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Groupe de Fitness

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Demian Tretyakov
Demian Tretyakov

Just An Observation

Strange as it may sound, interference can only occur when no one is watching. Once an observer begins to watch the particles going through the openings, the picture changes dramatically: if a particle can be seen going through one opening, then it's clear it didn't go through another. In other words, when under observation, electrons are being "forced" to behave like particles and not like waves. Thus the mere act of observation affects the experimental findings.

Just an Observation…

Apart from "observing," or detecting, the electrons, the detector had no effect on the current. Yet the scientists found that the very presence of the detector-"observer" near one of the openings caused changes in the interference pattern of the electron waves passing through the openings of the barrier. In fact, this effect was dependent on the "amount" of the observation: when the "observer's" capacity to detect electrons increased, in other words, when the level of the observation went up, the interference weakened; in contrast, when its capacity to detect electrons was reduced, in other words, when the observation slackened, the interference increased.

The experiment's finding that observation tends to kill interference may be used in tomorrow's technology to ensure the secrecy of information transfer. This can be accomplished if information is encoded in such a way that the interference of multiple electron paths is needed to decipher it. "The presence of an eavesdropper, who is an observer, although an unwanted one, would kill the interference," says Prof. Heiblum. "This would let the recipient know that the message has been intercepted."

The UN generally offers excellent access to webcast, audio, video or both, as do other organisations and bodies. This offers remote access, which, when combined with captioning, includes some of those with disabilities, as well as those who are not present. However, this is not remote participation. This is remote access: remote observation.

Now optical interferometry data from the GRAVITY instrument on the VLT have provided 10 times the resolution of previous observations, allowing a much more detailed analysis of the planet's spectrum - which reveals its chemical composition.

Based on previous observations, HR 8799e is quite chunky - between five and 10 times the mass of Jupiter. It orbits its star at about 14.5 astronomical units (AU) - compared to the Solar System that would be about mid-way between the orbits of Saturn and Uranus.

The team is planning long-term follow-up observations with GRAVITY to try to trace out with even greater accuracy the exoplanet's orbit, revealing the gravitational effects the star and planet have on each other, along with the rest of the system.

Often observation involves a conscious or unconscious linking to something that we already know, which brings us to an interesting point on how our experiences impact what we deem significant or not. Our experiences filter what we see.

When we are a novice at something, all observations are unexpected and worthy of our attention but as we learn more about a field we become more discerning about that which we consider important and noteworthy. The same holds true in life.

Powers of observation can be developed by cultivating the habit of watching things with an active, enquiring mind. It is no exaggeration to say that well developed habits of observation are more important in research than large accumulations of academic learning.

Training in observation follows the same principles as training in any activity. At first one must do things consciously and laboriously, but with practice the activities gradually become automatic and unconscious and a habit is established. Effective scientific observation also requires a good background, for only by being familiar with the usual can we notice something as being unusual or unexplained.

Correction: Scientists build knowledge through a complex process that involves coming up with ideas about how things work and then seeing if observations back those explanations up. Read more about it.

Observations inspire, lend support to, and help refute scientific hypotheses and theories. However, theories and hypotheses (the fundamental structures of scientific knowledge) cannot be directly read off of nature. A falling ball (no matter how detailed our observations of it may be) does not directly tell us how gravity works, and collecting observations of all the different finch species of the Galapagos Islands does not directly tell us how their beaks evolved. Scientific knowledge is built as people come up with hypotheses and theories, repeatedly test them against observations of the natural world, and continue to refine those explanations based on new ideas and observations. Observations are essential to the process of science, but they are only part of the picture.

When the structure of DNA was unraveled, scientists had no microscopes powerful enough to look into the molecule. Instead they relied on indirect observation and X-ray crystallography. Learn the whole story behind this important discovery in The structure of DNA: Cooperation and competition.

Since then, observation decks have become even higher and more dramatic. However, much of the conversation has been about the design of the building and the view it delivered. Those things still draw millions of people each year to the likes of the CN Tower, Empire State Building and the Shard. But some innovative minds behind some well-known observation decks are refocusing efforts inside, creating rich and immersive experiences to educate, entertain and inspire.

This technology has multiple types, including digital signage and interactive video walls. They are most useful as connectors between the guest and the experience, allowing them to become part of it, just like the Dress for the Fest exhibit and the Unity experience. They take the static and turn it into something more captivating. Plus, these displays are dynamic, enabling the change of content to refresh.

This technique turns any object into a display surface for video. That makes it ideal for observation decks, which are rarely just four walls. It enables a story canvas to emerge in unexpected places.

We arrived on sat 1-21 and were quite happy to finally be back in (ta && ta.queueForLoad ? ta.queueForLoad : function(f, g)document.addEventListener('DOMContentLoaded', f);)(function()ta.trackEventOnPage('postLinkInline', 'impression', 'postLinks-38430780', '');, 'log_autolink_impression');Aruba after 13 years away. I had reserved a car through Alamo, which is super convenient being right outside the airport, and made our way to pick it up a bit ahead of my scheduled pick up time. I was met at the Alamo counter by two of the most unhappy, unfriendly people I have ever met in all of my trips to Aruba. I gave them the benefit of the doubt and thought they were just having a bad day. The following Saturday we were returning the car and the same two sourpusses were there- as grouchy as ever! Uncomfortably unhappy, and other renters were commenting on it as well, because at first I thought they just hated the lady with the kids. The car was great, no complaints, but gosh, how unfortunate to be that miserable in such a beautiful place.

funny that you had the same experience as we did last July. I rented two (ta && ta.queueForLoad ? ta.queueForLoad : function(f, g)document.addEventListener('DOMContentLoaded', f);)(function()ta.trackEventOnPage('postLinkInline', 'impression', 'postLinks-40815494', '');, 'log_autolink_impression');cars for my family. the cars were fine but the service and attitudes that I received from two ladies (must be the same two) were unbelievable in such a wonderful place. We just got off the plane and went across to the alamo station out in front of the airport. These two ladies acted like they were mad at the world and hated to be there. They snapped at me when I questioned the bill (it was only off or 4 dollars from my receipt that I had brought with me). We have been renting from alamo aruba for over 10 years (2weeks each year) but the last two have been a unbelievable, very grouchy and unhappy service. Just can't wait to see what happens this year. We do try to always rent alamo but I am starting to wonder why?

Just changed to Budget for our trip next month after reading some of the other posts-so it wasn't just me imagining issues with Alamo. I tried to book with Hans 6 month ago but he was sold out! Will try earlier for him next time!

Over the years, I have certainly had my fair share of observations, but my most positive observation came during my first year of teaching. In fact, that first observation was the best and most significant feedback of my entire career.

Heading into the meeting about my observation later that day, I expected to hear all the ways I could do better. As a first-year teacher, I fully anticipated nothing but gentle criticism, and I was trying to think of all the ways I could nod, smile, and graciously accept the fact that my teaching skills were subpar.

Frankly, I think bird and cactus identifiers have too much free time when they are searching for research grade observations and adding unnecessary agreements. Meanwhile, there are honey bees, easily identified to species, sitting at Hymenoptera for 6+ years.

While I agree with others above that eye catching photos attract more agreements there are others reasons for people to agree with RG observations. Firstly, there are beginners who are learning a species or genus by going through as many examples as possible. They just do a search for species A and go through many images. While they are doing so they might as well click agree if they are sure.

Most extreme observations are nothing but the adjacent values of the data set which are not potential outliers and whenever data set will have no potential outliers then adjacent values are the minimum and maximum observations otherwise it will depend on the potential outliers and lower limit and upper limit.

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