background preloader

100 Ideas

100 Ideas
Related:  Leseliste

5 Great Icebreakers from Post-it® Notes Socializing, no matter how well intended, can be a little awkward. But no matter if you’re at a sales meeting or a block party, it’s nice to know to whom you are talking. Use one or a mix of these five games to break the ice and get to know each other a little better. Each person in the meeting gets 3 Post-it® Notes. Before the meeting, ask everyone to email you where they’re from. Have each participant write their name on a Post-it® Arrow Flag. The purpose of this icebreaker is two-fold: get people to reveal something about themselves you might never get to know and to marvel at their artistry, or lack thereof. Each participant gets a sheet from a Post-it® Big Pad to draw themselves doing something they love outside of work. Each member of the group picks a famous, well-known person and writes it on a Post-it® Note. Taking turns, everyone with a Post-it® Note asks the group questions to determine who they are. Am I male?

Tests of general relativity The very strong gravitational fields that must be present close to black holes, especially those supermassive black holes which are thought to power active galactic nuclei and the more active quasars, belong to a field of intense active research. Observations of these quasars and active galactic nuclei are difficult, and interpretation of the observations is heavily dependent upon astrophysical models other than general relativity or competing fundamental theories of gravitation, but they are qualitatively consistent with the black hole concept as modelled in general relativity. As a consequence of the equivalence principle, Lorentz invariance holds locally in freely falling reference frames. Experiments related to Lorentz invariance and thus special relativity (i.e., when gravitational effects can be neglected) are described in Tests of special relativity. Classical tests[edit] The chief attraction of the theory lies in its logical completeness. Perihelion precession of Mercury[edit]

30 Challenges for 30 Days Did you know that it takes 30 days to form a new habit? The first few days are similar as to how you would imagine the birth of a new river. Full of enthusiasm it gushes forth, only to be met by strong obstacles. The path is not clear yet, and your surroundings don’t agree. Old habits urge you to stay the same. But you need to stay determined. So, take a moment to reflect on the question ‘Who do I want to be in 5 years?’ Check out this short TED talk first to get inspired: Now pick one or more challenges and stick with them! However, be cautioned, picking too many challenges at the same time can easily result in a failure of all of them. #1 Write a I-Like-This-About-You note/text/email each day for someone (Easy) This is the perfect way to let someone else know you care. #2 Talk to one stranger each day (Hard) This is a great one to cure approaching anxiety. #3 Take one picture each day (Hard) #4 Re-evaluate one long-held belief each day (Intermediate) Do you love yourself? We recommend:

Graviton Theory[edit] The three other known forces of nature are mediated by elementary particles: electromagnetism by the photon, the strong interaction by the gluons, and the weak interaction by the W and Z bosons. The hypothesis is that the gravitational interaction is likewise mediated by an – as yet undiscovered – elementary particle, dubbed as the graviton. In the classical limit, the theory would reduce to general relativity and conform to Newton's law of gravitation in the weak-field limit.[6][7][8] Gravitons and renormalization[edit] When describing graviton interactions, the classical theory (i.e., the tree diagrams) and semiclassical corrections (one-loop diagrams) behave normally, but Feynman diagrams with two (or more) loops lead to ultraviolet divergences; that is, infinite results that cannot be removed because the quantized general relativity is not renormalizable, unlike quantum electrodynamics. Comparison with other forces[edit] Gravitons in speculative theories[edit] See also[edit]

Креативных штуковин пост Rest In Peace: 2 в одном, коробка и инструкция: Кресло "брызги шампанского". Или чего-то ещё: Подушка сисадминская, для крепкого сна: Для фуршетов: Кофе + разминка: Лёд для коктейлей: Малогабаритное: Теперь ткань можно не только порезать, но и избить: Тюнинг шлемов для введения гаишников в заблуждение: Будильник-паззл, пока не соберёшь - не выключится: Бесполезно, но красиво - телефон в стиле "иконки": Аватар 3D. Скотч, просто скотч. Эти пазы - для наматывания пакетика. Противоугонный велосипед: Фитнесс для мозга: Ещё одна бесполезная, но прикольная идея: Весы-диетолог: Зонтик с бутылкой: Странная идея, учитывая, что дождь в наше время - не очень чистая штука. Купальная шапочка с имитацией: Бумажные салфетки и немного магии: Карандаши с поддержкой режима "зажать между носом и верхней губой": Настольный светильник своими руками: Вино на розлив в одноразовых бокалах: Кресло-качалка-лежалка-сиделка: И в финале - "модная еда".

