1
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading A very simple galvanometer, that will give quite satisfactory results, under favorable conditions, may be constructed as follows: Turn from a piece of hard wood a ring having dimensions corresponding to those given in the cross section, Fig. 1.
18
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading Fill the groove in this ring to within 1/8 in. of the top with No. 18 gauge double-cotton-covered copper wire, insulating the different layers from each other by means of a layer of good bond paper.
6
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading The winding may be started by drilling a small hole through the side of the groove, as close to the bottom as possible, and allowing about 6 in. of the wire to protrude through it.
8
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading Fill the groove in this ring to within 1/8 in. of the top with No. 18 gauge double-cotton-covered copper wire, insulating the different layers from each other by means of a layer of good bond paper.
used before a singular noun to mean one of a group, when it is not a particular one
From this reading How to Construct a Simple Galvanometer A galvanometer is an instrument used to detect the presence of an electrical current in a circuit or to measure the value of the current in amperes.
aboutprepositionUS /əˈbaʊt/
on the subject of; concerning
From this reading The winding may be started by drilling a small hole through the side of the groove, as close to the bottom as possible, and allowing about 6 in. of the wire to protrude through it.
(quantifier) used with either mass or count nouns to indicate the whole number or amount of or every one of a class
From this reading The operation of practically all galvanometers is based upon the same principle, and they differ chiefly in mechanical construction and the relative arrangement of their different parts.
allowingverbUS /əˈlaʊɪŋ/
-ing form of “allow” — make it possible through a specific action or lack of action for something to happen
From this reading The winding may be started by drilling a small hole through the side of the groove, as close to the bottom as possible, and allowing about 6 in. of the wire to protrude through it.
amperesnounUS /ˈæmpɜːrz/
plural of “ampere” — a former unit of electric current (slightly smaller than the SI ampere)
From this reading How to Construct a Simple Galvanometer A galvanometer is an instrument used to detect the presence of an electrical current in a circuit or to measure the value of the current in amperes.
the form of “a” used before a word that begins with a vowel sound
From this reading How to Construct a Simple Galvanometer A galvanometer is an instrument used to detect the presence of an electrical current in a circuit or to measure the value of the current in amperes.
used to join words or parts of a sentence that go together
From this reading The operation of practically all galvanometers is based upon the same principle, and they differ chiefly in mechanical construction and the relative arrangement of their different parts.
arrangementnounUS /ərˈeɪndʒmənt/
the thing arranged or agreed to
From this reading The operation of practically all galvanometers is based upon the same principle, and they differ chiefly in mechanical construction and the relative arrangement of their different parts.
at the same time that; because; in the way that
From this reading A very simple galvanometer, that will give quite satisfactory results, under favorable conditions, may be constructed as follows: Turn from a piece of hard wood a ring having dimensions corresponding to those given in the cross section, Fig. 1.
basedadjectiveUS /beɪst/
having a base
From this reading The operation of practically all galvanometers is based upon the same principle, and they differ chiefly in mechanical construction and the relative arrangement of their different parts.
used with a past participle to form the passive, or with -ing for continuous tenses
From this reading A very simple galvanometer, that will give quite satisfactory results, under favorable conditions, may be constructed as follows: Turn from a piece of hard wood a ring having dimensions corresponding to those given in the cross section, Fig. 1.
bondnounUS /bɑːnd/
an electrical force linking atoms
From this reading Fill the groove in this ring to within 1/8 in. of the top with No. 18 gauge double-cotton-covered copper wire, insulating the different layers from each other by means of a layer of good bond paper.
the lower side of anything
From this reading The winding may be started by drilling a small hole through the side of the groove, as close to the bottom as possible, and allowing about 6 in. of the wire to protrude through it.
showing who or what does the action
From this reading Fill the groove in this ring to within 1/8 in. of the top with No. 18 gauge double-cotton-covered copper wire, insulating the different layers from each other by means of a layer of good bond paper.
chieflyadverbUS /ˈtʃiːfli/
for the most part
From this reading The operation of practically all galvanometers is based upon the same principle, and they differ chiefly in mechanical construction and the relative arrangement of their different parts.
circuitnounUS /ˈsɜːrkət/
an electrical device that provides a path for electrical current to flow
From this reading How to Construct a Simple Galvanometer A galvanometer is an instrument used to detect the presence of an electrical current in a circuit or to measure the value of the current in amperes.
at or within a short distance in space or time or having elements near each other
From this reading The winding may be started by drilling a small hole through the side of the groove, as close to the bottom as possible, and allowing about 6 in. of the wire to protrude through it.
the prevailing context that influences the performance or the outcome of a process
From this reading A very simple galvanometer, that will give quite satisfactory results, under favorable conditions, may be constructed as follows: Turn from a piece of hard wood a ring having dimensions corresponding to those given in the cross section, Fig. 1.
