TODAY IN SCIENCE HISTORY ®  •  TODAYINSCI ®
Celebrating 24 Years on the Web
Find science on or your birthday

Today in Science History - Quickie Quiz
Who said: “I was going to record talking... the foil was put on; I then shouted 'Mary had a little lamb',... and the machine reproduced it perfectly.”
more quiz questions >>
Home > Category Index for Science Quotations > Category Index F > Category: Frequency

Frequency Quotes (25 quotes)

[As a youth, fiddling in my home laboratory] I discovered a formula for the frequency of a resonant circuit which was 2π x sqrt(LC) where L is the inductance and C the capacitance of the circuit. And there was π, and where was the circle? … I still don’t quite know where that circle is, where that π comes from.
From address to the National Science Teachers’ Association convention (Apr 1966), 'What Is Science?', collected in Richard Phillips Feynman and Jeffrey Robbins (ed.), The Pleasure of Finding Things Out: The Best Short Works of Richard P. Feynman (1999, 2005), 177.
Science quotes on:  |  Circle (117)  |  Circuit (29)  |  Discover (571)  |  Discovery (837)  |  Formula (102)  |  Home (184)  |  Know (1538)  |  Knowledge (1647)  |  Laboratory (214)  |  Pi (14)  |  Still (614)  |  Youth (109)

Conclusions
I. A curve has been found representing the frequency distribution of standard deviations of samples drawn from a normal population.
II. A curve has been found representing the frequency distribution of values of the means of such samples, when these values are measured from the mean of the population in terms of the standard deviation of the sample…
IV. Tables are given by which it can be judged whether a series of experiments, however short, have given a result which conforms to any required standard of accuracy or whether it is necessary to continue the investigation.
'The Probable Error of a Mean', Biometrika, 1908, 6, 25.
Science quotes on:  |  Accuracy (81)  |  Conclusion (266)  |  Continue (179)  |  Curve (49)  |  Deviation (21)  |  Distribution (51)  |  Experiment (736)  |  Investigation (250)  |  Mean (810)  |  Means (587)  |  Necessary (370)  |  Population (115)  |  Required (108)  |  Result (700)  |  Sample (19)  |  Series (153)  |  Short (200)  |  Standard Deviation (3)  |  Statistics (170)  |  Table (105)  |  Term (357)  |  Terms (184)  |  Value (393)

~~[Dubious]~~ If you want to find the secrets of the universe, think in terms of energy, frequency and vibration.
Very dubious that is a true quote from Tesla, however intriguing. Webmaster, as yet, has found no reliable primary source for this quote, and doubts that it is authentic. It has widely spread virally, and is duplicated in various copycat quote collections, but that cannot add any authenticity. On a webpage by Ralph Bergstresser about the healing powers of the Ganges River, he footnotes the quote as from “a conversation with the famous scientist, Dr. Nikola Tesla, in 1942.” Note that Tesla, late in life had fading energy and mental health, and died poor and reclusive, on 7 Jan 1943. Webmaster places no credibility on said source, and therefore regards it as no more than Anonymous.
Science quotes on:  |  Energy (373)  |  If You Want To Find (4)  |  Secret (216)  |  Universe (900)  |  Vibration (26)

All interesting issues in natural history are questions of relative frequency, not single examples. Everything happens once amidst the richness of nature. But when an unanticipated phenomenon occurs again and again–finally turning into an expectation–then theories are overturned.
…...
Science quotes on:  |  Amidst (2)  |  Everything (489)  |  Example (98)  |  Expectation (67)  |  Finally (26)  |  Happen (282)  |  History (716)  |  Interest (416)  |  Interesting (153)  |  Issue (46)  |  Natural (810)  |  Natural History (77)  |  Nature (2017)  |  Occur (151)  |  Overturn (2)  |  Phenomenon (334)  |  Question (649)  |  Relative (42)  |  Richness (15)  |  Single (365)  |  Theory (1015)  |  Turn (454)  |  Unanticipated (2)

Although the cooking of food presents some unsolved problems, the quick warming of cooked food and the thawing of frozen food both open up some attractive uses. ... There is no important reason why the the housewife of the future should not purchase completely frozen meals at the grocery store just as she buys quick frozen vegetables. With a quick heating, high-frequency unit in her kitchen, food preparation from a pre-cooked, frozen meal becomes a simple matter.
[Predicting home kitchen appliances could be developed from the radionic tube employed to jam enemy radar in World War II.]
In 'Physics of Today Become the Engineering of Tomorrow', Proceedings of the National Electronics Conference (1947), Vols. 1-2, 24-25. Note: by 1947 Ratheon was able to demonstrate a refrigerator-sized commercial microwave oven.
Science quotes on:  |  Appliance (9)  |  Attractive (25)  |  Become (821)  |  Both (496)  |  Completely (137)  |  Cooking (12)  |  Develop (278)  |  Employ (115)  |  Enemy (86)  |  Food (213)  |  Future (467)  |  High (370)  |  Home (184)  |  Kitchen (14)  |  Matter (821)  |  Meal (19)  |  Microwave (4)  |  Open (277)  |  Oven (5)  |  Preparation (60)  |  Present (630)  |  Problem (731)  |  Radar (9)  |  Reason (766)  |  Simple (426)  |  Store (49)  |  Unsolved (15)  |  Use (771)  |  Vegetable (49)  |  War (233)  |  Warming (24)  |  Why (491)  |  World (1850)

As an eminent pioneer in the realm of high frequency currents … I congratulate you [Nikola Tesla] on the great successes of your life’s work.
…...
Science quotes on:  |  Current (122)  |  Eminent (20)  |  Great (1610)  |  High (370)  |  Life (1870)  |  Pioneer (37)  |  Realm (87)  |  Success (327)  |  Nikola Tesla (39)  |  Work (1402)

At this very minute, with almost absolute certainty, radio waves sent forth by other intelligent civilizations are falling on the earth. A telescope can be built that, pointed in the right place, and tuned to the right frequency, could discover these waves. Someday, from somewhere out among the stars, will come the answers to many of the oldest, most important, and most exciting questions mankind has asked.
In Intelligent Life in Space (1962), 111.
Science quotes on:  |  Absolute (153)  |  Answer (389)  |  Ask (420)  |  Certainty (180)  |  Civilization (220)  |  Discover (571)  |  Earth (1076)  |  Exciting (50)  |  Fall (243)  |  Important (229)  |  Intelligent (108)  |  Mankind (356)  |  Minute (129)  |  Most (1728)  |  Oldest (9)  |  Other (2233)  |  Point (584)  |  Question (649)  |  Radio (60)  |  Right (473)  |  Someday (15)  |  Star (460)  |  Stars (304)  |  Telescope (106)  |  Tune (20)  |  Wave (112)  |  Will (2350)

For a smart material to be able to send out a more complex signal it needs to be nonlinear. If you hit a tuning fork twice as hard it will ring twice as loud but still at the same frequency. That’s a linear response. If you hit a person twice as hard they’re unlikely just to shout twice as loud. That property lets you learn more about the person than the tuning fork. - When Things Start to Think, 1999.
…...
Science quotes on:  |  Complex (202)  |  Hard (246)  |  Hit (20)  |  Learn (672)  |  Let (64)  |  Linear (13)  |  Loud (9)  |  Material (366)  |  More (2558)  |  Need (320)  |  Nonlinear (4)  |  Person (366)  |  Property (177)  |  Response (56)  |  Ring (18)  |  Same (166)  |  Send (23)  |  Shout (25)  |  Signal (29)  |  Smart (33)  |  Start (237)  |  Still (614)  |  Thing (1914)  |  Think (1122)  |  Tuning Fork (2)  |  Twice (20)  |  Unlikely (15)  |  Will (2350)