Fundamental interaction Fundamental interactions, also called fundamental forces or interactive forces, are modeled in fundamental physics as patterns of relations in physical systems, evolving over time, that appear not reducible to relations among entities more basic. Four fundamental interactions are conventionally recognized: gravitational, electromagnetic, strong nuclear, and weak nuclear. Everyday phenomena of human experience are mediated via gravitation and electromagnetism. The strong interaction, synthesizing chemical elements via nuclear fusion within stars, holds together the atom's nucleus, and is released during an atomic bomb's detonation. The weak interaction is involved in radioactive decay. In modern physics, gravitation is the only fundamental interaction still modeled as classical/continuous (versus quantum/discrete). Beyond the Standard Model, some theorists work to unite the electroweak and strong interactions within a Grand Unified Theory (GUT). The interactions[edit] Gravitation[edit]

1001 rules for my unborn son Gravity Probe B - Special & General Relativity Questions and Answers It is true that, given enough energy, you could be propelled so fast that 1 year back home would pass for you in a few minutes; a ride across the Milky Way covering 100,000 light years could be done in a few seconds; or even a ride across the visible universe of 14 billion light years could be done in a second or less...given an ultimate source of power to get you to those speeds. For a photon, or any other particle traveling at ESSENTIALLY the speed of light, any arbitrarily long distance could be traversed in less than a second....but eternity is different. For you to get boosted to a speed where 'eternity would pass in an instant' you would travel essentially an infinite distance, and the energy you would need to accelerate you would be infinite as well. For a photon, it is a completely meaningless exercise to ask how fast time passes for a photon, and in some sense in the 'rest frame' of such a massless particle, time is meaningless. All answers are provided by Dr.

30+ Pieces of Inspiring, Funny and Interesting Advice Everyday, as I scour the web looking for interesting things to post about, I run across a few of these pictures. They're signs or little pieces of advice that pop up like presents on the screen. These life lessons remind me to stop and enjoy life. The remind me to step away, ask me to change my perspective or give me reason to laugh. What I love most about these signs, though, is that they touch each person in a different way. Though we're all connected and though we often share similar interests, it is our life experiences that will ultimately draw out a different emotion from each of us. Here, I've compiled over 30 of my favorite signs or posters. Also, check out30+ Pieces of Inspiring, Funny and Interesting Advice, Part II! If you have some of your own, please share them with us in the comments section! Which one is your favorite? Related:Simple Sayings, Complex Meanings By ExplodingDog (12 Total)

Vis-viva equation Vis viva (Latin for "live force") is a term from the history of mechanics, and it survives in this sole context. It represents the principle that the difference between the aggregate work of the accelerating forces of a system and that of the retarding forces is equal to one half the vis viva accumulated or lost in the system while the work is being done. Vis viva equation[edit] For any Kepler orbit (elliptic, parabolic, hyperbolic or radial), the vis viva equation[1] is as follows: where: v is the relative speed of the two bodiesr is the distance between the two bodiesa is the semi-major axis (a > 0 for ellipses, a = ∞ or 1/a = 0 for parabolas, and a < 0 for hyperbolas)G is the gravitational constantM is the mass of the central body Note - the product of GM can also be expressed as the Greek letter μ. Derivation[edit] In the vis-viva equation the mass m of the orbiting body (e.g., a spacecraft) is taken to be negligible in comparison to the mass M of the central body (e.g., the Earth). Thus,

Secret Archives | Post Secret Archive - Part 5 Mar 26 Tweet Versa: But I am still crazy about her. I’m afraid Jan 8 My parents think I am checking my email when I’m reading online erotica. I really enjoy funerals. I believe my dead grandmother watches me with great disappointment every time I masturbate. Do you have a secret to tell? Jan 7 Tensor Cauchy stress tensor, a second-order tensor. The tensor's components, in a three-dimensional Cartesian coordinate system, form the matrix whose columns are the stresses (forces per unit area) acting on the e1, e2, and e3 faces of the cube. Tensors are used to represent correspondences between sets of geometric vectors. Because they express a relationship between vectors, tensors themselves must be independent of a particular choice of coordinate system. Tensors are important in physics because they provide a concise mathematical framework for formulating and solving physics problems in areas such as elasticity, fluid mechanics, and general relativity. Definition[edit] There are several approaches to defining tensors. As multidimensional arrays[edit] Just as a scalar is described by a single number, and a vector with respect to a given basis is described by an array of one dimension, any tensor with respect to a basis is described by a multidimensional array. as, Definition. . Examples[edit]

Related: