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April 10, 2026
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"Only two species of s of world-wide distribution are at present known which commonly attack the in numbers sufficient to cause serious injury directly due to their feeding operations. These are are the "potato aphid" (' ) and the "green peach aphid" or "spinach aphid" (' ). A third species, apparently also of world-wide distribution, is often present on the potato, frequenting especially the underside of the lower leaves. This is the "buckthorn aphid" (' Patch); which may, under certain conditions, sometimes cause infestations of a serious nature. All three of these species have been proved to be capable of spreading certain s under experimental conditions; and there can be no logical doubt that they function in the same way in the field. Wherever potatoes are grown for seed purposes these three species of aphids may need to be reckoned with."
"In Maine the s deposit their over-wintering eggs on the common garden foxglove (' L.). Egg-laying in this locality begins late in September and extends through October the time varying somewhat with different weather conditions. The eggs hatch in the spring and the aphids of the first generation, wingless forms called "stem-mothers", seek shelter between the folded parts of the growing leaves. The stem-mothers are slow in their development and are about a month in attaining full growth. On reaching maturity they do not lay eggs but produce their young viviparously."
"White masses looking like patches thick mold often occur on , especially about pruning wounds or other scars the trunk and branches and upon s. Beneath this substance are colonies of rusty colored or purplish brown plantlice known as "wooly aphids" on account of the appearance of white covering which is, however, really composed of waxen filaments. The species is common in Maine on , , and and some other ."
"The most cherished of my life came in 1895 — 's Bird-Craft (1895). For the first time, I had coloured bird pictures. Many of these were adapted from Audubon's (1827); single birds, or occasionally a pair, sometimes in surprising attitudes, were depicted. In later years, when looking at the reproductions of Audubon's original plates, every now and then a picture has given me a little tug at the heart, recalling my childhood years of eager search. The simple descriptions, the charming discussions, the enthusiastic introductory chapters of Bird-Craft — all these I pored over and all but learned by heart."
"In teaching our child the English language, we talked to her as an adult except that our words were simple and concrete. In general our practice has been not to correct her mistakes, trusting to the force of good example. As much as possible we have tried to have her words stand for real things; for instance, we took her to see pigs and bears and skunks, so that she would not get her conceptions merely from stories, pictures and s. Finally we make an effort to avoid the dead level of too simple language by at times dealing with familiar situations in new words."
"Ornithological Margaret Morse Nice (1883–1974) changed the course of American through her two pioneering field studies in 1937 and 1943 on the . Although students of understand her importance, few general readers recognize her name, much less significance. There are many reasons this omission should be remedied: her outstanding professional accomplishments, her ability to balance family and career, her management of gender issues, and her work in conservation, preservation, and the ."
"Each spring the drowsy trill of the called us and armed with pails and strainers and home-made nets, off we started to the nearby railroad . Here we found treasures: strings of toad eggs, s big and little, sedate s (which we believed were lizards), and alluring s, drab , and most tempting of all, . Caddis flies had fascinated me ever since I had read about them Charles Kingsley's (1863), and it was wonderful to find that these almost mythical creatures of English brooks were our neighbors here in our own waters."
"The concept of territory proves to be as old as the science of ornithology, since Aristotle was the first writer to mention it. This was pointed out by Lack (Condor, 46, 1944:108) who, however, did not follow the subsequent history of these observations. ... It was Aristotle, then, who declared that eagles partition out the land according to their needs for food, and this statement was incorporated into the books of Pliny, (in regard to ), Albertus Magnus (transferred to vultures), , , and Buffon."
"The notion that global warming is a fact and will be catastrophic is drilled into people to the point where it seems surprising that anyone would question it, and yet, underlying it is very little evidence at all. Nonetheless, there are statements made of such overt unrealism that I feel embarrassed. I feel it discredits science. I think problems will arise when one will need to depend on scientific judgment, and by ruining our credibility now you leave society with a resource of some importance diminished."
