsnounUS /ˈsʌbdʒɪkts/

plural of “subject” — the subject matter of a conversation or discussion

From this reading The correlation of the physical forces, heat, light, electricity, magnetism, and motion, is one of the most interesting subjects for study that can be suggested to the lover of science.

suchdeterminerUS /sʌtʃ/

of the kind already mentioned

From this reading Thus, electricity will produce heat, and _vice versâ_; motion, such as friction, produces electricity, and the latter, by its attraction and repulsion, establishes itself as a source of motion.

suggestedverbUS /səˈdʒestɪd/

past form of “suggest” — make a proposal, declare a plan for something

From this reading The correlation of the physical forces, heat, light, electricity, magnetism, and motion, is one of the most interesting subjects for study that can be suggested to the lover of science.

termnounUS /tɜːrm/

a word or expression used for some particular thing

From this reading The examination of the precise meaning of the term correlation, so ably considered by Professor Grove, indicates a necessary mutual or reciprocal dependence of one force on the other.

thatconjunctionUS /ðæt/

used to introduce what somebody said, thought, or felt

From this reading The correlation of the physical forces, heat, light, electricity, magnetism, and motion, is one of the most interesting subjects for study that can be suggested to the lover of science.

ThedeterminerUS /ðə/

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

From this reading The correlation of the physical forces, heat, light, electricity, magnetism, and motion, is one of the most interesting subjects for study that can be suggested to the lover of science.

ThusadverbUS /ðʌs/

(used to introduce a logical conclusion) from that fact or reason or as a result

From this reading Thus, electricity will produce heat, and _vice versâ_; motion, such as friction, produces electricity, and the latter, by its attraction and repulsion, establishes itself as a source of motion.

toparticleUS /tuː/

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

From this reading The correlation of the physical forces, heat, light, electricity, magnetism, and motion, is one of the most interesting subjects for study that can be suggested to the lover of science.

versâ

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

From this reading Thus, electricity will produce heat, and _vice versâ_; motion, such as friction, produces electricity, and the latter, by its attraction and repulsion, establishes itself as a source of motion.

vicenounUS /vaɪs/

moral weakness

From this reading Thus, electricity will produce heat, and _vice versâ_; motion, such as friction, produces electricity, and the latter, by its attraction and repulsion, establishes itself as a source of motion.

whilstconjunctionUS /waɪlst/

an old and formal word for “while”

From this reading Electricity produces light, also magnetism, and contrariwise light is said to possess [Page 242] the power of magnetizing steel, whilst magnetism again produces light and electricity.

willmodal verbUS /wɪl/

used to talk about the future, or about willingness

From this reading Thus, electricity will produce heat, and _vice versâ_; motion, such as friction, produces electricity, and the latter, by its attraction and repulsion, establishes itself as a source of motion.

Chapter 20 of The Boy's Playbook of Science by John Henry Pepper holds 42 sentences, grouped into 9 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 20 of The Boy's Playbook of Science contain?

Chapter 20 holds 42 sentences of The Boy's Playbook of Science, unabridged, divided into 9 reading sections.

This page carries chapter 20 of The Boy's Playbook of Science by John Henry Pepper exactly as it stands in the source edition, without abridgement. It runs to 42 sentences, grouped into 9 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 20 of The Boy's Playbook of Science?

Work through the 9 sections in order, replaying any sentence and tapping unfamiliar words for their entries.

Each of the 9 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 20 be read aloud to me?

Yes — every sentence and every individual word in chapter 20 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 The Boy's Playbook of Science

Common questions about reading The Boy's Playbook of Science by John Henry Pepper on this page, its source edition and its audio.

Is this the complete text of The Boy's Playbook of Science?

Yes. All 4206 sentences of Project Gutenberg eBook #41839 are kept, with a record of which sentences cover which part.

Which edition of The Boy's Playbook of Science is used?

Project Gutenberg eBook #41839, unabridged. The Project Gutenberg header, footer and licence are removed.

How long does The Boy's Playbook of Science take to read?

About 350 minutes of reading across 842 sections of 5 sentences each, at an unhurried pace.

How to read The Boy's Playbook of Science section by section

How to work through The Boy's Playbook of Science section by section, using the audio and the tap-to-define vocabulary.

  1. Open a chapter

    Choose one of the 31 chapters of The Boy's Playbook of Science 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 The Boy's Playbook of Science

Words and structures a reader meets early in The Boy's Playbook of Science, each tappable for pronunciation and meaning.

Chemical
A word that appears in the opening chapter of The Boy's Playbook of Science; the reader can tap it to hear it and see its dictionary entry.
Philosophical
A word that appears in the opening chapter of The Boy's Playbook of Science; the reader can tap it to hear it and see its dictionary entry.
Apparatus
A word that appears in the opening chapter of The Boy's Playbook of Science; the reader can tap it to hear it and see its dictionary entry.
Required
A word that appears in the opening chapter of The Boy's Playbook of Science; the reader can tap it to hear it and see its dictionary entry.