I am not ... asserting that humans are either genial or aggressive by inborn biological necessity. Obviously, both kindness and violence lie with in the bounds of our nature because we perpetrate both, in spades. I only advance a structural claim that social stability rules nearly all the time and must be based on an overwhelmingly predominant (but tragically ignored) frequency of genial acts, and that geniality is therefore our usual and preferred response nearly all the time ... The center of human nature is rooted in ten thousand ordinary acts of kindness that define our days.
In Eight Little Piggies: Reflections in Natural History (1993), 282.
Science quotes on:  |  Act (278)  |  Advance (298)  |  Aggressive (4)  |  Assert (69)  |  Base (120)  |  Biological (137)  |  Both (496)  |  Bound (120)  |  Bounds (8)  |  Center (35)  |  Claim (154)  |  Define (53)  |  Genial (3)  |  Human (1512)  |  Human Nature (71)  |  Ignore (52)  |  Inborn (4)  |  Kindness (14)  |  Lie (370)  |  Must (1525)  |  Nature (2017)  |  Nearly (137)  |  Necessity (197)  |  Obviously (11)  |  Ordinary (167)  |  Overwhelmingly (3)  |  Perpetrate (3)  |  Predominant (4)  |  Prefer (27)  |  Response (56)  |  Root (121)  |  Rule (307)  |  Social (261)  |  Spade (3)  |  Stability (28)  |  Structural (29)  |  Thousand (340)  |  Time (1911)  |  Violence (37)

I know of scarcely anything so apt to impress the imagination as the wonderful form of cosmic order expressed by the “Law of Frequency of Error.” The law would have been personified by the Greeks and deified, if they had known of it. It reigns with serenity and in complete self-effacement, amidst the wildest confusion. The huger the mob, and the greater the apparent anarchy, the more perfect is its sway. It is the supreme law of Unreason. Whenever a large sample of chaotic elements are taken in hand and marshaled in the order of their magnitude, an unsuspected and most beautiful form of regularity proves to have been latent all along.
In Natural Inheritance (1894), 66.
Science quotes on:  |  Anarchy (8)  |  Apparent (85)  |  Beautiful (271)  |  Chaos (99)  |  Complete (209)  |  Confusion (61)  |  Cosmic (74)  |  Element (322)  |  Error (339)  |  Express (192)  |  Form (976)  |  Greater (288)  |  Greek (109)  |  Imagination (349)  |  Impress (66)  |  Know (1538)  |  Known (453)  |  Large (398)  |  Latent (13)  |  Law (913)  |  Magnitude (88)  |  Mob (10)  |  More (2558)  |  Most (1728)  |  Order (638)  |  Perfect (223)  |  Prove (261)  |  Regularity (40)  |  Reign (24)  |  Sample (19)  |  Scarcely (75)  |  Self (268)  |  Serenity (11)  |  Supreme (73)  |  Unsuspected (7)  |  Whenever (81)  |  Wonderful (155)

If E is considered to be a continuously divisible quantity, this distribution is possible in infinitely many ways. We consider, however—this is the most essential point of the whole calculation—E to be composed of a well-defined number of equal parts and use thereto the constant of nature h = 6.55 ×10-27 erg sec. This constant multiplied by the common frequency ν of the resonators gives us the energy element ε in erg, and dividing E by ε we get the number P of energy elements which must be divided over the N resonators.
[Planck’s constant, as introduced in 1900; subsequently written e = hν.]
In 'On the theory of the energy distribution law of the normal spectrum', in D. ter Haar and Stephen G. Brush, trans., Planck’s Original Papers in Quantum Physics (1972), 40.
Science quotes on:  |  Calculation (134)  |  Common (447)  |  Consider (428)  |  Constant (148)  |  Definition (238)  |  Distribution (51)  |  Divided (50)  |  Element (322)  |  Energy (373)  |  Equation (138)  |  Essential (210)  |  Introduce (63)  |  Most (1728)  |  Must (1525)  |  Nature (2017)  |  Number (710)  |  Point (584)  |  Possible (560)  |  Quantity (136)  |  Quantum (118)  |  Use (771)  |  Way (1214)  |  Well-Defined (9)  |  Whole (756)

