Many of his papers inspired me when I was in college and graduate school, and if the mark of a good scientific paper is that you find yourself regularly quoting it without even realizing it, then Dunitz’s papers have few rivals. Two rare qualities in particular made Dunitz stand out: sim...
Some time later, I was privileged as a largely unknown postdoc to sit down with a very kind Gene Parker over a lunch during a science meeting in Freiburg, Germany, to discuss possible reasons for this, but even using back-of-the-envelope (well, actually front-of-a-paper-napkin) sketches...
The charge exchange method, wherein \bar{{\rm{H}}} is produced with the temperature of the stationary \bar{{\rm{p}}} (with the recoil energy from the interaction with Ps accounting only for few tens m s−1 for the range of the Ps parameters discussed in this paper), offers a...
Find the limit of (1 - x)/[(3 - x)^2] as x---> 3. I could not find the limit using algebra. So, I decided to graph the given function. I can see from the graph on paper that the limit is negative infinity. How is this done without graphing? nycmathdad Thread Apr 2, 20...
Linda Crampton Updated: Dec 27, 2023 12:44 AM ESTA computer is a valuable asset for a physics student, but it must be used wisely. A pencil (or pen) and paper are still important for students. StockSnap, Pixabay License Passing Physics Examinations Writing a physics exam doesn’t have to...
So when a voter in this hypothetical town goes into the polling booth their ballot paper has six names, and they rank them in order (and although the mechanics of counting STV votes are complicated, its use by voters is really simple). A staunchly pro-Left voter will write 1, 2 and 3...
Hi, I am reading paper that I have to give a quick presentation on. I want to calculate the average power and peak power of the laser used, a Ti:Saphire laser. I have the wavelength they are lasing at (450nm), the repetition rate 81Mhz and the pulse duration (pulse width) of 100...
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This paper reports the effect of gamifying an Introductory Physics Course at the Universidad Politécnica de Madrid on the motivation of students and understanding of basic physics concepts in a playful way. For that purpose, the Physics Course was designed to include some elements of gamification as...
Hello, I am not sure if this is the right place but I would appreciate some help. Basically I have been trying to accelerate the fading of the ink on thermally printer paper. “Receipts are typically printed on thermal paper, a chemically coated paper that produces text and image when the...