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Martin Burrett

Copy - 78 views

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    More and more people are throwing away their USB memory sticks (but probably just losing them down the back of the sofa) in favour of cloud storage. This is a wonderful storage site, download and multi-platform app which is very similar to Dropbox. A synced folder sits on you devices and can be updated and accessed from any device. You can generating a url to share folders or files with other people. It works just fine on a computer with Dropbox already installed and the free account gives you 15GB of storage. That's enough storage where 'tidy' filing schools might begin to migrate their school network storage to the cloud for free - and that's exciting. Additional storage is available for a price. http://ictmagic.wikispaces.com/ICT+%26+Web+Tools
Martin Burrett

Copy - 38 views

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    More and more people are throwing away their USB memory sticks (but probably just losing them down the back of the sofa) in favour of cloud storage. This is a wonderful storage site, download and multi-platform app which is very similar to Dropbox. A synced folder sits on you devices and can be updated and accessed from any device. You can generating a url to share folders or files with other people. It works just fine on a computer with Dropbox already installed and the free account gives you 15GB of storage. That's enough storage where 'tidy' filing schools might begin to migrate their school network storage to the cloud for free - and that's exciting. Additional storage is available for a price.
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    Hi Martin, I really like your explanation of cloud storage. I have an account with Cloud and it's one service out of many that is in my cloud storage portfolio. Take care, Tony
Misha Miller

Using Groups Effectively: 10 Principles » Edurati Review - 50 views

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    "Conversation is key . Sawyer succinctly explains this principle: "Conversation leads to flow, and flow leads to creativity." When having students work in groups, consider what will spark rich conversation. The original researcher on flow, Mihaly Csikszentmihalyi, found that rich conversation precedes and ignites flow more than any other activity.1 Tasks that require (or force) interaction lead to richer collaborative conceptualization. Set a clear but open-ended goal . Groups produce the richest ideas when they have a goal that will focus their interaction but also has fluid enough boundaries to allow for creativity. This is a challenge we often overlook. As teachers, we often have an idea of what a group's final product should look like (or sound like, or…). If we put students into groups to produce a predetermined outcome, we prevent creative thinking from finding an entry point. Try not announcing time limits. As teachers we often use a time limit as a "motivator" that we hope will keep group work focused. In reality, this may be a major detractor from quality group work. Deadlines, according to Sawyer, tend to impede flow and produce lower quality results. Groups produce their best work in low-pressure situations. Without a need to "keep one eye on the clock," the group's focus can be fully given to the task. Do not appoint a group "leader." In research studies, supervisors, or group leaders, tend to subvert flow unless they participate as an equal, listening and allowing the group's thoughts and decisions to guide the interaction. Keep it small. Groups with the minimum number of members that are needed to accomplish a task are more efficient and effective. Consider weaving together individual and group work. For additive tasks-tasks in whicha group is expectedtoproduce a list, adding one idea to another-research suggests that better results develop
Lisa C. Hurst

Inside the School Silicon Valley Thinks Will Save Education | WIRED - 9 views

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    "AUTHOR: ISSIE LAPOWSKY. ISSIE LAPOWSKY DATE OF PUBLICATION: 05.04.15. 05.04.15 TIME OF PUBLICATION: 7:00 AM. 7:00 AM INSIDE THE SCHOOL SILICON VALLEY THINKS WILL SAVE EDUCATION Click to Open Overlay Gallery Students in the youngest class at the Fort Mason AltSchool help their teacher, Jennifer Aguilar, compile a list of what they know and what they want to know about butterflies. CHRISTIE HEMM KLOK/WIRED SO YOU'RE A parent, thinking about sending your 7-year-old to this rogue startup of a school you heard about from your friend's neighbor's sister. It's prospective parent information day, and you make the trek to San Francisco's South of Market neighborhood. You walk up to the second floor of the school, file into a glass-walled conference room overlooking a classroom, and take a seat alongside dozens of other parents who, like you, feel that public schools-with their endless bubble-filled tests, 38-kid classrooms, and antiquated approach to learning-just aren't cutting it. At the same time, you're thinking: this school is kind of weird. On one side of the glass is a cheery little scene, with two teachers leading two different middle school lessons on opposite ends of the room. But on the other side is something altogether unusual: an airy and open office with vaulted ceilings, sunlight streaming onto low-slung couches, and rows of hoodie-wearing employees typing away on their computers while munching on free snacks from the kitchen. And while you can't quite be sure, you think that might be a robot on wheels roaming about. Then there's the guy who's standing at the front of the conference room, the school's founder. Dressed in the San Francisco standard issue t-shirt and jeans, he's unlike any school administrator you've ever met. But the more he talks about how this school uses technology to enhance and individualize education, the more you start to like what he has to say. And so, if you are truly fed up with the school stat
Martin Burrett