If you want to find the secrets of the universe, think in terms of energy, frequency and vibration.
Widely seen as a purported quote by Tesla, however Webmaster, as yet, has found no reliable primary source for this quote. Webmaster greatly doubts that it is an authentic Tesla quote. The quote is intriguing, has widely spread virally, and is duplicated in various copycat quote collections, but that cannot create any authenticity. On a webpage by Ralph Bergstresser about the healing powers of the Ganges River, he footnotes the quote as from “a conversation with the famous scientist, Dr. Nikola Tesla, in 1942.” Note that late in life, Tesla was reclusive, with fading energy and mental health, and died in poverty on 7 Jan 1943. Webmaster places no credibility on said source, and therefore regards it as no more than Anonymous.
Science quotes on:  |  Energy (373)  |  If You Want To Find (4)  |  Secret (216)  |  Universe (900)  |  Vibration (26)

In the gametes of an individual hybrid the Anlagen for each individual parental character are found in all possible combinations but never in a single gamete the Anlagen for a pair of characters. Each combination occurs with approximately the same frequency.
'Mendel's Regel über das Verhalten der Nachkommenschaft der Rassenbastarde', Der Deutsche Botanisch Gesellschaft, 1900, 18, 158-68. Trans. in Ernst Mayr, The Growth of Biological Thought: Diversity, Evolution and Inheritance (1982), 719.
Science quotes on:  |  Character (259)  |  Combination (150)  |  Gamete (5)  |  Genetics (105)  |  Hybrid (14)  |  Individual (420)  |  Never (1089)  |  Occur (151)  |  Possible (560)  |  Single (365)

Investigating the conditions under which mutations occur … requires studies of mutation frequency under various methods of handling the organisms. As yet, extremely little has been done along this line. That is because, in the past, a mutation was considered a windfall, and the expression “mutation frequency” would have seemed a contradiction in terms. To attempt to study it would have seemed as absurd as to study the conditions affecting the distribution of dollar bills on the sidewalk. You were simply fortunate if you found one. … Of late, however, we may say that certain very exceptional banking houses have been found, in front of which the dollars fall more frequently—in other words, specially mutable genes have been discovered, that are beginning to yield abundant data at the hands of Nilsson-Ehle, Zeleny, Emerson, Anderson and others.
In 'Variation Due to Change in the Individual Gene', The American Naturalist (Jan-Feb 1922), 56, No. 642, 44.
Science quotes on:  |  Absurd (60)  |  Abundant (23)  |  Attempt (266)  |  Beginning (312)  |  Certain (557)  |  Condition (362)  |  Consider (428)  |  Contradiction (69)  |  Data (162)  |  Discover (571)  |  Discovery (837)  |  Distribution (51)  |  Exceptional (19)  |  Expression (181)  |  Fall (243)  |  Fortunate (31)  |  Gene (105)  |  House (143)  |  Investigate (106)  |  Late (119)  |  Little (717)  |  Method (531)  |  More (2558)  |  Mutation (40)  |  Occur (151)  |  Organism (231)  |  Other (2233)  |  Past (355)  |  Require (229)  |  Say (989)  |  Sidewalk (2)  |  Study (701)  |  Term (357)  |  Terms (184)  |  Various (205)  |  Windfall (2)  |  Word (650)  |  Yield (86)

