HI everyone,
I was trying to build an antenna in C++. I don't know where to start. can anyone help me?? if there is some code that would be even better. I don't care about the type of antenna as long as it communicates.
THanks
Shastri
If you created a mathematical model of the geometry and electromagnetic properties of the antenna; and a mathematical model of the electromagnetic environment that the antenna was in, then you could subdivide space into a set of tiny three dimensional cubes and apply Maxwell's laws in each cube. (This is called Finite Element Analysis, or "Meshing"). In each cube (or finite element) you could calculate how the electromagnetic environment in that cube induced currents in the antenna in that cube.
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From Life magazine's 100 Photographs that Changed the World on the 1962 Cuban Missile Crisis. (emphasis mine) On October 22, 1962, after accusing the U.S.S.R. of installing nuclear missiles on Cuba, President John F. Kennedy ordered a blockade of the island. When the Soviet ambassador to the U.N. refused to deny the charge, U.S. ambassador Adlai Stevenson confronted him with these photos of missile sites taken by the high-flying spy plane, the U-2, and the Soviets were compelled to back down. The presentation of seemingly incontrovertible evidence would become known as an Adlai Stevenson moment. Robert F. Kennedy later admitted that he and his brother found the grainy images quite baffling, and banked on the interpretation proffered by the CIA: I, for one, had to take their word for it." Only a handful of these great pictures are available online but every one of these pictures comes with a great story. [Gallery 1 | Gallery 2 | Amazon] |
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| Here's something to cheer you up at the beginning of the dreary week ahead (or to inspire you to do something similar at the end of the week). Andy Riley's simple cartoons document the efforts of a bunny to commit suicides that are sick and hilarious at the same time. The complete collection is available as two books - The book of bunny suicides and The return of bunny suicides. |
Bush's speech focused on the 'power of freedom', saying that the best hope for peace in our world is the expansion of freedom in all the world. On that, not many people will disagree. The differences are over what he understands by 'freedom' and how the benefits of democracy should be spread in the world or indeed whether it is any country's business to export democracy to others... It is possible to have the freer world that Bush speaks of, but the idea that those who are strong and have a larger arsenal have an unchallenged right to impose their will on the weak, undermines democracy. Nation (Kenya)
Critics who were hoping that he would get mired in detail about Iraq were mistaken. Instead he went back to basics, reaching out to the belief of most Americans in the fundamental importance of freedom and using that to explain his policies at home and abroad. At times it sounded more like a sermon than a speech. Mr. Bush may not be much of a speaker. But sometimes the message is more important than eloquence and what he had to say yesterday had the power of real conviction. Irish Independent
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How can one resist looking at a site which bills itself as 'Poorly-drawn cartoons inspired by actual spam subject lines'! The cartoons are terrible, but that just makes them funnier.. check out Spamusement! (Try relating the title of this post to the cartoon shown on the left, heh) |
Dang! My head just exploded! Look, that's what your computer has been reduced to.. a two inch high cuboid that's just 6 inches long. Oh yeah, it packs all the connectors like ethernet, firewire, USB 2.0.. u name it.. and it's BYODKM (Bring Your Own Display, Keyboard and Mouse), but you can easily hook up that dell monitor/keyboard and the two button scroll mouse that you were using with your windows box.. who doesn't have a few of those lying around! The sweetest part is the price - $499! And don't get me started on the $99 512 MB flash based iPod which doubles as a flash drive..Allow me to drown in my own drool... |
CES 2005 at Las Vegas has been in the news for Bill Gates's somewhat fouled-up presentation, but there have been some great product launches too. GPS Watch has a list of all the cool new GPS products launched this week including this baby from Garmin that does everything the StreetPilot 2610/2650 does in a smaller package and a lesser price. (Thanks Gireesh!)![]() |
| Absolutely brilliant photography in black-and-white by Christopher Morris. And lookie, the prez uses an iPod too! |
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| An excellent guide on time management, taking notes in class, writing reports etc. |
1. Use the school career services website, but don't rely on it for new postings. Do use a search agent so that you do not miss any interview pre-select slots for on-campus interviews.
2. Post a resume to the websites of all your target companies. Every time you hand a paper-resume to an HR person, or mail in an application, they still need you to fill out their online profiles so that you are 'in the system'.
3. Use online services like Monster. I used to think that online job sites were junk, but with an improving economy, I know many people who have found interviews (and jobs) using these sites. In case of Monster, it helps to use the premium version for a few months since it pushes your resume to the top of the heap when employers search using keywords. (It also allows you to use a less crippled search).
4. Use local resources. For example, in Arizona, you can find local companies using the member list from the Arizona Technology Council. The same place has an associated job site where member companies can post jobs. It is not as extensive as (say) Monster, but it's a good place to find smaller companies in the area.
5. Heather Leigh from Microsoft has a blog post where she says "Don't apply to 50 jobs at the same company" since it gives the employer an impression that you are either a. not selective or b. desperate. (I wish I knew that before I applied to a dozen (similar) jobs at Qualcomm.) [Thanks Vivek!]
6. Keywords matter. A lot. Employers can find your resume only if it has the keywords they are looking for, so it helps to find the keywords in the job postings you are aiming for. Of course, you should not fluff your resume, but it helps to use the keywords employers are using, instead of using your own set of acronyms/descriptions.
7. Be very patient. I am still waiting for people who I know will respond eventually, to respond. After all, it's my priority not theirs.
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![]() | POD Gallery has a beautiful collection of art which are available as display quality prints in sizes upto 44x55" on paper and canvas. Also check out their POD Erotica gallery (not work safe) |
We've had innumerable bad experiences with German toilets. In Berlin, we lived on an upper floor and the water pressure was too weak to push a healthy-sized log off the shelf. After a few minutes' fruitless flushing you'd be forced to grab a wad of toilet paper and give the horrid thing an encouraging nudge. Then followed a lengthy bout of brushing and cleaning to remove the skid marks from the porcelain. At the other extreme, in Munich we lived in a basement suite where the water pressure was too high. Worse, the shelf was actually slightly concave, forming a shallow bowl. The first time I flushed the toilet the water came rushing through so forcefully that a small chunk of poo launched off the lip and shot out over the floor. After that we always held the lid down when we flushed. I swore you could feel a kick as the turd ricoched off the underside.
![]() | Here's a 1971 book which describes the working of computers for the layman using beautiful color illustrations and easy to understand text. You can also compare the 1971 and 1979 editions. Computers sure were clunky those days, and they did get a little better hehhh.. And look how monitors went from cool light-pen enabled devices to boring displays. I'm still waiting for the 1971 kind of displays. How It Works...The Computer |