By Soulskill from Slashdot's for-tracking-your-personal-airfleet department
szczys writes "Gregory Charvat has been playing with and teaching others about entry-level radar concepts for a long time. Now he's sat down and explained how you can do it yourself inexpensively. He says, 'One enabling technology for Radar was the cathode ray tube (CRT), which facilitated a method of measuring the time delay between transmitted and received waveforms. ... Today, rather than using a CRT we can use high-speed digitizers. This offers the obvious advantage of applying signal processing to acquired data so that only moving targets are detected, tracking can be achieved, imaging, and a multitude of other modes. But for hobbyist and consumer projects we do not need this much power, range, and can not afford the cost. We need the ability to sense like a long range radar (detecting only moving targets, imaging, Doppler, signatures, etc) but at short ranges and at low costs.' Charvat then proceeds to walk through several options for the amatuer hardware hacker."Read Replies (0)
By Roblimo from Slashdot's he-huffed-and-he-puffed-his-way-up-the-hill-because-he-forgot-he-was-riding-an-electric-bike department
Tim Lord first saw Faraday Bicycles at CES
, where their bikes drew plenty of attention and a fair amount of media interest. The company ran a successful Kickstarter campaign
in 2012, and 2014 is when they are starting to ship their pre-ordered bicycles and hope to get new orders for lots more. Tim's travels later took him to San Francisco, where he had a chance to visit the shop where Faraday bikes
are made, and to talk with some of the people who are designing and making them. (If you don't see the video below, please use this link
.)Read Replies (0)
By Soulskill from Slashdot's i-don't-want-to-rate-your-app-and-i-don't-want-to-tweet-about-it department
An anonymous reader writes "Jeff Atwood, co-founder of Stack Overflow, says the mobile app ecosystem is getting out of hand. 'Your platform now has a million apps? Amazing! Wonderful! What they don't tell you is that 99% of them are awful junk that nobody would ever want.' Atwood says most companies trying to figure out how to get users to install their app should instead be figuring out just why they need a mobile app in the first place. Fragmentation is another issue, as mobile devices continue to speciate and proliferate. 'Unless you're careful to build equivalent apps in all those places, it's like having multiple parallel Internets. "No, sorry, it's not available on that Internet, only the iOS phone Internet." Or even worse, only on the United States iOS phone Internet.' Monetization has turned into a race to the bottom, and it's led to worries about just what an app will do with the permissions it's asking for. Atwood concludes, 'The tablet and phone app ecosystem is slowly, painstakingly reinventing everything I hated about the computer software industry before the web blew it all up.'"Read Replies (0)
By timothy from Slashdot's don't-burn-too-many-bridges department
An anonymous reader writes "I am currently working for a software company that rakes in a lot of money and has an EBIT that puts other companies to shame. The company is great: good benefits, lots of vacation time, very good salary. However the problem is that their architecture is already established, change is often slow moving, and most of the decisions are made by architects as oppose to developers. I find my job somewhat mundane and I am losing interest. I recently was offered another job, with a small company that doesn't have the capital/revenue stream to provide all the perks that my current employer has. Needless to say, this small company wants someone to take their system into the modern age, which means re-design/new architecture, implementation, maintenance, team lead, etc.... thus, more experience to add to my resume. These are things that I won't be able to do easily in my current job. My concern is that it appears this company has really high expectations, and since I had to take a small pay cut to get this position it leaves a but of uneasiness in my stomach for future promotions/advancements. However I believe in their product, their vision/goals, the people and the future of the company. I feel excited but also scared as its a bit of a gamble. Has anyone else experienced the same thing?"Read Replies (0)
By timothy from Slashdot's and-a-pony department
An anonymous reader writes "The Director of Sustainability for New York's MTA is calling out Google, Apple, and Yahoo for 'deliberately' building their campuses away from public amenities like restaurants, and public transportation. 'With very few honorable exceptions like Tony Hsieh, the CEO of Zappos, who recently moved his company headquarters from suburban Henderson to downtown Las Vegas, tech companies seem not to have gotten the memo that suburbs are old and bad news,' he writes. Instead of launching their own bus services to ferry people from the city to their campuses, as the tech companies have done, the Googles and Apples of the world should 'locate themselves in existing urban communities. Ideally, in blighted ones,' says Dutta."