Mutations and chromosomal changes arise in every sufficiently studied organism with a certain finite frequency, and thus constantly and unremittingly supply the raw materials for evolution. But evolution involves something more than origin of mutations. Mutations and chromosomal changes are only the first stage, or level, of the evolutionary process, governed entirely by the laws of the physiology of individuals. Once produced, mutations are injected in the genetic composition of the population, where their further fate is determined by the dynamic regularities of the physiology of populations. A mutation may be lost or increased in frequency in generations immediately following its origin, and this (in the case of recessive mutations) without regard to the beneficial or deleterious effects of the mutation. The influences of selection, migration, and geographical isolation then mold the genetic structure of populations into new shapes, in conformity with the secular environment and the ecology, especially the breeding habits, of the species. This is the second level of the evolutionary process, on which the impact of the environment produces historical changes in the living population.
Genetics and Origin of Species (1937), 13.
Science quotes on:  |  Arise (162)  |  Breeding (21)  |  Certain (557)  |  Change (639)  |  Chromosome (23)  |  Composition (86)  |  Ecology (81)  |  Effect (414)  |  Environment (239)  |  Evolution (635)  |  Fate (76)  |  Finite (60)  |  First (1302)  |  Generation (256)  |  Genetic (110)  |  Genetics (105)  |  Govern (66)  |  Habit (174)  |  Historical (70)  |  Immediately (115)  |  Impact (45)  |  Individual (420)  |  Influence (231)  |  Injection (9)  |  Involve (93)  |  Isolation (32)  |  Law (913)  |  Living (492)  |  Material (366)  |  Migration (12)  |  Mold (37)  |  More (2558)  |  Mutation (40)  |  New (1273)  |  Organism (231)  |  Origin (250)  |  Origin Of Species (42)  |  Physiology (101)  |  Population (115)  |  Process (439)  |  Produced (187)  |  Raw (28)  |  Recessive (6)  |  Regard (312)  |  Secular (11)  |  Selection (130)  |  Something (718)  |  Species (435)  |  Stage (152)  |  Structure (365)  |  Supply (100)

No isolated experiment, however significant in itself, can suffice for the experimental demonstration of any natural phenomenon; for the “one chance in a million” will undoubtedly occur, with no less and no more than its appropriate frequency, however surprised we may be that it should occur to us.
The Design of Experiments (1935, 1971), 13-14.
Science quotes on:  |  Appropriate (61)  |  Chance (244)  |  Demonstration (120)  |  Experiment (736)  |  Experimental (193)  |  More (2558)  |  Natural (810)  |  Occur (151)  |  Phenomenon (334)  |  Significant (78)  |  Will (2350)

One of the principal results of civilization is to reduce more and more the limits within which the different elements of society fluctuate. The more intelligence increases the more these limits are reduced, and the nearer we approach the beautiful and the good. The perfectibility of the human species results as a necessary consequence of all our researches. Physical defects and monstrosities are gradually disappearing; the frequency and severity of diseases are resisted more successfully by the progress of modern science; the moral qualities of man are proving themselves not less capable of improvement; and the more we advance, the less we shall have need to fear those great political convulsions and wars and their attendant results, which are the scourges of mankind.
…...
Science quotes on:  |  Advance (298)  |  Approach (112)  |  Attendant (3)  |  Beautiful (271)  |  Capable (174)  |  Civilization (220)  |  Consequence (220)  |  Convulsion (5)  |  Defect (31)  |  Different (595)  |  Disappear (84)  |  Disease (340)  |  Element (322)  |  Fear (212)  |  Good (906)  |  Gradually (102)  |  Great (1610)  |  Human (1512)  |  Human Species (11)  |  Improvement (117)  |  Increase (225)  |  Intelligence (218)  |  Less (105)  |  Limit (294)  |  Man (2252)  |  Mankind (356)  |  Modern (402)  |  Modern Science (55)  |  Monstrosity (6)  |  Moral (203)  |  More (2558)  |  Nearer (45)  |  Necessary (370)  |  Need (320)  |  Perfectibility (3)  |  Physical (518)  |  Political (124)  |  Principal (69)  |  Progress (492)  |  Prove (261)  |  Quality (139)  |  Reduce (100)  |  Research (753)  |  Resist (15)  |  Result (700)  |  Scourge (3)  |  Severity (6)  |  Society (350)  |  Species (435)  |  Successful (134)  |  Themselves (433)  |  War (233)

Portable communication instruments will be developed that will enable an individual to communicate directly and promptly with anyone, anywhere in the world. As we learn more about the secrets of space, we shall increase immeasurably the number of usable frequencies until we are able to assign a separate frequency to an individual as a separate telephone number is assigned to each instrument.
In address (Fall 1946) at a dinner in New York to commemorate the 40 years of Sarnoff’s service in the radio field, 'Institute News and Radio Notes: The Past and Future of Radio', Proceedings of the Institute of Radio Engineers (I.R.E.), (May 1947), 35, No. 5, 498. [In 1946, foretelling the cell phone and a hint of the communications satellite? —Webmaster]
Science quotes on:  |  Anyone (38)  |  Anywhere (16)  |  Assign (15)  |  Cell Phone (6)  |  Communication (101)  |  Instrument (158)  |  Invention (400)  |  Learn (672)  |  Number (710)  |  Portable (4)  |  Prediction (89)  |  Satellite (30)  |  Secret (216)  |  Separate (151)  |  Space (523)  |  Telephone (31)  |  World (1850)