ConstructverbUS /kənˈstrʌkt/
make by combining materials and parts
From this reading How to Construct a Simple Galvanometer A galvanometer is an instrument used to detect the presence of an electrical current in a circuit or to measure the value of the current in amperes.
constructedverbUS /kənˈstrʌktəd/
past form of “construct” — make by combining materials and parts
From this reading A very simple galvanometer, that will give quite satisfactory results, under favorable conditions, may be constructed as follows: Turn from a piece of hard wood a ring having dimensions corresponding to those given in the cross section, Fig. 1.
constructionnounUS /kənˈstrʌkʃən/
the act of constructing something
From this reading The operation of practically all galvanometers is based upon the same principle, and they differ chiefly in mechanical construction and the relative arrangement of their different parts.
coppernounUS /ˈkɑːpər/
a ductile malleable reddish-brown corrosion-resistant diamagnetic metallic element; occurs in various minerals but is the only metal that occurs abundantly in large masses; used as an electrical and thermal conductor
From this reading Fill the groove in this ring to within 1/8 in. of the top with No. 18 gauge double-cotton-covered copper wire, insulating the different layers from each other by means of a layer of good bond paper.
correspondingadjectiveUS /ˌkɔːrəˈspɑːndɪŋ/
accompanying
From this reading A very simple galvanometer, that will give quite satisfactory results, under favorable conditions, may be constructed as follows: Turn from a piece of hard wood a ring having dimensions corresponding to those given in the cross section, Fig. 1.
travel across or pass over
From this reading A very simple galvanometer, that will give quite satisfactory results, under favorable conditions, may be constructed as follows: Turn from a piece of hard wood a ring having dimensions corresponding to those given in the cross section, Fig. 1.
a flow of electricity through a conductor
From this reading How to Construct a Simple Galvanometer A galvanometer is an instrument used to detect the presence of an electrical current in a circuit or to measure the value of the current in amperes.
detectverbUS /dɪˈtekt/
discover or determine the existence, presence, or fact of
From this reading How to Construct a Simple Galvanometer A galvanometer is an instrument used to detect the presence of an electrical current in a circuit or to measure the value of the current in amperes.
differverbUS /ˈdɪfər/
be different
From this reading The operation of practically all galvanometers is based upon the same principle, and they differ chiefly in mechanical construction and the relative arrangement of their different parts.
unlike in nature or quality or form or degree
From this reading The operation of practically all galvanometers is based upon the same principle, and they differ chiefly in mechanical construction and the relative arrangement of their different parts.
dimensionsnounUS /dɪˈmenʃənz/
plural of “dimension” — the magnitude of something in a particular direction (especially length or width or height)
From this reading A very simple galvanometer, that will give quite satisfactory results, under favorable conditions, may be constructed as follows: Turn from a piece of hard wood a ring having dimensions corresponding to those given in the cross section, Fig. 1.
double-cotton-covered
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading Fill the groove in this ring to within 1/8 in. of the top with No. 18 gauge double-cotton-covered copper wire, insulating the different layers from each other by means of a layer of good bond paper.
drillingnounUS /ˈdrɪlɪŋ/
the act of drilling
From this reading The winding may be started by drilling a small hole through the side of the groove, as close to the bottom as possible, and allowing about 6 in. of the wire to protrude through it.
every one of two or more people or things, taken separately
From this reading Fill the groove in this ring to within 1/8 in. of the top with No. 18 gauge double-cotton-covered copper wire, insulating the different layers from each other by means of a layer of good bond paper.
electricaladjectiveUS /ɪˈlektrɪkəl/
relating to or concerned with electricity
From this reading How to Construct a Simple Galvanometer A galvanometer is an instrument used to detect the presence of an electrical current in a circuit or to measure the value of the current in amperes.
favorableadjectiveUS /ˈfeɪvərəbəl/
encouraging or approving or pleasing
From this reading A very simple galvanometer, that will give quite satisfactory results, under favorable conditions, may be constructed as follows: Turn from a piece of hard wood a ring having dimensions corresponding to those given in the cross section, Fig. 1.
