Beta

×

Welcome to the Slashdot Beta site -- learn more here. Use the link in the footer or click here to return to the Classic version of Slashdot.

Thank you!

Before you choose to head back to the Classic look of the site, we'd appreciate it if you share your thoughts on the Beta; your feedback is what drives our ongoing development.

Beta is different and we value you taking the time to try it out. Please take a look at the changes we've made in Beta and  learn more about it. Thanks for reading, and for making the site better!

Comments

top

Is It Really GPS If It Doesn't Use Satellites?

worip Re:Well ... (298 comments)

The general term is GNSS - Global Navigation Satellite System.

about 2 months ago
top

Is It Really GPS If It Doesn't Use Satellites?

worip Re:Well ... (298 comments)

Typically the different systems of GPS, GLONASS, Galileo, Beidou, etc. is referred to as GNSS (global navigation satellite systems).

about 2 months ago
top

Evernote Security Compromised

worip Control the encryption layer (104 comments)

If you use a cloud service, use a layer of encryption that is under your control, e.g. truecrypt with dropbox. Problem is that is usually breaks the service. A possible alternative is to build your own cloud with OwnCloud. Note though that nothing as good as Evernote is yet available as a private server.

about a year ago
top

Ask Slashdot: Best Electronics Prototyping Platform?

worip Re:Arduino, AVR, RPi, Beaglebone (228 comments)

Oh, forgot to mention that C is really the only language if you are doing truly embedded (running on the metal) work. Other languages are fine when you have an operating system running, but C (and usually in some form or another assembler to get things started) is the most prevalent embedded language out there.

about a year and a half ago
top

Ask Slashdot: Best Electronics Prototyping Platform?

worip Re:Arduino, AVR, RPi, Beaglebone (228 comments)

My whole problem with the whole Arduino universe is the price. You essentially pay an extremely large markup for the libraries and community. There are other much cheaper developer platforms out there, e.g. TI's MSP430 launchpad (essentally a $4 development board with a built-in emulator) and the corresponding community ww.43oh.com, but you are much closer to the hardware. So the learning curve is steeper, but you probably going to learn much more. Another option is the Discovery platform by ST, a very capable ARM platform. The platform you choose will be determined by what you want to do, i.e. turning LEDs on and off you will go for a simple microcontroller e.g. the MSP430; building an IMU for a quadrocopter you will probably need to go for an ARM-like device.

about a year and a half ago
top

Apple Patents Wireless Charging

worip Re:20120303980 Patents (253 comments)

?ew era, tfel ot thgir gnidaeR

about a year and a half ago
top

Will Microsoft Dis-Kinect Freeloading TV Viewers?

worip Re:Masking tape (478 comments)

Sorry that is 8-15 um.

about a year and a half ago
top

Will Microsoft Dis-Kinect Freeloading TV Viewers?

worip Re:Masking tape (478 comments)

Nope, the kinect uses near infrared (somewhere between 900 and 1400nm). So no body heat detection (that requires sensitivity to 8–15 m) and is fairly expensive, os I doubt it will be in a consumer product. In theory a photo made with near infrared paints should be able to fool the unit, depending whether or not it uses motion detection combined with a human movement model to actually detect a human.

about a year and a half ago
top

'Mein Kampf' To Be Republished In Germany

worip Godwin's law (462 comments)

I'm guessing the invocation of Godwin's law is inevitable for this article...

more than 2 years ago
top

White Space Wireless Broadband Trial In UK Is a Success

worip Re:My 0.25 (39 comments)

You're missing the point - this is to cover areas with broadband access that previously did not have access (or had really slow access because they are located so far from an exchange). This won't give you coverage in your garden (that is what WiFi is for), it is more to get a bigger internet pipe to your house so that you can get some decent speeds.

more than 2 years ago
top

Japan To Be Without Nuclear Power After May 5

worip Re:Don't cry for the N-Industry just yet.. (267 comments)

The local population probably wants to live next to a coal power plant even less. Power stations need to be built somewhere and people usually argues the NIMBY (not in my back yard) principle even though they want what the power station provides. Would you rather prefer developing countries build coal power stations? Because renewables are probably more than an order of magitude off from actually providing the type of power that a nuclear power station provides (GW vs tens of MW) and are typically unable to provide base load. I bet though, that if you poll the larger engeering populace that at least 80% of them will think that nuclear is our ONLY answer right now.

more than 2 years ago
top

FCC Bars Lightsquared From Using Airwaves

worip Re:Sucks for Lightsquared (178 comments)

