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Physics Forums Featured Threads

Basic Math Challenge  September 2018
Summer is coming and brings a new basic math challenge! Enjoy! For more advanced problems you can check our other intermediate level math challenge thread! 
Double blind peer review winners and losers
Double blind peer review is a process in which not only the author does not know the name of the reviewer (which is the standard practice), but also the reviewer does not know the name of the author (which is not a standard practice). What would happen if the scientific community suddenly decided to shift to the double blind review process? Who would be the winners? Who would be the losers? 
Analyzing the game of tennis
I am trying to analyze the game of tennis. I started very simply by analyzing just the ground strokes, ignoring the serve, and calculating the odds of winning a single point given the odds of returning each ground stroke. I got a surprising (to me) result showing that the player to goes first always has a lower probability of winning the point than the opponent... 
Cellphone Distraction in Classroom Can Lead to Lower Grades
This is something many of us instructors have to deal with, something that was never an issue when I was still in college. Students now come to class equipped with notebook laptop, tablets, and of course, the ubiquitous cellphones. Different instructors have different policy on the use of the electronics, ranging from an outright ban, to "I don't care if you use these during class session as long as you don't distract... 
The 2018 Fields Medal has been awarded...
The 2018 Fields Medal has been awarded to: Caucher Birkar, Alessio Figalli, Peter Scholze, Akshay Venkatesh. More inside... 
How much time should I study?
I'm having trouble in studying. I am studying full time from Monday to Monday but I just cannot get focused all the time, I realized that more than half of the time I'm sleepy or struggling to maintain my focus. I'm doing my degree in physics and I feel like I need to study full time, but I just can't do it, what should I do? 
Genoa Bridge Collapse  Engineering Perspectives
The dramatic collapse of a bridge in Italy with many fatalities has been the big item of news all over Europe. I just wonder if the qualified people here can throw any light not on the specifics which would be hard for them to know, but in general... 
Basic Math Challenge  August 2018
Summer is coming and brings a new basic math challenge! Enjoy! For more advanced problems you can check our other intermediate level math challenge thread! 
Intermediate Math Challenge  August 2018
Summer is coming and brings a new intermediate math challenge! Enjoy! If you find the problems difficult to solve don't be disappointed! Just check our other basic level math challenge thread! 
Sabine Hossenfelder and Beauty in Physics
From the Vice article: "Who doesn’t like a pretty idea? Physicists certainly do. In the foundations of physics, it has become accepted practice to prefer hypotheses that are aesthetically pleasing. Physicists believe that their motivations don’t matter because hypotheses, after all, must be tested. But most of their beautiful ideas are hard or impossible to test. And whenever an experiment comes back emptyhanded..." 
Happy RNA Day!
Today (AUG 1) is RNA Day, an international celebration of one of the most versatile biomolecules in existence. What are some areas of RNA research that excite you most? Some of the most intriguing areas of current research to me (with example links for further reading)... 
How is physics knowledge used in everyday life?
What I am struggling to come to grips with is how knowing physics, the topics typically taught in a high school intro course, can be useful in everyday life. I am not looking for everyday examples of physics concepts. I mean real actual examples of using Newton’s laws or momentum in real life purposefully. Can you think of a time when you actually used your physics knowledge in everyday life? 
What makes a problem computationally NP?
As the title says, what makes a decision problem NP complex? Is it application of the definition (as in: solvable in polynomial time by a nondeterministic Turing machine)? Also, if P does not equal NP, does it mean that NP problems can only be solved in O(exp(n)) time/steps? 
Easy ways you can support Physics Forums
We are all members of an amazing community of science and math passionate people from all over the globe. However, "amazing" doesn't just happen over night or by itself. "Amazing" happens when members take pride and responsibility for the health of the community... 
Basic Math Challenge  July 2018
Summer is coming and brings a new basic math challenge! Enjoy! For more advanced problems you can check our other intermediate level math challenge thread!
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