"With respect to science, the assumption behind consensus is that science is a source of authority and that authority increases with the number of scientists. Of course, science is not primarily a source of authority. Rather, it is a particularly effective approach to inquiry and analysis. Skepticism is essential to science; consensus is foreign."
"Based on the weak argument that the current models used by the IPCC couldn't reproduce the warming from about 1978 to 1998 without some forcing, and that the only forcing that they could think of was man. Even this argument assumes that these models adequately deal with natural internal variability—that is, such naturally occurring cycles as El Niño, the Pacific Decadal Oscillation, the Atlantic Multidecadal Oscillation, etc. Yet articles from major modeling centers acknowledged that the failure of these models to anticipate the absence of warming for the past dozen years was due to the failure of these models to account for this natural internal variability. Thus even the basis for the weak IPCC argument for anthropogenic climate change was shown to be false."
"We're talking of a few tenths of a degree change in temperature. None of it in the last eight years, by the way. And if we had warming, it should be accomplished by less storminess. But because the temperature itself is so unspectacular, we have developed all sorts of fear of prospect scenarios – of flooding, of plague, of increased storminess when the physics says we should see less. I think it's mainly just like little kids locking themselves in dark closets to see how much they can scare each other and themselves."
"Probably no one will ever know all the difficulties that she encountered, but little by little she achieved her purpose of making her department one of the best in the country."
"I have always claimed that there was no merit in being the only one of a kind.... I have considerable pride in the fact that some of the best work done in geology today by women, ranking with that done by men, has been done by my students.... these are all notable young women who will be a credit to the science of geology."
"That she did master the subject and decide to make it her specialty is an indication of her courage and of that determination which found nothing too difficult."
"While the geological explorations of the South Mountain have been careful and minute and conducted by able geologists, the petrography of its rocks has never been thoroughly investigated. The microscope has not been used to assist in determining the nature and origin of the rocks, and to correct impressions colored by preconceived ideas or by an experience more or less limited to sedimentary structures. Under microscopic scrutiny and the comparative study of recent lavas, an increasing number of the so-called sedimentary rocks are proving to be igneous in origin."
"It is an interesting manifestation of the attitude of certain public critics toward change, that when the collegiate training of women was first on trial there were clamorous complaints that the health of young women was being wrecked; now the same class of public critics are loudly complaining that college women are "Amazons.""
"The fascination of any search after truth lies not in the attainment, which at best is found to be very relative, but in the pursuit, where all the powers of the mind and character are brought into play and are absorbed by the task. One feels oneself in contact with something that is infinite and one finds joy that is beyond expression in sounding the abyss of science and the secrets of the infinite mind."
"One of the most difficult things the doctor and teacher have to do is to blast the popular and ancient delusion that there is an instinctive preparation for parenthood; that because a husband and wife produce a child they are mysteriously endowed with perfect wisdom concerning the nurture and development of this child."
"Prohibition, whether of the use of alcohol or anything else we may want or wish to do, will never develop in us or any people self control, a sense of social responsibility, or the ability to make wise choices for ourselves."