FignounUS /fɪɡ/
a diagram or picture illustrating textual material
From this reading A very simple galvanometer, that will give quite satisfactory results, under favorable conditions, may be constructed as follows: Turn from a piece of hard wood a ring having dimensions corresponding to those given in the cross section, Fig. 1.
make full, also in a metaphorical sense
From this reading Fill the groove in this ring to within 1/8 in. of the top with No. 18 gauge double-cotton-covered copper wire, insulating the different layers from each other by means of a layer of good bond paper.
third-person singular of “follow” — to travel behind, go after, come after
From this reading A very simple galvanometer, that will give quite satisfactory results, under favorable conditions, may be constructed as follows: Turn from a piece of hard wood a ring having dimensions corresponding to those given in the cross section, Fig. 1.
showing where something starts, or who sent it
From this reading A very simple galvanometer, that will give quite satisfactory results, under favorable conditions, may be constructed as follows: Turn from a piece of hard wood a ring having dimensions corresponding to those given in the cross section, Fig. 1.
Galvanometernoun
meter for detecting or comparing or measuring small electric currents
From this reading How to Construct a Simple Galvanometer A galvanometer is an instrument used to detect the presence of an electrical current in a circuit or to measure the value of the current in amperes.
galvanometers
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading The operation of practically all galvanometers is based upon the same principle, and they differ chiefly in mechanical construction and the relative arrangement of their different parts.
gaugeverbUS /ɡeɪdʒ/
judge tentatively or form an estimate of (quantities or time)
From this reading Fill the groove in this ring to within 1/8 in. of the top with No. 18 gauge double-cotton-covered copper wire, insulating the different layers from each other by means of a layer of good bond paper.
cause to have, in the abstract sense or physical sense
From this reading A very simple galvanometer, that will give quite satisfactory results, under favorable conditions, may be constructed as follows: Turn from a piece of hard wood a ring having dimensions corresponding to those given in the cross section, Fig. 1.
givenadjectiveUS /ˈɡɪvən/
acknowledged as a supposition
From this reading A very simple galvanometer, that will give quite satisfactory results, under favorable conditions, may be constructed as follows: Turn from a piece of hard wood a ring having dimensions corresponding to those given in the cross section, Fig. 1.
having desirable or positive qualities especially those suitable for a thing specified
From this reading Fill the groove in this ring to within 1/8 in. of the top with No. 18 gauge double-cotton-covered copper wire, insulating the different layers from each other by means of a layer of good bond paper.
groovenounUS /ɡruːv/
a long narrow furrow cut either by a natural process (such as erosion) or by a tool (as e.g. a groove in a phonograph record)
From this reading Fill the groove in this ring to within 1/8 in. of the top with No. 18 gauge double-cotton-covered copper wire, insulating the different layers from each other by means of a layer of good bond paper.
not easy; requiring great physical or mental effort to accomplish or comprehend or endure
From this reading A very simple galvanometer, that will give quite satisfactory results, under favorable conditions, may be constructed as follows: Turn from a piece of hard wood a ring having dimensions corresponding to those given in the cross section, Fig. 1.
havingauxiliary verbUS /ˈhævɪŋ/
the -ing form of “have”
From this reading A very simple galvanometer, that will give quite satisfactory results, under favorable conditions, may be constructed as follows: Turn from a piece of hard wood a ring having dimensions corresponding to those given in the cross section, Fig. 1.
an opening into or through something
From this reading The winding may be started by drilling a small hole through the side of the groove, as close to the bottom as possible, and allowing about 6 in. of the wire to protrude through it.
How
Dictionary entry pending editorial verification. Tap Listen to hear the word.
