What's the difference between graphite and pencil?

Graphite


Definition:

  • (n.) Native carbon in hexagonal crystals, also foliated or granular massive, of black color and metallic luster, and so soft as to leave a trace on paper. It is used for pencils (improperly called lead pencils), for crucibles, and as a lubricator, etc. Often called plumbago or black lead.

Example Sentences:

  • (1) Here we present images of polydeoxyadenylate molecules aligned in parallel, with their bases lying flat on a surface of highly oriented pyrolytic graphite and with their charged phosphodiester backbones protruding upwards.
  • (2) This is a report on a male patient of 71 years of age who had been a graphite mill worker for about 14 years.
  • (3) The concentration of gold in whole blood was determined using graphite furnace atomic absorption spectrophotometry.
  • (4) As subcritical crack velocities under cyclic loading were found to be many orders of magnitude faster than those measured under equivalent monotonic loads and to occur at typically 45% lower stress-intensity levels, cyclic fatigue in pyrolytic carbon-coated graphite is reasoned to be a vital consideration in the design and life-prediction procedures of prosthetic devices manufactured from this material.
  • (5) A 5-year-old boy had an excisional biopsy of a pigmented scleral lesion thought clinically to be a foreign body, probably graphite from a pencil.
  • (6) A membrane-free glucose sensor was made by covalent immobilization of glucose oxidase on graphite followed by adsorption of N-methyl-phenazinium ion (PMS+).
  • (7) Stearate-modified graphite paste recording electrodes were acutely or chronically implanted into the nucleus accumbens along with bipolar stimulating electrodes in the ipsilateral ventral tegmental area (VTA).
  • (8) I describe a micro-scale method for determining lead in whole blood by utilizing a graphite furnace.
  • (9) The reconstituted acid mixture is injected into the graphite tube atomizer for analysis of Cu and Cd and aspirated into the air--acetylene flame for measurement of Zn.
  • (10) A spokesman said Graphite had “received no income or interest payments, or proceeds of any kind, from its investment in City & County”.
  • (11) Tissue reactivity to carbon cloth, graphite cloth and vitreous carbon in the solid was studied in dogs.
  • (12) The mercury-graphite electrode was also checked in respect of both the plating time and the amount of analyses performed.
  • (13) Tritium retention noted in graphite tiles underscores the significance of material selection in present and future 3H-fueled fusion devices.
  • (14) The resolution of the enantiomers of three closely related benzodiazepines, temazepam, oxazepam and lorazepam, is attempted on three new column systems: cellulose triacetate, beta-cyclodextrin and the reversed-phase column porous graphitic carbon with beta-cyclodextrin as a mobile phase additive.
  • (15) For some metals the analysis can be directly achieved by means of atomisation of the biological liquid in a flame or in a graphite furnace; for other metals it is necessary a treatment of the sample to separate the metal from the rest of the matrix, which can be: calcination, microcalcination, mining.
  • (16) A new grade of graphite-isotropic, fine-grained, and of superior strength-has been produced at the Oak Ridge National Laboratory.
  • (17) We believe that the introduction of high-performance background correction such as Smith-Hieftje, delayed atomization techniques, and aerosol deposition have taken graphite furnace AAS into its third phase.
  • (18) Zinc was analyzed by flame atomic absorption spectrophotometry, and the other elements by graphite furnace atomic absorption.
  • (19) An analysis of the product of interaction of a sample of native DNA with a large pyrolytic graphite electrode in the presence of formaldehyde at approximately neutral pH did not prove changes in the secondary structure of native DNA due to its interaction with the graphite electrode.
  • (20) Alternatively, a 50-mu-l sample of blood or erythrocytes is treated with 50 mu-l of concentrated nitric acid and a 1.5-mu-l aliquot is analyzed with use of the graphite tube.

Pencil


Definition:

  • (n.) A small, fine brush of hair or bristles used by painters for laying on colors.
  • (n.) A slender cylinder or strip of black lead, colored chalk, slate etc., or such a cylinder or strip inserted in a small wooden rod intended to be pointed, or in a case, which forms a handle, -- used for drawing or writing. See Graphite.
  • (n.) Hence, figuratively, an artist's ability or peculiar manner; also, in general, the act or occupation of the artist, descriptive writer, etc.
  • (n.) An aggregate or collection of rays of light, especially when diverging from, or converging to, a point.
  • (n.) A number of lines that intersect in one point, the point of intersection being called the pencil point.
  • (n.) A small medicated bougie.
  • (v. t.) To write or mark with a pencil; to paint or to draw.

Example Sentences:

  • (1) Analysts have trimmed their profit forecasts for this year with trading profits of £3.3bn pencilled in compared with £3.5bn in 2012-13.
  • (2) There is a developmental sequence of pencil grasp, and useful development scales in copying cube models, drawing geometric shapes, and the draw-a-man test.
  • (3) Comparing results of different stereotests, e.g., random-dot stereograms and the two-pencil test, provides some insight into different levels of cortical binocular interaction.
  • (4) We took all the feedback from users and put pencil to paper to create our consumer 3D printer built for speed and ease of use,” said Pettis.
  • (5) The influence of the parameters' inclination and curving of condylar guidance, intercondylar distance, Bennett angle, distance of the plate, and position of the recording pencil are studied.
  • (6) A numerical example reveals some lesser known properties of the circle of least confusion of astigmatic pencils.
  • (7) A 5-year-old boy had an excisional biopsy of a pigmented scleral lesion thought clinically to be a foreign body, probably graphite from a pencil.
  • (8) said: “The Bank of England seems all but certain to ease policy, with only the scale and form of easing in question.” Monks is predicting a bigger cut than many of his peers in the City, pencilling in a drop in official interest rates to zero.
  • (9) An illusion is something done one way that looks the other, like if you put a mirror in front of a pencil so the pencil looks like it's somewhere else.
  • (10) Twenty-nine women were obtained from two community-based facilities and administered the 10-item Edinburgh Postnatal Depression Scale (EDPS) in a computerised and 'pencil and paper' form.
  • (11) Differential pencil beam (DPB) is defined as the dose distribution relative to the position of the first collision, per unit collision density, for a monoenergetic pencil beam of photons in an infinite homogeneous medium of unit density.
  • (12) While that is higher than the 1.6% decline that statisticians had previously pencilled in, it will have no impact on an initial estimate for first quarter GDP growth of 0.3% – half the pace in the previous three months .
  • (13) Some can't afford their own uniforms or pencil tins and we have to teach them the most basic things, like how to queue up for dinner,” said Cater-Whitham.
  • (14) The drugmaker has also pencilled in mid- to high-single digit growth from emerging markets, building on growth in China, where it saw revenues leap by 22% in the first quarter of this year.
  • (15) In recent years there has been growing conceptual interest in narcissism, coupled with the rapid development of several paper and pencil measures.
  • (16) A case of mediastinitis occurred following perforation of the pharynx by a pencil.
  • (17) His pencil or pastel notes, readjusts, notes again with more emphasis the advancing or receding edge of a continually moving body.
  • (18) The first scratch of an HB pencil across the fresh page of a new notebook.
  • (19) Sources say the Sun has pencilled in September for the erection of its paywall.
  • (20) Psychological instruments are usually developed to subjectively measure specific variables; however, there may not be a fit if the researcher used a paper-and-pencil instrument developed to measure anxiety in psychiatric patients to measure anxiety in the sedated, postanesthesia patient.