"We wanted to acknowledge the limitations of the methods that we had and give out the data that we had so that people could see how the vaccines were performing"
"We want to make sure we get the answer right, but when we know the answer, we shouldn’t wait to convey it to others, I think people within the agency recognize the need for change""
"The agency needs it to modernize the nation’s public health data infrastructure, for the workforce, and quite honestly, we need it for the intersection of the two. We need data analysts working in public health"
"We will put the pedal to the metal for as long as we can under my leadership. My hope is I will leave them in a place where everyone recognizes that this needs to move"
"You know, here is what I can tell you. We are in a different place. Schools are open. Businesses are open. We have a lot of population immunity out there right now. We have a lot of protection from vaccination already. Deaths are still at 350 a day, but they are way lower than they were a year ago, two years ago at this time"
"The people themselves were responsible or whether many of the things in the structure around them didn’t allow them to operate as swiftly as possible and didn’t allow them to prioritize. I think it’s a little bit of both"
"In a pandemic, you don’t have time to wait. You have to take action to help people. We haven’t been able to be as nimble as we’ve needed to be"
"The latest guidance is based on science and outreach with teachers, parents and the Department of Education. CDC officials conducted comprehensive reviews of literature and extensively studied what happened during school openings in the fall and in Europe"
""We are committed to dismantling the barriers faced by our community based on racism, sexism, queer-antagonism, and other discriminatory factors. These barriers include recent legislation like denying trans people from using the bathroom of their gender, barring trans people from participating in sports of their gender, and banning schools from teaching about LGBTQ acceptance"
"Today, I endorsed ACIP’s vote to expand eligibility for COVID-19 vaccine booster doses. Children 5 through 11 should receive a booster dose at least 5 months after their primary series. Vaccination with a primary series among this age group has lagged behind other age groups leaving them vulnerable to serious illness. With over 18 million doses administered in this age group, we know that these vaccines are safe, and we must continue to increase the number of children who are protected. I encourage parents to keep their children up to date with CDC’s COVID-19 vaccine recommendations."
"Wilson was quick to appreciate the promise of QCD, but he realized that to calculate the theory’s consequences at (relatively) low energies or long distances would be a demanding task. Wilson’s approach ... was revolutionary in its directness: He formulated the theory in computer-friendly form, essentially as a complicated definite integral in a space of enormously large dimension, and then set out to perform the integral numerically. Many years passed before computers and algorithms were up to the job, but lattice gauge theory amply fulfilled Wilson’s vision. The highest award in the field, awarded annually at the major international conference in Lattice Field Theory, bears Wilson’s name."
"You shouldn’t choose a problem on the basis of the tool. You start by thinking about the physics problem, and the computational method should be a tool like any other. Maybe you’ll solve it using computer techniques, maybe using a contour integral; but it’s very important to approach it starting from the physics because otherwise you get lost in the use of the tool, and lose track of where you’re trying to go."
"An especially intractable breed of problems in physics involves those with very many or an infinite number of degrees of freedom and in addition involve “renormalization.” Renormalization is explained as the existence of very many length or energy scales of importance in the physics of the problem. The renormalization group approach is a way of reducing the complexity of these problems to the point where numerical methods can be used to solve them. The Kondo problem (dilute magnetic alloys) is used as an illustration."
"The fourth aspect of renormalization group theory is the construction of nondiagrammatic renormalization group transformations, which are then solved numerically, usually using a digital computer. This is the most exciting aspect of the renormalization group, the part of the theory that makes it possible to solve problems which are unreachable by s. The Kondo problem has been solved by a nondiagrammatic computer method."
"The first efforts to turn quantum field theory into a rigorous mathematical subject occurred in the 1950s, when Wightman in particular formulated a set of axioms which define what we mean by a relativistic quantum field theory ... The subject took a significant step forward around 1970 largely through the work of Ken Wilson, who taught us to think of quantum field theory as a kind of second-order phase transition ... The Standard Model of particle physics was also formulated in the 1970s, and still stands as our best description of the strong and electroweak interactions after decades of thorough vetting in high-energy-physics experiments. ... Ken Wilson is a hero to me and many others because he provided a satisfying answer to the question: What is quantum field theory? (His was not the first answer, nor was it the complete and final answer, but nevertheless it transformed our understanding of the subject.) Wilson understood more deeply than his predecessors the meaning of renormalization."
"Ken Wilson was one of a very small number of physicists who changed the way we all think, not just about specific phenomena, but about a vast range of different phenomena."
"Asymptotic freedom arises as follows. The fundamental interactions of quarks and gluons are modified by “radiative” corrections of higher order in the quark-gluon coupling constant. These radiative corrections depend on the quark and gluon momenta. A careful analysis shows that the cumulative effect of radiative corrections to all orders can be characterized by a momentum-dependent effective coupling constant. The effective coupling is found to vanish in the limit of large momenta (to be precise, large momentum transfers between the quarks and gluons). This is called asymptotic freedom. As a result of asymptotic freedom the quarks can behave as nearly free particles at short distances; this is required to explain the high energy electron scattering experiments ... Meanwhile the interactions of quarks at long distances can be strong enough to bind the quarks into the observed bound states; protons, mesons, etc."