Actually, the spectrum was never intended for terrestrial use at all. Lightsquared applied for an exemption to apply the spectrum for terrestrial use, but they had to prove that it did not intefere with GPS. Most RF engineers would have told you that they where doomed from the start to fail, as the physics does not allow you to do this. All RF equipment have to contend with a thing call adjacent channel rejection - i.e. whilst tuned to its own channel a device must reject inteference from channels adjacent to its own by using a bandpass filter. Bandpass filters are not perfect (i.e. it is not a brickwall) and some interference always leaks through. The specific issue here is that the terrestrial signal would have been so large compared to the signal received from the GPS sattelite that the bandpass filters would have been unable to suppress the signal in the adjacent channel. This is akin to someone shouting in your ear, while you are trying to listing to someone whispering 20meters away.

more than 2 years ago
top

Why Microsoft Developers Need a Style Guide

worip Re:Nobody is happy (262 comments)

So long as an API sticks to Init(), Get/Set/Execute/Calculate() and Deinit() it doesn't really matter, people will learn it sooner or later. What *does* matter, however, is that an API does not break "unwritten" conventions like always returning true even when the operation was unsuccessful (yes, I am looking at you Microsoft for that awful Windows Media Player COM interface - that was just evil!)

more than 2 years ago
top

Red Cross Debates If Virtual Killing Violates International Humanitarian Law

worip Re:what a load of (516 comments)

Don't forget the books. Stephen King is a mass murdered and must be stopped.

more than 2 years ago
top

Stanford's Free Computer Science Courses

worip Re:Future of education (161 comments)

Education not just for the young ones, but cost effective continuous development for the older generation as well. Especially useful in rapidly evolving fields.

more than 2 years ago
top

Boeing Delivers Massive Ordnance Penetrator

worip Re:Pet Peeve: Imperial units (381 comments)

It is not the translation from lbs to kg that bothers me, it is the fact that the word tons has been used, which has several different meanings (including one in the metric world).

more than 2 years ago
top

Boeing Delivers Massive Ordnance Penetrator

worip Pet Peeve: Imperial units (381 comments)

Five tons in this instance would be 10000 pounds? Otherwise it would be the same $%^$%^ that got you guys in trouble with the Mars Orbiter. Let's translate for the rest of the (metric) world: "...it is nearly 22,000kg heavier than the ~50,000kg GBU-43 MOAB surface bomb, sometimes called the 'mother of all bombs.' 'Our past test experience has shown that 4,400kg penetrators carrying 1100kg of high explosive are relatively ineffective against tunnels,..."

more than 2 years ago
top

Google Brings Design-By-Contract To Java

worip Re:Fail (134 comments)

I agree, does this not rely on the developer actually specifying the contract? Also, would it not be possible to have bugs in the contract itself?

more than 3 years ago
top

Has China Already Flown a Space Plane?

worip Verified? (176 comments)

Not knowing how independant the Chinese press is from the Chinese government - has anyone verified this independantly? How about any photos (besides from the plastic model in the article)?

more than 3 years ago
top

Was There Only One Big Bang?

worip Re:No...this is the third matrix. (295 comments)

Did anyone else get the same hilarious Google ad with the article?:
Men- Treat Dark Circles - Combat Severe Dark Circles. New Eye Gel with Award Winning Technology. - www.manceuticals.co.uk
Black holes and concentric circles will get you there...

more than 3 years ago

Submissions

top

Spacex commercial satellite launch success

worip worip writes  |  about 5 years ago

worip (1463581) writes "Early this morning (03:35 am GMT) or late yesterday evening (11:35 pm EDT) Spacex made history by successfully launching the first commercial satellite, RazakSAT (an Earth observation satellite for Malaysia), using their own privately-developed booster into near-equatorial orbit. Several news outlets (mainly in the East) are carrying the story at the moment. Western coverage includes Spaceflight Now and Wired."
top

100 Kilowatt Solid-State Military Laser

worip worip writes  |  more than 5 years ago

worip (1463581) writes "Northrop Grumman today released news of the development of a 105kW solid-state laser. The laser was developed as part of the U.S. military's Joint High Power Solid State Laser (JHPSSL) program. From the news release:
"This achievement is particularly important because the 100kW threshold has been viewed traditionally as a proof of principle for 'weapons grade' power levels for high-energy lasers. In fact, many militarily useful effects can be achieved by laser weapons of 25kW or 50 kW, provided this energy is transmitted with good beam quality, as our system does. With this milestone, we have far exceeded those needs.""

Link to Original Source

Journals

worip has no journal entries.

Slashdot Login

Need an Account?

Forgot your password?
or Connect with...

Don't worry, we never post anything without your permission.

Submission Text Formatting Tips

We support a small subset of HTML, namely these tags:

  • b
  • i
  • p
  • br
  • a
  • ol
  • ul
  • li
  • dl
  • dt
  • dd
  • em
  • strong
  • tt
  • blockquote
  • div
  • quote
  • ecode

"ecode" can be used for code snippets, for example:

<ecode>    while(1) { do_something(); } </ecode>