Maybe cities just don't have the right mix of amenities, price, space, parking, and other factors to make them better places to put certain businesses.Read Replies (0)
By timothy from Slashdot's repercussions-will-repurcate department
mendax was one of many readers to write with news about the apparent shutdown of Bitcoin exchange Mt. Gox, in the wake of massive theft. "The New York Times is reporting that Mt. Gox, the most prominent Bitcoin exchange, 'appeared to be on the verge of collapse late Monday, raising questions about the future of a volatile marketplace.' 'On Monday night, a number of leading Bitcoin companies jointly announced that Mt. Gox, the largest exchange for most of Bitcoin's existence, was planning to file for bankruptcy after months of technological problems and what appeared to have been a major theft. A document circulating widely in the Bitcoin world said the company had lost 744,000 Bitcoins in a theft that had gone unnoticed for years. That would be about 6 percent of the 12.4 million Bitcoins in circulation.' Maybe the U.S. Dollar isn't so bad after all."
Forbes goes further, and says flatly that Mt. Gox has shut down
; Wired calls it an implosion
. Reader electron gunner links to the alleged leaked document which outlines the exchange's crisis strategy
. Watch this story for updates, since there are bound to be new developments.Read Replies (0)
By Unknown Lamer from Slashdot's flu-nsa-llnl-juarez-waco-plf-hacker-cointelpro department
Advocatus Diaboli writes with this excerpt from an article by Glenn Greenwald on the pervasiveness of shills poisoning web forums: "One of the many pressing stories that remains to be told from the Snowden archive is how western intelligence agencies are attempting to manipulate and control online discourse with extreme tactics of deception and reputation-destruction. It's time to tell a chunk of that story, complete with the relevant documents.. ... Among the core self-identified purposes of JTRIG are two tactics: (1) to inject all sorts of false material onto the Internet in order to destroy the reputation of its targets; and (2) to use social sciences and other techniques to manipulate online discourse and activism to generate outcomes it considers desirable. To see how extremist these programs are, just consider the tactics they boast of using to achieve those ends: 'false flag operations' (posting material to the Internet and falsely attributing it to someone else), fake victim blog posts (pretending to be a victim of the individual whose reputation they want to destroy), and posting 'negative information' on various forums."
I guess Cryptome was right
. Check out the the training materials
provided to future forum spies.Read Replies (0)
By Unknown Lamer from Slashdot's security-audits-who-needs-em department
MrJones writes "Last February 20th, hackers supposedly from Iran accessed and modified (English) the www.NIC.py database, redirecting www.google.com.py to another site.
The hackers posted the whole NIC.py database containing full names, national ID numbers, street addresses, phone numbers, and more of registrants. This is not the first time (English) that NIC.py, managed by the 2 most respectful Computer Science Universities of Paraguay, was hacked. Since the entire database was released, local white hat hackers were able to calculate how much money NIC.py was making annually (English) by charging $44 US per <tt>.py</tt> domain.
The local CS community are urging the NIC.py administrators to do all whats possible to protect the <tt>.py</tt> domain names since the hack was done by exploiting a simple remote code execution vulnerability. If they can modify google.com.py, just imagine what they can do to banks and financial institutions. Maybe Google can helps us."Read Replies (0)
By Unknown Lamer from Slashdot's gpg-plus-email department
Nerval's Lobster writes "Our lives online come with perils, whether from the NSA checking up on our digital communications, or the possibility of the wrong e-message going viral. Twitter, Facebook, Google, Instagram, and other social networks have collected all sorts of personal data about us, where we've been, what we're saying, what we like, and our friends. No wonder the idea of ephemeral messages — such as those sent via Snapchat and other services — is beginning to resonate, attracting lots of startups who want to service that very need. These creators of self-destructing message apps claim they don't care about monetization, and that their products are secure — but as so many apps from other startups have demonstrated, security is often a very porous thing, and government agencies are more than happy to fire off a warrant to see unread messages stored on a server. Lots of developers want to become the Snapchat (if it means they can take a multi-billion-dollar buyout), but in the case of vaporizing messages, they're tiptoeing into tricky territory."Read Replies (0)