The frequency of disastrous consequences in compound fracture, contrasted with the complete immunity from danger to life or limb in simple fracture, is one of the most striking as well as melancholy facts in surgical practice.
'On a New Method of Treating Compound Fracture, Abscesses, etc: With Observations on the Conditions of Supperation', Part I, The Lancet (1867), 326.
Science quotes on:  |  Bone (101)  |  Complete (209)  |  Compound (117)  |  Consequence (220)  |  Contrast (45)  |  Danger (127)  |  Fact (1257)  |  Facts (553)  |  Fracture (7)  |  Immunity (8)  |  Infection (27)  |  Life (1870)  |  Melancholy (17)  |  Most (1728)  |  Practice (212)  |  Simple (426)  |  Striking (48)  |  Treatment (135)

The key to SETI is to guess the type of communication that an alien society would use. The best guesses so far have been that they would use radio waves, and that they would choose a frequency based on 'universal' knowledge—for instance, the 1420 MHz hydrogen frequency. But these are assumptions formulated by the human brain. Who knows what sort of logic a superadvanced nonhuman life form might use? ... Just 150 years ago, an eyeblink in history, radio waves themselves were inconceivable, and we were thinking of lighting fires to signal the Martians.
Quoted on PBS web page related to Nova TV program episode on 'Origins: Do Aliens Exist in the Milky Way'.
Science quotes on:  |  Alien (35)  |  Assumption (96)  |  Best (467)  |  Brain (281)  |  Choose (116)  |  Communication (101)  |  Extraterrestrial Life (20)  |  Fire (203)  |  Form (976)  |  Guess (67)  |  History (716)  |  Human (1512)  |  Hydrogen (80)  |  Know (1538)  |  Knowledge (1647)  |  Life (1870)  |  Lifeform (2)  |  Logic (311)  |  Mars (47)  |  Radio (60)  |  SETI (3)  |  Signal (29)  |  Society (350)  |  Themselves (433)  |  Thinking (425)  |  Type (171)  |  Universal (198)  |  Use (771)  |  Wave (112)  |  Year (963)

The number of humble-bees in any district depends in a great degree on the number of field-mice, which destroy their combs and nests; and Mr. H. Newman, who has long attended to the habits of humble-bees, ... says “Near villages and small towns I have found the nests of humble-bees more numerous than elsewhere, which I attribute to the number of cats that destroy the mice.” Hence it is quite credible that the presence of a feline animal in large numbers in a district might determine, through the intervention first of mice and then of bees, the frequency of certain flowers in that district!
From On the Origin of Species by Means of Natural Selection; or, The Preservation of Favoured Races in the Struggle for Life (1861), 72.
Science quotes on:  |  Animal (651)  |  Attend (67)  |  Attribute (65)  |  Bee (44)  |  Cat (52)  |  Certain (557)  |  Credible (3)  |  Degree (277)  |  Depend (238)  |  Destroy (189)  |  Determine (152)  |  District (11)  |  Elsewhere (10)  |  Field (378)  |  First (1302)  |  Flower (112)  |  Food Chain (7)  |  Found (11)  |  Great (1610)  |  Habit (174)  |  Humble (54)  |  Intervention (18)  |  Large (398)  |  Long (778)  |  More (2558)  |  Mouse (33)  |  Nest (26)  |  Number (710)  |  Numerous (70)  |  Presence (63)  |  Say (989)  |  Small (489)  |  Through (846)  |  Town (30)  |  Village (13)