From this reading How to Construct a Simple Galvanometer A galvanometer is an instrument used to detect the presence of an electrical current in a circuit or to measure the value of the current in amperes.
inside something, or within a place, period, or state
From this reading How to Construct a Simple Galvanometer A galvanometer is an instrument used to detect the presence of an electrical current in a circuit or to measure the value of the current in amperes.
instrumentnounUS /ˈɪnstrəmənt/
a device that requires skill for proper use
From this reading How to Construct a Simple Galvanometer A galvanometer is an instrument used to detect the presence of an electrical current in a circuit or to measure the value of the current in amperes.
insulatingverbUS /ˈɪnsəleɪtɪŋ/
-ing form of “insulate” — protect from heat, cold, or noise by surrounding with insulating material
From this reading Fill the groove in this ring to within 1/8 in. of the top with No. 18 gauge double-cotton-covered copper wire, insulating the different layers from each other by means of a layer of good bond paper.
the form of “be” used with he, she, it, or a singular noun
From this reading How to Construct a Simple Galvanometer A galvanometer is an instrument used to detect the presence of an electrical current in a circuit or to measure the value of the current in amperes.
a thing, animal, or idea already mentioned
From this reading The winding may be started by drilling a small hole through the side of the groove, as close to the bottom as possible, and allowing about 6 in. of the wire to protrude through it.
layernounUS /ˈleɪər/
single thickness of usually some homogeneous substance
From this reading Fill the groove in this ring to within 1/8 in. of the top with No. 18 gauge double-cotton-covered copper wire, insulating the different layers from each other by means of a layer of good bond paper.
layersnounUS /ˈleɪərz/
plural of “layer” — single thickness of usually some homogeneous substance
From this reading Fill the groove in this ring to within 1/8 in. of the top with No. 18 gauge double-cotton-covered copper wire, insulating the different layers from each other by means of a layer of good bond paper.
used to say something is possible, or to give permission
From this reading A very simple galvanometer, that will give quite satisfactory results, under favorable conditions, may be constructed as follows: Turn from a piece of hard wood a ring having dimensions corresponding to those given in the cross section, Fig. 1.
thing or person that acts to produce a particular effect or achieve an end
From this reading Fill the groove in this ring to within 1/8 in. of the top with No. 18 gauge double-cotton-covered copper wire, insulating the different layers from each other by means of a layer of good bond paper.
any maneuver made as part of progress toward a goal
From this reading How to Construct a Simple Galvanometer A galvanometer is an instrument used to detect the presence of an electrical current in a circuit or to measure the value of the current in amperes.
mechanicaladjectiveUS /məˈkænɪkəl/
using (or as if using) mechanisms or tools or devices
From this reading The operation of practically all galvanometers is based upon the same principle, and they differ chiefly in mechanical construction and the relative arrangement of their different parts.
not any; not one
From this reading Fill the groove in this ring to within 1/8 in. of the top with No. 18 gauge double-cotton-covered copper wire, insulating the different layers from each other by means of a layer of good bond paper.
belonging to, or connected with, somebody or something
From this reading How to Construct a Simple Galvanometer A galvanometer is an instrument used to detect the presence of an electrical current in a circuit or to measure the value of the current in amperes.
operationnounUS /ˌɑːpərˈeɪʃən/
the state of being in effect or being operative
From this reading The operation of practically all galvanometers is based upon the same principle, and they differ chiefly in mechanical construction and the relative arrangement of their different parts.
used to join alternatives or possibilities
From this reading How to Construct a Simple Galvanometer A galvanometer is an instrument used to detect the presence of an electrical current in a circuit or to measure the value of the current in amperes.
not the same one or ones already mentioned or implied
From this reading Fill the groove in this ring to within 1/8 in. of the top with No. 18 gauge double-cotton-covered copper wire, insulating the different layers from each other by means of a layer of good bond paper.
a material made of cellulose pulp derived mainly from wood or rags or certain grasses
From this reading Fill the groove in this ring to within 1/8 in. of the top with No. 18 gauge double-cotton-covered copper wire, insulating the different layers from each other by means of a layer of good bond paper.
the local environment
From this reading The operation of practically all galvanometers is based upon the same principle, and they differ chiefly in mechanical construction and the relative arrangement of their different parts.