Maths Charts - 104 views

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    A great new resource from the creator of 'A Maths Dictionary for Kids'. Download and print beautifully designed and wonderfully useful maths posters on a good range of topics. Your classroom walls will never be the same again. http://ictmagic.wikispaces.com/Maths
John Christopher

Adobe Education Exchange - 49 views

    • John Christopher
       
      This is probably the best Education Community I have been apart of. There are really great lesson plans from educators all over the world. In addition, there are outstanding professional development opportunities to learn all about Adobe products.
Kenuvis Romero

Psilocybin (magic mushrooms) - 0 views

  • The biosinthetic path that allow Psilocybin to be produced by mushrooms is as follow:
  • The several analogyes with triptophan aminoacid, with whom psilocybin has common origines are probably at the base of psilocybin ability to induced psychedelich alteration on humans.
  • Amino acids, including tryptophan, act as building blocks in protein biosynthesis. In addition, tryptophan functions as a biochemical precursor for many compounds like serotonin Serotonin (a neurotransmitter), synthesized via tryptophan hydroxylase. Serotonin, in turn, can be converted to melatonin (a neurohormone), via N-acetyltransferase and 5-hydroxyindole-O-methyltransferase activities
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  • it's been noticed that psilocyn can indirectly raise dopamine concentration withing the basal ganglia.
  • Almost 50% of oral psilocybin is absorbed by stomach and gut; from here is lead to liver, where it's converted in psilocin, pharmacologically active form, that can furtherly be glucoronated and escreted with urine or converted in other psilocinics metabolites.
  • In rats, the median lethal dose (LD50) when administered orally is 280 milligrams per kilogram (mg/kg), approximately one and a half times that of caffeine. When administered intravenously in rabbits, psilocybin's LD50 is approximately 12.5 mg/kg
  • traces of the compund can be detected in unine even after 7 days.
  • Clinical studies show that psilocin concentrations in the plasma of adults average about 8 µg/liter within 2 hours after ingestion of a single 15 mg oral psilocybin dose; psychological effects occur with a blood plasma concentration of 4–6 µg/liter. Psilocybin is about 100 times less potent than LSD on a weight per weight basis, and the physiological effects last about half as long.
  • Within 24 hours from administration 65% of the alucinogen is escreted by urine, while another 15-20% is excreted by bile and feces.
  • Monoamine oxidase inhibitors (MAOI) have been known to prolong and enhance the effects of psilocybin. Alcohol consumption may enhance the effects of psilocybin, because acetaldehyde, one of the primary breakdown metabolites of consumed alcohol, reacts with biogenic amines present in the body to produce MAOIs related to tetrahydroisoquinoline and β-carboline. Tobacco smokers can also experience more powerful effects with psilocybin, because tobacco smoke exposure decreases levels of MAO in the brain and peripheral organs.
  • This could lead to a lower usage o f glucose, but the same study admitted an increase glucose usage by the whole brain cell, meaning a differente use of this sugar while the drug is having effects.
  • use of MRI (functional magnetic resounance) showed that the decresed blood flow associate with decreasing in neural activity. A simple explanation for this unexpected situation could be the serotoning agonist action of psilocybin, action that seems to be focused more on 5-HT receptors than on 5-HT2A.
  • psilocibyn is able to act as a 5-HT agonist binding directly its receptors.
  • augmented glucose consumption in several brain regions; this lead to the conclusion that psilocybin is some way able to modify the physiological glucosal metabolic rate of our body
  • The strong inibition of the PCC is now thought to be most significant action of psilocybin on neural disaccoppiation
    • Kenuvis Romero
       