The starting point of Darwin’s theory of evolution is precisely the existence of those differences between individual members of a race or species which morphologists for the most part rightly neglect. The first condition necessary, in order that any process of Natural Selection may begin among a race, or species, is the existence of differences among its members; and the first step in an enquiry into the possible effect of a selective process upon any character of a race must be an estimate of the frequency with which individuals, exhibiting any given degree of abnormality with respect to that, character, occur. The unit, with which such an enquiry must deal, is not an individual but a race, or a statistically representative sample of a race; and the result must take the form of a numerical statement, showing the relative frequency with which the various kinds of individuals composing the race occur.
Biometrika: A Joumal for the Statistical Study of Biological Problems (1901), 1, 1-2.
Science quotes on:  |  Begin (275)  |  Beginning (312)  |  Character (259)  |  Composition (86)  |  Condition (362)  |  Charles Darwin (322)  |  Deal (192)  |  Degree (277)  |  Difference (355)  |  Effect (414)  |  Enquiry (89)  |  Estimate (59)  |  Evolution (635)  |  Existence (481)  |  First (1302)  |  Form (976)  |  Individual (420)  |  Kind (564)  |  Member (42)  |  Most (1728)  |  Must (1525)  |  Natural (810)  |  Natural Selection (98)  |  Necessary (370)  |  Necessity (197)  |  Neglect (63)  |  Number (710)  |  Numerical (39)  |  Occur (151)  |  Occurrence (53)  |  Order (638)  |  Point (584)  |  Possible (560)  |  Precisely (93)  |  Precision (72)  |  Process (439)  |  Race (278)  |  Relative (42)  |  Representative (14)  |  Respect (212)  |  Result (700)  |  Sample (19)  |  Selection (130)  |  Selective (21)  |  Species (435)  |  Start (237)  |  Starting Point (16)  |  Statement (148)  |  Statistics (170)  |  Step (234)  |  Theory (1015)  |  Various (205)

To the extent that remaining old-growth Douglas fir ecosystems possess unique structural and functional characteristics distinct from surrounding managed forests, the analogy between forest habitat islands and oceanic islands applies. Forest planning decision variables such as total acreage to be maintained, patch size frequency distribution, spatial distribution of patches, specific locations, and protective measures all need to be addressed.
In The Fragmented Forest: Island Biogeography Theory and the Preservation of Biotic Diversity (1984), 6.
Science quotes on:  |  Address (13)  |  Analogy (76)  |  Characteristic (154)  |  Decision (98)  |  Distinct (98)  |  Distribution (51)  |  Douglas Fir (2)  |  Ecosystem (33)  |  Extent (142)  |  Forest (161)  |  Forest Management (2)  |  Function (235)  |  Growth (200)  |  Habitat (17)  |  Island (49)  |  Location (15)  |  Maintain (105)  |  Manage (26)  |  Measure (241)  |  Need (320)  |  Old (499)  |  Old-Growth (2)  |  Patch (9)  |  Plan (122)  |  Planning (21)  |  Possess (157)  |  Protective (5)  |  Remain (355)  |  Remaining (45)  |  Size (62)  |  Spatial (10)  |  Specific (98)  |  Structural (29)  |  Surround (33)  |  Total (95)  |  Unique (72)  |  Variable (37)

To what part of electrical science are we not indebted to Faraday? He has increased our knowledge of the hidden and unknown to such an extent, that all subsequent writers are compelled so frequently to mention his name and quote his papers, that the very repetition becomes monotonous. [How] humiliating it may be to acknowledge so great a share of successful investigation to one man...
In the Second Edition ofElements of Electro-Metallurgy: or The Art of Working in Metals by the Galvanic Fluid (143), 128.
Science quotes on:  |  Acknowledge (33)  |  Acknowledgment (13)  |  Become (821)  |  Compulsion (19)  |  Electrical (57)  |  Electricity (168)  |  Extent (142)  |  Michael Faraday (91)  |  Great (1610)  |  Greatness (55)  |  Hidden (43)  |  Humiliation (4)  |  Increase (225)  |  Indebtedness (4)  |  Investigation (250)  |  Knowledge (1647)  |  Man (2252)  |  Mention (84)  |  Monotonous (3)  |  Name (359)  |  Paper (192)  |  Quote (46)  |  Repetition (29)  |  Share (82)  |  Subsequent (34)  |  Success (327)  |  Successful (134)  |  Unknown (195)  |  Writer (90)