a separate part of a whole
From this reading A very simple galvanometer, that will give quite satisfactory results, under favorable conditions, may be constructed as follows: Turn from a piece of hard wood a ring having dimensions corresponding to those given in the cross section, Fig. 1.
capable of happening or existing
From this reading The winding may be started by drilling a small hole through the side of the groove, as close to the bottom as possible, and allowing about 6 in. of the wire to protrude through it.
practicallyadverbUS /ˈpræktɪkli/
almost; nearly
From this reading The operation of practically all galvanometers is based upon the same principle, and they differ chiefly in mechanical construction and the relative arrangement of their different parts.
the state of being present; current existence
From this reading How to Construct a Simple Galvanometer A galvanometer is an instrument used to detect the presence of an electrical current in a circuit or to measure the value of the current in amperes.
principlenounUS /ˈprɪnsəpəl/
a basic generalization that is accepted as true and that can be used as a basis for reasoning or conduct
From this reading The operation of practically all galvanometers is based upon the same principle, and they differ chiefly in mechanical construction and the relative arrangement of their different parts.
protrudeverbUS /proʊˈtruːd/
extend out or project in space
From this reading The winding may be started by drilling a small hole through the side of the groove, as close to the bottom as possible, and allowing about 6 in. of the wire to protrude through it.
to a degree (not used with a negative)
From this reading A very simple galvanometer, that will give quite satisfactory results, under favorable conditions, may be constructed as follows: Turn from a piece of hard wood a ring having dimensions corresponding to those given in the cross section, Fig. 1.
relativenounUS /ˈrelətɪv/
a person related by blood or marriage
From this reading The operation of practically all galvanometers is based upon the same principle, and they differ chiefly in mechanical construction and the relative arrangement of their different parts.
resultsnounUS /rɪˈzʌlts/
plural of “result” — a phenomenon that follows and is caused by some previous phenomenon
From this reading A very simple galvanometer, that will give quite satisfactory results, under favorable conditions, may be constructed as follows: Turn from a piece of hard wood a ring having dimensions corresponding to those given in the cross section, Fig. 1.
sound loudly and sonorously
From this reading A very simple galvanometer, that will give quite satisfactory results, under favorable conditions, may be constructed as follows: Turn from a piece of hard wood a ring having dimensions corresponding to those given in the cross section, Fig. 1.
Identical; not different.
From this reading The operation of practically all galvanometers is based upon the same principle, and they differ chiefly in mechanical construction and the relative arrangement of their different parts.
satisfactoryadjectiveUS /ˌsætəˈsfæktri/
giving satisfaction
From this reading A very simple galvanometer, that will give quite satisfactory results, under favorable conditions, may be constructed as follows: Turn from a piece of hard wood a ring having dimensions corresponding to those given in the cross section, Fig. 1.
sectionnounUS /ˈsekʃən/
a self-contained part of a larger composition (written or musical)
From this reading A very simple galvanometer, that will give quite satisfactory results, under favorable conditions, may be constructed as follows: Turn from a piece of hard wood a ring having dimensions corresponding to those given in the cross section, Fig. 1.
a place within a region identified relative to a center or reference location
From this reading The winding may be started by drilling a small hole through the side of the groove, as close to the bottom as possible, and allowing about 6 in. of the wire to protrude through it.
having few parts; not complex or complicated or involved
From this reading How to Construct a Simple Galvanometer A galvanometer is an instrument used to detect the presence of an electrical current in a circuit or to measure the value of the current in amperes.
limited or below average in number or quantity or magnitude or extent
From this reading The winding may be started by drilling a small hole through the side of the groove, as close to the bottom as possible, and allowing about 6 in. of the wire to protrude through it.
past form of “start” — take the first step or steps in carrying out an action
From this reading The winding may be started by drilling a small hole through the side of the groove, as close to the bottom as possible, and allowing about 6 in. of the wire to protrude through it.
used to introduce what somebody said, thought, or felt
From this reading A very simple galvanometer, that will give quite satisfactory results, under favorable conditions, may be constructed as follows: Turn from a piece of hard wood a ring having dimensions corresponding to those given in the cross section, Fig. 1.
used before a noun that is already known, already mentioned, or the only one of its kind
From this reading How to Construct a Simple Galvanometer A galvanometer is an instrument used to detect the presence of an electrical current in a circuit or to measure the value of the current in amperes.