      Lower brain glucose metabolism is linked with increased capacity for working memory.
  • Psilocybin comprises approximately 1% of the weight of Psilocybe cubensis mushrooms, and so nearly 1.7 kilograms (3.7 lb) of dried mushrooms, or 17 kilograms (37 lb) of fresh mushrooms, would be required for a 60-kilogram (130 lb) person to reach the 280 mg/kg LD50 value.
  • psilocybin can cause anxiety and increased heart rate and BP which is very counter- productive for someone on metoprolol and micardis.
  • propose the possibility to use psilocybin as a palliative therapy for terminal illness like cancer but also as a real antidepressive active principle available for the family of the patient. The rational is foundable in the fact that we usually administer SSRI as antidepressive agents, so psilocibyn sholud be useful in this purpose for its selective agonist action on 5-HT2A receptors
Marsh Feldman

Online Education - Introducing the Microlecture Format - Open Education - 4 views

  • in online education “tiny bursts can teach just as well as traditional lectures when paired with assignments and discussions.” The microlecture format begins with a podcast that introduces a few key terms or a critical concept, then immediately turns the learning environment over to the students.
  • “It’s a framework for knowledge excavation,” Penrose tells Shieh. “We’re going to show you where to dig, we’re going to tell you what you need to be looking for, and we’re going to oversee that process.”
  • It clearly will not work for a course that is designed to feature sustained classroom discussions. And while the concept will work well when an instructor wants to introduce smaller chunks of information, it will likely not work very well when the information is more complex.
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  • the microlecture format similarly requires teachers to get the key elements across in a very short amount of time. Most importantly, it forces educators to think in a new way.
  • 1. List the key concepts you are trying to convey in the 60-minute lecture. That series of phrases will form the core of your microlecture. 2. Write a 15 to 30-second introduction and conclusion. They will provide context for your key concepts. 3. Record these three elements using a microphone and Web camera. (The college information-technology department can provide advice and facilities.) If you want to produce an audio-only lecture, no Webcam is necessary. The finished product should be 60 seconds to three minutes long. 4. Design an assignment to follow the lecture that will direct students to readings or activities that allow them to explore the key concepts. Combined with a written assignment, that should allow students to learn the material. 5. Upload the video and assignment to your course-management software.
    • Marsh Feldman
       
      Good luck! Some of my (upper-division college) students don't even read the handouts I give them about assignments. Instead, they come during office hours and ask me to tell them how to do the assignment. When they do read things, like a textbook commonly used in 100-level courses, they misinterpret concepts through their own preconceptions. For example, the textbook says, "In this field there are these eight schools of thought: ...." So one student writes, "All eight schools are good ways to understand. There's no right way." (Even though each school is highly critical of the others.) The rest of the class comments, with things like "Good insight, Oscar." The textbook is about the field, so it doesn't go into any detail about the schools' criticisms ot the others. I can either tell the students or give them additional reading they probably won't do. Unless you can anticipate every student misunderstanding and have time for microlectures on every one of them, I think you'll need to do things the old fashioned way. At least this way you can make a valiant attempt at helping them understand the material correctly.
Benjamin Light

The Costs of Overemphasizing Achievement - 83 views

  • First, students tend to lose interest in whatever they’re learning. As motivation to get good grades goes up, motivation to explore ideas tends to go down. Second, students try to avoid challenging tasks whenever possible. More difficult assignments, after all, would be seen as an impediment to getting a top grade. Finally, the quality of students’ thinking is less impressive. One study after another shows that creativity and even long-term recall of facts are adversely affected by the use of traditional grades.
    • Deb White Groebner
       
      SO true!
    • Terie Engelbrecht
       
      Very true; especially the "avoiding challenging tasks" part.
  • Unhappily, assessment is sometimes driven by entirely different objectives--for example, to motivate students (with grades used as carrots and sticks to coerce them into working harder) or to sort students (the point being not to help everyone learn but to figure out who is better than whom)
  • Standardized tests often have the additional disadvantages of being (a) produced and scored far away from the classroom, (b) multiple choice in design (so students can’t generate answers or explain their thinking), (c) timed (so speed matters more than thoughtfulness) and (d) administered on a one-shot, high-anxiety basis.
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  • The test designers will probably toss out an item that most students manage to answer correctly.
  • the evidence suggests that five disturbing consequences are likely to accompany an obsession with standards and achievement:
  • 1. Students come to regard learning as a chore.
  • intrinsic motivation and extrinsic motivation tend to be inversely related: The more people are rewarded for doing something, the more they tend to lose interest in whatever they had to do to get the reward.
  • 2. Students try to avoid challenging tasks.
  • they’re just being rational. They have adapted to an environment where results, not intellectual exploration, are what count. When school systems use traditional grading systems--or, worse, when they add honor rolls and other incentives to enhance the significance of grades--they are unwittingly discouraging students from stretching themselves to see what they’re capable of doing.
  • 3. Students tend to think less deeply.
  • 4. Students may fall apart when they fail.
  • 5. Students value ability more than effort
    • Deb White Groebner
       
      This is the reinforcement of a "fixed mindset" (vs. (growth mindset) as described by Carol Dweck.
  • They seem to be fine as long as they are succeeding, but as soon as they hit a bump they may regard themselves as failures and act as though they’re helpless to do anything about it.
  • When the point isn’t to figure things out but to prove how good you are, it’s often hard to cope with being less than good.
  • It may be the systemic demand for high achievement that led him to become debilitated when he failed, even if the failure is only relative.
  • But even when better forms of assessment are used, perceptive observers realize that a student’s score is less important than why she thinks she got that score.
  • just smart
  • luck:
  • tried hard
  • task difficulty
  • It bodes well for the future
  • the punch line: When students are led to focus on how well they are performing in school, they tend to explain their performance not by how hard they tried but by how smart they are.
  • In their study of academically advanced students, for example, the more that teachers emphasized getting good grades, avoiding mistakes and keeping up with everyone else, the more the students tended to attribute poor performance to factors they thought were outside their control, such as a lack of ability.
  • When students are made to think constantly about how well they are doing, they are apt to explain the outcome in terms of who they are rather than how hard they tried.
  • And if children are encouraged to think of themselves as "smart" when they succeed, doing poorly on a subsequent task will bring down their achievement even though it doesn’t have that effect on other kids.
  • The upshot of all this is that beliefs about intelligence and about the causes of one’s own success and failure matter a lot. They often make more of a difference than how confident students are or what they’re truly capable of doing or how they did on last week’s exam. If, like the cheerleaders for tougher standards, we look only at the bottom line, only at the test scores and grades, we’ll end up overlooking the ways that students make sense of those results.
  • the problem with tests is not limited to their content.
  • if too big a deal is made about how students did, thus leading them (and their teachers) to think less about learning and more about test outcomes.
  • As Martin Maehr and Carol Midgley at the University of Michigan have concluded, "An overemphasis on assessment can actually undermine the pursuit of excellence."
  • Only now and then does it make sense for the teacher to help them attend to how successful they’ve been and how they can improve. On those occasions, the assessment can and should be done without the use of traditional grades and standardized tests. But most of the time, students should be immersed in learning.
  • the findings of the Colorado experiment make perfect sense: The more teachers are thinking about test results and "raising the bar," the less well the students actually perform--to say nothing of how their enthusiasm for learning is apt to wane.
  • The underlying problem concerns a fundamental distinction that has been at the center of some work in educational psychology for a couple of decades now. It is the difference between focusing on how well you’re doing something and focusing on what you’re doing.
  • The two orientations aren’t mutually exclusive, of course, but in practice they feel different and lead to different behaviors.
  • But when we get carried away with results, we wind up, paradoxically, with results that are less than ideal.
  • Unfortunately, common sense is in short supply today because assessment has come to dominate the whole educational process. Worse, the purposes and design of the most common forms of assessment--both within classrooms and across schools--often lead to disastrous consequences.
  • grades, which by their very nature undermine learning. The proper occasion for outrage is not that too many students are getting A’s, but that too many students have been led to believe that getting A’s is the point of going to school.
  • research indicates that the use of traditional letter or number grades is reliably associated with three consequences.
  • Iowa and Comprehensive Tests of Basic Skills,
    • Benjamin Light
       