"Sometime toward the end of my second year, I started working with Gell-Mann. I went to Gell-Mann and he gave me a problem to work on and suggested I start working with fixed source theory of K-particles, where he wanted me to do things involving strong and weak interactions. And it's when I read about fixed source theory that I began to learn about renormalization group and realized it could be applied to fixed source theory, and I don't know whether there were papers that I read about renormalization group and fixed source theory, or I worked it out for myself, but in playing around with this, sort of trying to learn what was going on, I discovered that there were great simplifications that took place when you took the fixed source equation and took them to high energies, and when you did a leading log approximation. In the end, I discovered that those equations, simplified at the high energies -- you could get exact solutions. That was part of my thesis. And that was the initial thing that sparked my interest in the renormalization group. I remember when I presented my thesis to a seminar, and this was when Feynman was there, but not Gell-Mann. I went through all this exciting mathematics and toward the end, someone said, "Yes, that's fine, but what good is it?" I remember Feynman's answer as "Don't look a gift horse in the mouth!""
"At the other end of the spectrum are stories that it's too late, that it's all over, that there's nothing left to do. Misinterpretations of the data lead some to declare that the Earth itself is going to die or human beings are going to die out in the near future, stories that clash with what the evidence tells us. They make people feel terrible, and they make them passive. Doomism, as climate scientist Michael Mann calls it, becomes a self-fulfilling prophecy if it prevents the action that can shift us away from the worst-case scenarios."
"this vision could have been built into the global trade architecture that would rise up in the early to mid-1990s. If we had continued to reduce our emissions at that pace we would have been on track for a completely de-carbonized global economy by mid-century. But we didn't do any of those things. And as the famed climate scientist Michael Mann, director of the Penn State Earth System Science Center, puts it, "There's a huge procrastination penalty when it comes to emitting carbon into the atmosphere": the longer we wait, the more it builds up, the more dramatically we must change to reduce the risks of catastrophic warming."
"...If we fail to act to bring down our carbon emissions over the next decade, this will lock in disastrous melting of the ice sheets, sea level rise, and a rise in devastating weather extremes down the road. (2019)"
""There's no question that climate change has increased the frequency of certain types of extreme weather events," climate scientist Michael Mann told me in an interview, "including drought, intense hurricanes, and supertyphoons, the frequency and intensity and duration of heat waves, and potentially other types of extreme weather though the details are still being debated within the scientific community.'"
"According to , “Professor Mike Mann has been a world leader in scientific efforts to understand the natural variability of the climate system and to reconstruct global temperature variations over the past two millennia. This critically important work led to the famous 'hockey-stick' temperature reconstruction. The hockey stick provides compelling evidence for the emergence of a human-caused warming signal from the background noise of natural fluctuations in climate.”"
"String theory is an ambitious approach to the construction of a mathematical description of the physics that governs the properties of elementary particls and their interactions as well as the structure of space and time. It incorporates (and maybe even explains) well-established principles such as quantum mechanics and relativity. In fact, many string theorists (myself included) believe that string theory constitutes the third big physics revolution of the century, following relativity and quantum mechanics. It certainly requires conceptual advances every bit as bizarre and unexpected as was the case in the prior two revolutions."
"As I once told a newspaper reporter, in order to be sure to be quoted: discovery of supersymmetry would be more profound than life on Mars."
"Supergravity theories generically contain non-compact global symmetry groups. The general rule is that the scalar fields of the theory in question parametrize a symmetric space. Thus, if the non-compact symmetry group is G, and its maximal compact subgroup is H, the scalar fields map the space-time into the symmetric space G/H, and the number of scalar fields is dim G – dim H. The first supergravity example of this type to be found, N = 4 supergravity is one of the most interesting. In this case there are two scalar fields and the symmetric space is SL(2,R)/SO(2)."