belonging to the people or things already mentioned
From this reading The operation of practically all galvanometers is based upon the same principle, and they differ chiefly in mechanical construction and the relative arrangement of their different parts.
the people, animals, or things already mentioned, as the subject
From this reading The operation of practically all galvanometers is based upon the same principle, and they differ chiefly in mechanical construction and the relative arrangement of their different parts.
used for a person or thing that is near, or that has just been mentioned
From this reading Fill the groove in this ring to within 1/8 in. of the top with No. 18 gauge double-cotton-covered copper wire, insulating the different layers from each other by means of a layer of good bond paper.
the plural of “that”: the people or things further away, or already known
From this reading A very simple galvanometer, that will give quite satisfactory results, under favorable conditions, may be constructed as follows: Turn from a piece of hard wood a ring having dimensions corresponding to those given in the cross section, Fig. 1.
from one end or side of something to the other
From this reading The winding may be started by drilling a small hole through the side of the groove, as close to the bottom as possible, and allowing about 6 in. of the wire to protrude through it.
used before the base form of a verb to make the infinitive
From this reading How to Construct a Simple Galvanometer A galvanometer is an instrument used to detect the presence of an electrical current in a circuit or to measure the value of the current in amperes.
the upper part of anything
From this reading Fill the groove in this ring to within 1/8 in. of the top with No. 18 gauge double-cotton-covered copper wire, insulating the different layers from each other by means of a layer of good bond paper.
change orientation or direction, also in the abstract sense
From this reading A very simple galvanometer, that will give quite satisfactory results, under favorable conditions, may be constructed as follows: Turn from a piece of hard wood a ring having dimensions corresponding to those given in the cross section, Fig. 1.
underprepositionUS /ˈʌndər/
below or beneath something; less than
From this reading A very simple galvanometer, that will give quite satisfactory results, under favorable conditions, may be constructed as follows: Turn from a piece of hard wood a ring having dimensions corresponding to those given in the cross section, Fig. 1.
uponprepositionUS /əˈpɑːn/
a formal word for “on”
From this reading The operation of practically all galvanometers is based upon the same principle, and they differ chiefly in mechanical construction and the relative arrangement of their different parts.
employed in accomplishing something
From this reading How to Construct a Simple Galvanometer A galvanometer is an instrument used to detect the presence of an electrical current in a circuit or to measure the value of the current in amperes.
a numerical quantity measured or assigned or computed
From this reading How to Construct a Simple Galvanometer A galvanometer is an instrument used to detect the presence of an electrical current in a circuit or to measure the value of the current in amperes.
precisely as stated
From this reading A very simple galvanometer, that will give quite satisfactory results, under favorable conditions, may be constructed as follows: Turn from a piece of hard wood a ring having dimensions corresponding to those given in the cross section, Fig. 1.
used to talk about the future, or about willingness
From this reading A very simple galvanometer, that will give quite satisfactory results, under favorable conditions, may be constructed as follows: Turn from a piece of hard wood a ring having dimensions corresponding to those given in the cross section, Fig. 1.
windingadjectiveUS /ˈwaɪndɪŋ/
marked by repeated turns and bends
From this reading The winding may be started by drilling a small hole through the side of the groove, as close to the bottom as possible, and allowing about 6 in. of the wire to protrude through it.
ligament made of metal and used to fasten things or make cages or fences etc
From this reading Fill the groove in this ring to within 1/8 in. of the top with No. 18 gauge double-cotton-covered copper wire, insulating the different layers from each other by means of a layer of good bond paper.
in the company of; together with
From this reading Fill the groove in this ring to within 1/8 in. of the top with No. 18 gauge double-cotton-covered copper wire, insulating the different layers from each other by means of a layer of good bond paper.
inside; before a period of time has passed
From this reading Fill the groove in this ring to within 1/8 in. of the top with No. 18 gauge double-cotton-covered copper wire, insulating the different layers from each other by means of a layer of good bond paper.
the hard fibrous lignified substance under the bark of trees
From this reading A very simple galvanometer, that will give quite satisfactory results, under favorable conditions, may be constructed as follows: Turn from a piece of hard wood a ring having dimensions corresponding to those given in the cross section, Fig. 1.