Very old and wide-spread is the opinion that forests have an important impact on rainfall. ... If forests enhance the amount and frequency of precipitation simply by being there, deforestation as part of agricultural expansion everywhere, must necessarily result in less rainfall and more frequent droughts. This view is most poignantly expressed by the saying: Man walks the earth and desert follows his steps! ... It is not surprising that under such circumstances the issue of a link between forests and climate has ... been addressed by governments. Lately, the Italian government has been paying special attention to reforestation in Italy and its expected improvement of the climate. ... It must be prevented that periods of heavy rainfall alternate with droughts. ...In the Unites States deforestation plays an important role as well and is seen as the cause for a reduction in rainfall. ... committee chairman of the American Association for Advancement of Science demands decisive steps to extend woodland in order to counteract the increasing drought. ... some serious concerns. In 1873, in Vienna, the congress for agriculture and forestry discussed the problem in detail; and when the Prussian house of representatives ordered a special commission to examine a proposed law pertaining to the preservation and implementation of forests for safeguarding, it pointed out that the steady decrease in the water levels of Prussian rivers was one of the most serious consequences of deforestation only to be rectified by reforestation programs. It is worth mentioning that ... the same concerns were raised in Russia as well and governmental circles reconsidered the issue of deforestation.
as quoted in Eduard Brückner - The Sources and Consequences of Climate Change and Climate Variability in Historical Times editted by N. Stehr and H. von Storch (2000)
Science quotes on:  |  Advancement (63)  |  Agriculture (78)  |  Amount (153)  |  Association (49)  |  Attention (196)  |  Being (1276)  |  Cause (561)  |  Circle (117)  |  Circumstance (139)  |  Circumstances (108)  |  Climate (102)  |  Concern (239)  |  Congress (20)  |  Consequence (220)  |  Decisive (25)  |  Deforestation (50)  |  Demand (131)  |  Desert (59)  |  Detail (150)  |  Drought (14)  |  Earth (1076)  |  Enhance (17)  |  Environment (239)  |  Everywhere (98)  |  Examine (84)  |  Expansion (43)  |  Expect (203)  |  Express (192)  |  Extend (129)  |  Follow (389)  |  Forest (161)  |  Forestry (17)  |  Government (116)  |  House (143)  |  Impact (45)  |  Improvement (117)  |  Italian (13)  |  Law (913)  |  Man (2252)  |  More (2558)  |  Most (1728)  |  Must (1525)  |  Necessarily (137)  |  Old (499)  |  Opinion (291)  |  Order (638)  |  Period (200)  |  Point (584)  |  Precipitation (7)  |  Prevent (98)  |  Problem (731)  |  Rectified (4)  |  Reduction (52)  |  Reforestation (6)  |  Result (700)  |  River (140)  |  Role (86)  |  Serious (98)  |  Special (188)  |  Spread (86)  |  State (505)  |  Steady (45)  |  Step (234)  |  Unite (43)  |  View (496)  |  Walk (138)  |  Water (503)  |  Wide (97)  |  Worth (172)

In science it often happens that scientists say, 'You know that's a really good argument; my position is mistaken,' and then they would actually change their minds and you never hear that old view from them again. They really do it. It doesn't happen as often as it should, because scientists are human and change is sometimes painful. But it happens every day. I cannot recall the last time something like that happened in politics or religion. (1987) -- Carl Sagan
Sitewide search within all Today In Science History pages:
Visit our Science and Scientist Quotations index for more Science Quotes from archaeologists, biologists, chemists, geologists, inventors and inventions, mathematicians, physicists, pioneers in medicine, science events and technology.

Names index: | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |

Categories index: | 1 | 2 | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
Thank you for sharing.

# Science T-Shirts from Amazon

See more at Amazon

by Ian Ellis