      I wonder how the MAP test is set?
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    The message of Daniel Pinks book "Drive" applies here. Paying someone more, i.e. good grades, does not make them better thinkers, problems solvers, or general more motivated in what they are doing. thanks for sharing.
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    Excellent summary!
Martin Burrett

http://www.mathsmaster.org/ - 76 views

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    A great maths video tutorial site that covers all the basics. Great to use for extra support or home study guides. http://ictmagic.wikispaces.com/Maths
Martin Burrett

Virtual Dice - 57 views

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    A great set of dice. Choose from one, two or three six-sided dice. You can also get one with + or - with one normal die. http://ictmagic.wikispaces.com/Maths
Martin Burrett

Count Us In Maths Games - 59 views

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    A collection of 15 games for younger learners about various maths topics. http://ictmagic.wikispaces.com/Maths
Anja Lehmann

How is math involved with soccer? - Yahoo! Answers - 36 views

    • Anja Lehmann
       
      regression to calculate strategies
  • - Team Salary (Similar to marketing, each soccer club must determine "ahead of time", how much they will pay each player. The base salary is determined by calculating the expected value of future revenue generated by each individual player with 90% confidence; that is to say, only 10% risk. The remaining 10% risk is not given to the player in the form of base salary, but rather as bonus incentives. "If you score so many goals, or the total games played win % is higher than X%", then a reward is given in the form of additional money. In either case, the job of a Statistician or in this case; Accountant, is to determine the probability of each player's expected preformance; then, the expected change in revenue due to such preformance; determine the risk the soccer club is willing to bear for such preformance; and then determine a fair compensation amount to each individual player.)
    • Anja Lehmann
       
      Expected value and confidence interval to calculate wages in football
Martin Burrett

Math Worksheets - 99 views

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    A superb site to find a vast collection of maths worksheets for the whole of the curriculum. Answer keys are supplied for easy marking. http://ictmagic.wikispaces.com/Maths
Gareth Jones

