Topic Definition and 391 Threads

The BID 770 was a British-built electronic cryptography device, codenamed TOPIC. It was also used by Canada's foreign service under the codename TENEC. TOPIC was brought into service in 1977, and became obsolete in 1995.
TOPIC was used to protect telegraph traffic, and replaced the earlier mechanical system called ROCKEX. It could be operated in both on- and off-line modes. Weighing 65 lb, the machine used diode–transistor logic instead of single transistors.

View More On Wikipedia.org
Recent contents Top users
  1. S

    Looking for a undergrad senior project topic

    Hi all, I'm a graduating senior next semester and I need to choose my senior project topic by the end of May. The problem is that I have NO idea where to even start looking. Anyone have any ideas? I am interested in number theory, and some differential equations but NOT linear or abstract...
  2. P

    In the book Galvin,In the topic of overlays it's mentioned lets

    In the book Galvin,In the topic of overlays...it's mentioned... lets take an assembler working in 2 passes...pass 1 which symbol table and 2nd pass which produces machine language... now pass-1 70 kb pass 2 80kb symbol table 20kb common routine 30kb now in the overlay A they include...
  3. K

    High School Debate topic: Space development and Exploration

    I thought that the high school debate topic for 2011-2012 would be fun to share. Any thoughts on how space exploration and development of space can be implemented is appreciated. Topic: Resolved: The United States federal government should substantially increase its exploration and/or...
  4. R

    Searching for Technical Paper Topic? Get Ideas Here!

    Need a Topic! I’m in the 3rd year of Electrical & Electronics Engg. and well it’s high time I started work on a Technical paper. Primarily I’m interested in Power Electronics and love doing work on Electric Circuit Theory. Also love working in anything related to Mechanics. Microcontrollers...
  5. G

    Math Undergrad Thesis Topic Advice

    Hello everyone, I was wondering if anyone with more experience than I could give some advice about choosing a topic for my undergrad thesis. I'm currently a Junior in an Applied Math program, and I am interested in going to graduate school for a Ph.D after I complete my undergrad. I am aware...
  6. K

    How Do I Choose a New PhD Topic in Electrical Engineering?

    Who can help me :( HELLO .. I am Msc.Eng in electrical just finished my Msc and i want continua my P.hd but i am too confuse how i can choose my P.hd topic and which area .. my area in Msc was in solar cells .. but i want change it to other area because solar cells area is not that good to...
  7. T

    I've have to give a talk for our maths society. Topic suggestions?

    Hi everybody, I'm a first year Ph.D student in mathematics and I've been asked to give an hour long talk for the university maths society. Speakers have the choice to talk about just about anything maths related, however the focus of most talks is usually the discussion of a classic maths...
  8. L

    Need help choosing topic for ECE literature review

    This doesn't seem to be a typical type of question for this site, but I need help choosing a topic for a literature review in an advanced writing class. It needs to be related to computer or electrical engineering, and is described as follows: "A literature review is a very common genre of...
  9. D

    Why Does the Derivative Transformation Use Cosine in Spherical Coordinates?

    Homework Statement There is one thing I'm not getting in this problem. It's about uniformly magnetized sphere. In solving the problem with formula for magnetic potential: \phi_M=-\nabla\cdot\int\frac{\vec{M}}{|\vec{r}-\vec{r}'|}d^3r' At one point a change of variable for...
  10. B

    Topic suggestions: Spacial coherence in Nanotechnology.

    Hi I have to give a 10 minute presentation for a course. The topic is 'Spatial Coherence' and should, ideally, be related to my research. My research field is, in broad terms, surface nanotechnology. However, in specifics I use scanning probe microscopy, which is non-optical or electron wave...
  11. DaveC426913

    The Topic That Wouldn't Die: Bernoulli's Principle and airfoils

    Recently, I was discussing airfoils with a friend. I thought I was being clever and said "No, Bernoulli's Law isn't what's keeping it in the air - that's a fallacy. If it were Bernoulli's Law keeping it in the air, then airplanes would not be able to fly upside down. What keeps a plane in the...
  12. E

    What Sakurai Topic Best Connects Quantum Mechanics to Nuclear Physics?

    In our course covering some parts of Sakurai's Modern Quantum Mechanics we have a special exam. We must present a topic from the book not covered in class to our professor in half an hour. I'm not that familiar with the book yet, because I've had many project due this semester. So I'm uneasy...
  13. J

    Physics Project Topic Ideas for High School

    I'm not sure if this really constitutes as homework, its really a question more about topics in physics. As a final project in our high school physics course, we have been asked to design and test a physics principle learned over the period of the course. Topic from Kinematics and dynamics...
  14. X

    How to Structure a Technical Paper on Quantum Mechanics for Graduate Students?