"In the early 1960s there existed a successful quantum theory of the electromagnetic force (QED), which was completed in the late 1940s, but the theories of the weak and strong nuclear forces were not yet known. In UC Berkeley, where I was a graduate student during the period 1962 – 66, the emphasis was on developing a theory of the strong nuclear force. I felt that UC Berkeley was the center of the Universe for high energy theory at the time. Geoffrey Chew (my thesis advisor) and Stanley Mandelstam were highly influential leaders. Also, Steve Weinberg and Shelly Glashow were impressive younger faculty members. David Gross was a contemporaneous Chew student with whom I shared an office."
"The second superstring revolution (1994-??) has brought non-perturbative string physics within reach. The key discoveries were the recognition of amazing and surprising "dualities." They have taught us that what we viewed previously as five theories is in fact five different perturbative expansions of a single underlying theory about five different points! It is now clear that there is a unique theory, though it may allow many different vacua. ... Three different kinds of dualities, called S, T, and U have been identified.""
"One of the facts of nature is that there is what's called parity violation, which means that the fundamental laws are not invariant under mirror reflection. For example, a neutrino always spins clockwise and not counterclockwise, so it would look wrong viewed in a mirror. When you try to write down a fundamental theory with parity violation, mathematical inconsistencies often arise when you take account of quantum effects. This is referred to as the anomaly problem. It appeared that one couldn't make a theory based on strings without encountering these anomalies, which, if that were the case, would mean strings couldn't give a realistic theory. Green and I discovered that these anomalies cancel one another in very special situations. When we released our results in 1984, the field exploded. That's when Edward Witten [a theoretical physicist at the Institute for Advanced Study in Princeton], probably the most influential theoretical physicist in the world, got interested. Witten and three collaborators wrote a paper early in 1985 making a particular proposal for what to do with the six extra dimensions, the ones other than the four for space and time. That proposal looked, at the time, as if it could give a theory that is quite realistic. These developments, together with the discovery of another version of superstring theory, constituted the first superstring revolution."
"Among the problems of the known string theories, as a theory of hadrons, was the fact that the spectrum of open strings contains massless spin 1 particles, and the spectrum of closed strings contains a massless spin 2 particle (as well as other massless particles), but there are no massless hadrons. In 1974, Joël Scherk and I decided to take string theory seriously as it stood, rather than forcing it to conform to our preconceptions. ... Specifically, Scherk and Schwarz (1974) proposed trying to interpret string theory as a unified quantum theory of all forces including gravity. Neveu and Scherk (1972) had shown that string theory incorporates the correct gauge invariances to ensure agreement at low energies (compared to the scale given by the string tension) with Yang-Mills theory. Yoneya (1973,1974) and Scherk and Schwarz (1974) showed that it also contains gauge invariances that ensure agreement at low energies with general relativity."
Heute, am 12. Tag schlagen wir unser Lager in einem sehr merkwürdig geformten Höhleneingang auf. Wir sind von den Strapazen der letzten Tage sehr erschöpft, das Abenteuer an dem großen Wasserfall steckt uns noch allen in den Knochen. Wir bereiten uns daher nur ein kurzes Abendmahl und ziehen uns in unsere Kalebassen-Zelte zurück. Dr. Zwitlako kann es allerdings nicht lassen, noch einige Vermessungen vorzunehmen. 2. Aug.
- Das Tagebuch
Es gab sie, mein Lieber, es gab sie! Dieses Tagebuch beweist es. Es berichtet von rätselhaften Entdeckungen, die unsere Ahnen vor langer, langer Zeit während einer Expedition gemacht haben. Leider fehlt der größte Teil des Buches, uns sind nur 5 Seiten geblieben.
Also gibt es sie doch, die sagenumwobenen Riesen?
Weil ich so nen Rosenkohl nicht dulde!
- Zwei auĂźer Rand und Band
Und ich bin sauer!