Looking in the Wrong Places | Edge.org - 5 views

  • We should be very careful in thinking about whether we’re working on the right problems. If we don’t, that ties into the problem that we don’t have experimental evidence that could move us forward. We're trying to develop theories that we use to find out which are good experiments to make, and these are the experiments that we build.   We build particle detectors and try to find dark matter; we build larger colliders in the hope of producing new particles; we shoot satellites into orbit and try to look back into the early universe, and we do that because we hope there’s something new to find there. We think there is because we have some idea from the theories that we’ve been working on that this would be something good to probe. If we are working with the wrong theories, we are making the wrong extrapolations, we have the wrong expectations, we make the wrong experiments, and then we don’t get any new data. We have no guidance to develop these theories. So, it’s a chicken and egg problem. We have to break the cycle. I don’t have a miracle cure to these problems. These are hard problems. It’s not clear what a good theory is to develop. I’m not any wiser than all the other 20,000 people in the field.
  • I’m still asking myself the same question that I asked myself ten years ago: "What is going on in my community?" I work in the foundations of physics, and I see a lot of strange things happening there. When I look at the papers that are being published, many of them seem to be produced simply because papers have to be produced. They don’t move us forward in any significant way. I get the impression that people are working on them not so much because it’s what they’re interested in but because they have to produce outcomes in a short amount of time. They sit on short-term positions and have short-term contracts, and papers must be produced.
  • The field that I mostly work in is the foundations of physics, which is, roughly speaking, composed of cosmology, the foundations of quantum mechanics, high-energy particle physics, and quantum gravity. It’s a peculiar field because there hasn’t been new data for almost four decades, since we established the Standard Model of particle physics. There has been, of course, the Higgs particle that was discovered at the LHC in 2012, and there have been some additions to the Standard Model, but there has not been a great new paradigm change, as Kuhn would have put it. We’re still using the same techniques, and we’re still working with the same theories as we did in the 1970s.
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  • That makes this field of science rather peculiar and probably explains why there hasn’t been much progress. But it’s not like we don’t have any questions that need to be answered. There are a lot of questions that have been around for decades. For example, what is dark energy? What is dark matter? What are the masses of the Standard Model particles? And what’s up with the foundation of quantum mechanics? Is a theory that's fundamentally not deterministic, where we cannot predict outcomes, the last word that we have, or is there something more to it? Is there maybe another underlying structure to reality?
  • but we haven't reached the fundamental level. Maybe we will never reach it. Certainly, the theories that we have right now are not all there is. The question is, of course, if we don’t have any guidance by experiment, how do we make progress? And are we doing the right thing?
  • We’ve reached this point where we have to carefully rethink if the criteria that we’re using to select our theories are promising at all. If one looks at the history of this field in the foundations of physics, progress has usually been made by looking at questions that, at least in hindsight, were well posed, where there was an actual mathematical contradiction. For example, special relativity is incompatible with Newtonian gravity. If you try to resolve this incompatibility, you get general relativity.
  • There are various similar examples where such breakthroughs have happened because there was a real problem. There was an inconsistency and people had to resolve it. It had nothing to do with beauty. Maybe beauty was, in some cases, the personal motivation of the people to work on it. There’s certainly some truth to this, but I don’t think it’s good to turn this story around and say that if we only pay attention to this motivation that comes from ideals of beauty it will lead to progress.
  • If we are working with the wrong theories, we are making the wrong extrapolations, we have the wrong expectations, we make the wrong experiments, and then we don’t get any new data. We have no guidance to develop these theories. So, it’s a chicken and egg problem. We have to break the cycle. I don’t have a miracle cure to these problems. These are hard problems. It’s not clear what a good theory is to develop. I’m not any wiser than all the other 20,000 people in the field.
  • The way that research is funded in foundations of physics and in many other fields just puts a lot of things at a disadvantage that are not pursued anymore. Typically, everything that takes longer than three years to complete, no one will start it because they can’t afford it. They can literally not afford it.
  • Who makes the decisions about the funding? Superficially, people say that it's a funding agency, so it’s the university who get to hire people. But that puts the blame on the wrong party. In the end it’s the community itself who makes the decisions. What do the funding agencies do if they get a proposal? They send it to reviewers. And who are the reviewers? They're people from the same community. If you look at how hiring decisions are being made, there’s some committee and they are people from the same community. They have some advisory boards or something, which contains people from the same community.
  • Even if that wasn’t so, what the people in these committees would be doing is looking at easy measures for scientific success. Presently, the most popular of these measures are the number of publications and the number of citations. And maybe also whether the person has published in high-impact journals. So, these are the typical measures that are presently being used. But what do they measure? They primarily measure popularity. They indicate whether somebody’s research is well received by a lot of people in the same community. And that’s why once a research area grows beyond a certain critical mass, you have sufficiently many people who tell each other that what they’re doing is the good thing to do. They review each other’s papers and say that that’s great and it's what we should continue to do. It’s a problem in all communities that grow beyond a certain size.
  • I later came to the United States and then Canada, and that gave me the opportunity to learn a lot about quantum gravity. I also figured out that much of what goes on in quantum gravity is very detached from reality. It’s pretty much only mathematics. Yes, the mathematics is there, but I still don’t know if it’s the mathematics that describes reality.
  • That’s the very reason why we don’t normally think of gravity as a weak force. It’s the only force that is left over on long distances, and the reason for this is that it adds up. It gets stronger the more mass you pile up. More precisely, we should say that the reason we find it so hard to measure quantum gravitational effects is that we either have a particle that has very pronounced quantum properties, like, say, a single electron or something like that, but then it’s so light that we cannot measure the gravitational field. Or we have some object that is so heavy that we can measure the gravitational field, but then it doesn’t have quantum properties. Okay, so that’s the actual problem.
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