    Homework Statement I have an extra credit assignment. I can write on any topic involving quantum mechanics (graduate level class). I needs to be a technical paper. I have tried to obtain more details about format from the professor but she does not help much. I have never written a physics...
  15. L

    Help in choosing a suitable essay topic

    I am in my second year of an undergrad degree in physics and we have to write a 2000-3000 word essay on a topic of our choice. This can be any aspect of physics or anything related to physics with sufficient physics content and should be written in a popular science style. My problem is I...
  16. MathematicalPhysicist

    The effect of PhD topic on postdoc

    I wonder how does the topic you choose to specalise in during your PhD affect what you'll research later on in your postdoc years? I mean assuming you specalise in number theory and decide you want to change to geometry or analysis in postdoc who would even give you a job if your'e not...
  17. A

    Question regarding research (related to research topic and writing thesis)

    I have three questions: 1. Suppose your supervisor has given you freedom to choose topic of research (for PhD). How do you decide what topic to work on? 2. Can one work on two somewhat disconnected topics and write about both in same thesis? 3. When do you feel that you have done enough...
  18. B

    And difficult algebra problem with unknown topic due in 13 hrs

    urgent and difficult algebra problem with unknown topic due in 13 hrs due now
  19. F

    What Are Some Math-Based Topics for an Astrophysics Project?

    For our astrophysics class, we're asked to present to the class our research on a certain aspect of astrophysics/astronomy integrated with a relevant discipline of science (Students in comp. sci might choose to do a project on computer modeling of stars for example). I'm looking for topic...
  20. C

    Hardest topic in intro calc-based Physics I

    I'm just interested into what part of the class people have trouble with. Of course people are different so the answer may vary but I'm talking in general here. Which topic was the hardest to grasp and solve for your class and yourself. Just curious to see where the bumps may be and if I...
  21. TheFerruccio

    Best way to choose a journal topic to write about?

    I've been wanting to write a journal article for quite some time. It doesn't have to be anything major, but I'd love to learn the process first-hand. The most important thing is finding something that hasn't been done before, or an idea that hasn't been pursued. I'm finding a lot of trouble...
  22. L

    Organic food is a topic for pseudoscience?

    I need to write 3-5 paragraph for a topic about science, non-science reported like science , or pseudoscience. I want to know if Organic food is a topic for pseudoscience? If so, what should I write about? I want to write how healthy organic food are, better tasting, chemical-free, etc. This...
  23. srfriggen

    What Is Considered the Most Difficult Topic in Linear Algebra?

    Hello, I don't have a HW problem to post (yet) but I have just started taking college level Linear Algebra and was wondering what most people consider the most difficult topics in the course? At this point I am up to solving for systems of many variables (usually 3) by performing row...
  24. P

    Not sure on topic - relativity if I had to guess

    Homework Statement Pions have a half-life, at rest, of 1.77 x 10-8 s. A collimated beam of pions leave an accelerator at 0.95c. What distance from the accelerator will the intensity be half? Homework Equations The Attempt at a Solution as you can probably tell from the title I really need...
  25. A

    Calculating Free Fall Distance from Time Interval Using Kinematic Equations

    Another free fall topic :) Here I don't really know where to start Homework Statement A body in free fall covers 64% of the total distance fallen in the last second. From what height did it fall? Homework Equations y= y1 + y2, where y1=0,36y and y2=0,64y y=.5at², where a=g=9.8...
  26. Y

    Undergraduate final year project topic.

    Let me explain my situation in short terms. 1. to get a degree here(malaysia), we'll need to work on an undergraduate final year project which is sort of alike thesis? basically an undergraduate research program. 2. I like theoretical or computational physics. Well, perhaps the math, quantum...
  27. Y

    What is a good reasearch topic to work on in the case of Corrosion?

    What is a good reasearch topic to work on in the case of Corrosion?? What is a good reasearch topic to work on in the case of Corrosion?? :rolleyes:
  28. P

    Have You Captured the Inspiration Behind Newton's Work in Photos?

    Hey guys! When I was on a trip in Cambridge I took a picture of the famous apple tree, that is supposed (so the turist office claims:-p) to be the one, where Isaac Newton got the idea for his most importaint work. In the back there are two windows and one of them (I think it's the right one)...
  29. A

    Topic about autoroute in PCB designing

    Hi everyone: I am new to PCB design, I want to how know often do you use autoroute, or just route the trace manually. Someone tell me that, they route most of the traces automatically and then modify it manually. Thanks
  30. H

    How to Find a Research Topic in Optimization for a Math MS Program?

    Honestly, I don't know how to put my question in words. However, I will give it a shot. I just completed BS degree in math and got an admission in MS program for Fall 2010. And I want to enter Ph.D. program after MS. In my last semester, I took a nonlinear programming course and it made me...
  31. P

    How Can Degenerate Fermi Gases Illuminate Quantum Statistics?

