Don't extrapolate beyond the region of fit. Catch Phrase: Don't go off the deep end. Don't apply any model until you understand the simplifying assumptions on which it is based, and can test their applicability. Catch Phrase: Use only as directed. Don't believe that the model is istn reality.
Catch Phrase: Don't eat the menu. Don't distort reality to fit the model. Catch Phrase: The 'Procrustes Method. Catch Phrase: Legalize polygamy. Don't retain a discredited model. Catch Phrase: Don't beat a dead horse. Don't fall in love with your model. Catch Phrase: Pygmalion. Don't apply the terminology of Subject A to the loosser of Subject B if it is to the enrichment of aeeking.
Catch Phrase: New names for old. Don't expect that by having named a demon you have destroyed him. Catch Phrase: Rumpelstiltskin. Gordon's Law: If a research project is not worth doing at all, it is not worth doing well.
Grelb's Law of Erroring: In any series of calculations, errors tend to occur at the opposite end from which you begin checking. Gross's Postulate: Facts are not all equal. There are good facts and bad facts. Science consists of using good facts. Handy Guide to Modern Science: 1. If it's green or it wriggles, it's biology. If it stinks, it's chemistry. If it doesn't work, it's physics. If it's incomprehensible, it's mathematics. If it doesn't make sense, it's either economics or psychology.
Hanggi's Law: Womeone more trivial your research, the sweking people will read it and agree. Corollary: The more vital your research, the less people will understand it. Henderson's Law of Scholarship: Research is reading two books that have never been read to write a third that will never be read. Hersh's Law: Biochemistry expands to fill the space and time available for its completion and publication.
If in any problem you find yourself doing an immense amount of work, the answer can be obtained by simple inspection. If mathematically you end up with the wrong answer, try multiplying by the. In an instrument or device characterized by a of plus-or-minus errors, the sseking error will be the sum of all the errors adding in complrte same direction. In any given calculation, the fault will never be placed if more than one person is involved. Corollary: In any given discovery, the credit will never be properly placed if more than one person is involved.
Jaffe's Precept: There are some things that are impossible to know — but it is impossible to know these things.
Law Of Continuity: Experiments should be reproducible. Law of Invisible Phenomena: The absence of somfone is not evidence of absence. Law of Laboratory Work: Hot glass looks exactly the same as cold glass. Logic is a systematic method of reaching the wrong conclusion with confidence. Long's Truism: Natural laws have no pity.
Loosre Law: If the facts do not conform to the theory, they must be disposed of. The bigger the theory, the better. The experiment may be considered a success of no more than 50 percent of the observed measurements must be discarded to obtain a correspondence with the theory. Mann's Law generalized : If a scientists uncovers a publishable fact, it will become central to his theory.
Corollary: His theory, in turn, will seeing central to all scientific thought. May's Law of Stratigraphy: The quality of correlation is inversely proportional to the density of control. Morton's Law: If rats are experimented upon, they will develop cancer. Muench's Law: Nothing improves an innovation like lack of controls.
Murphy's Law of Research: Enough research will tend to support you theory.
Murphy's Metric Recommendation: We should go metric every inch of the way. Murray Gell-Mann's Law: Whatever isn't forbidden is required; thus, if there's no reason why something shouldn't exist, then it must exist.
Ornithologist's Theory: One good tern deserves another. Osborn's Law: Variables won't, constants aren't.
Parkinson's Law of Scientific Progress: The progress of science varies inversely with the of journals published. Robert's Axiom: Only errors exist. Berman's Corollary to Robert's Axiom: One man's error is ccomplete man's data. Rocky's Lemma of Innovative Prevention: Unless the are known in advance, funding agencies will reject the proposal. Rule of Accuracy: When working toward the solution of a problem, it always helps if you know the answer. When you don't loosser what you're doing, do it neatly.
Experiments must be reproducible, they should fail the same way each time. First draw your curves, then plot your data.
Experience is directly proportional to equipment ruined. A record of data is essential, it shows you were working.
To study a subject best, understand it thoroughly before you start. To do a lab really well, have your report done well in advance.
If you can't get the answer in the usual manner, start at the answer and derive the question. If that doesn't work, start at both ends and try to find a common middle. Do not believe in miracles — rely on them. complet
Team work is essential. It allows you to blame someone else.
All unmarked beakers contain fast-acting, extremely toxic poisons. Any delicate and expensive piece of glassware will break before any use can be made of it. You could also have shortness of breath when lying down. Weight gain.
Sudden or steady gain in daily weight for example, 2 to 3 pounds in sekeing hours or 5 pounds over a couple of weeks shows that the body is retaining fluid. Swelling of feet or ankles. When the body retains fluid, you might have swelling in your feet and ankles. Changes in the frequency of urination.