    I'm a senior undergrad student and I am going to give a 50 minute lecture on Degenerate Fermi Gases to the Thermodynamics and Statistical Mechanics class. I was wondering if anybody could help me out with coming up with some interesting stories, factoids, thought experiments, history lessons...
  32. M

    Aerodynamics - advice on topic for personal researche

    hello,:smile: I wanted to do some personal research in physics, which obviously is my subject of interest. more precisely something on aerodynamics. I am not sure yet on which part of aerodynamics i want to investigate in, but I had a few examples allready: aerodynamics applyed to a race car...
  33. S

    Motion assignment-any topic to investigate?what should i do?

    motion assignment-any topic to investigate?what should i do? Investigate and discuss a topic from "motion" and "forces". I would really appreciate it if anyone has an idea of what i could expand on and investigate. Topics covered in class: equations of motion, Newtons laws, momentum...
  34. C

    Writing a mock physics news article, need a good topic

    I need to write one for my first year Lab course. My current idea is to write about the future reversal of the Earth's magnetic field, and how it might affect things on earth. However, I've looked into some theoretical effects of the shift (mainly during the shift itself) and there doesn't seem...
  35. E

    Need a Physics Investigatory topic

    Homework Statement ^Not quite relevant to follow the template, unfortunately. I need to do an investigation in Physics (not just a research paper) and I need help finding a suitable topic Some of the good ones that have been done so far mainly involved looking at the aerodynamics of aeroplanes...
  36. M

    Need Controversial Topic for an Eng102 Class

    Didn't really think this question fit the Homework section, so I hope this is alright. I need to have 3 sources "for" and 3 sources "against". The difficulty lies in choosing a subject that when I present the evidence for each side, ppl in class and the prof's eyes don't start to glaze over...
  37. N

    Research Paper Topic for a Student

    Hey guys, I'm completely new to these forums, but I'm hoping someone here can help me out. I'm a Junior in high school, and I basically need some help with the 7 page research paper I'll have to write. I love physics in general, mostly quantum physics, particle physics, theories of...
  38. P

    Can Ancient Alchemy Be Applied to Modern Chemistry?

    Hey guys, I need some opinions. I'm doing a project this semester for my chemistry course, and I was thinking about doing it on the contributions of ancient alchemy (or rather the work of alchemists, not just the transformation of lead to gold) to modern chemistry. I have to find a creative...
  39. P

    Off topic - any CNC experts, or plasma cutting gurus?

    Hi guys. I need some ideas on making something similar to one of these: http://www.pumpschool.com/images/Cutaway-Classic+.jpg Only the one I'm trying to make will pump 200+PSI, and be driven from red hot exhaust. Swept volume is going to be around 4 liters per revolution. I...
  40. P

    Need a Topic For Experimental Investigation

    Hey everyone, New to the forum - I apologize if you already get heaps of posts like these... Im in Year 12 Physics, and out first assessment piece is related to the physics of sport. It's a typical physics project -> hypothesis, testing, report...etc We're looking at anything relating to...
  41. J

    Physics for electrical engineering: Which topic should I start from?

    I'm already half way through electrical engineering undergraduate course (I have taken subjects like circuit analysis and electromagnetic theory), and I am thinking of reviewing these subjects. For this, I also need to review physics. However, I don't know which topic should I start from. I want...
  42. Y

    Surprising Silence on Today's Topic

    I am surprised no one made at least one thread about this today.
  43. P

    Anybody can help i need a topic in theoretical physics .?

    anybody can help ... i need a topic in theoretical physics ...?! hello everybody ! how are you everybody ...?! i wish you are ok ... at first let me introduce myself ... i'm a graduated physicist "2009" ...tel aviv university me and two friends want to do a research in physics "i mean...
  44. M

    Is Our Perception of Meaning Inherently Flawed?

    Blak oddark muttuma cantopole blajpherin spoatomy. Ok the above sentence is totaly meaningless but... What the idea of this is to find out why... <--- This means anything at all while the above does not. My idea is that you have less chance of misunderstanding me with the above like of...
  45. N

    Share Your Thesis Topic: What Did You Write About?

    Hi all What did you write your bachelor thesis about? Niles.
  46. M

    Discussion topic in physics for high school students

    Hi, I'm currently one of the organizers of a seminar for talented high school students in my home town and one my task for the next session is to give a brief talk on some interesting subject in (theoretical) physics, with a discussion afterwards, where the students will participate. It...
  47. Pattonias

    A topic for amusement Debunking Time Travel

    I don't know if this has been discussed before, but I offer this paradox to debunk time travel. If time travel was possible, given an infinite amount of time from the point of its discovery and perfection; then someone eventually would have traveled back in time and made its existence known...
  48. T

    Help finding topic for Independent Research

    I am a high school senior and am enrolled in an independent study class, but am having a difficult time finding a topic for my research... Does anyone have any suggestions or links to any sites that could help me find one?? I plan on studying physics in college and would like to keep it...
  49. M

    If there is topic Is Our Universe Flat poin me.

    If there is topic "Is Our Universe Flat" poin me. I bet:) no
  50. T

    Schools I need a topic for my Independent Research High school senior

    I am having an awful time trying to find a topic... any help would be appreciated
Back
Top