New Long-Range RFID Technology Helps Robots Find Household Objects
UGrokIt (ugrokit.com) just started shipping such a thing. (Disclosure: I have worked with UGrokIt.)
Oppo's New Phone Hits 538 PPI
There's a difference between static and dynamic content. Aliasing artifacts that are perfectly acceptable at 300DPI on a non-moving line can be pretty annoying on a moving line. The same goes for other high-frequency features in images.
What Are the Genuinely Useful Ideas In Programming?
The behavior of floating-point arithmetic. This wasn't covered in my university curriculum, and was necessary in tasks including graphics, machine learning, and finance once I got into the industrial world.
As a manager, possibly the single most important skill for me was learning the ways to estimate the time required for complex programming tasks. Once you're tackling problems beyond the scope of a single programmer, coordination is required, and schedule estimation is essential.
West Nile Virus Outbreak Puts Dallas In State of Emergency
In the US, the Environmental Protection Agency has stated that concentrations of up to 100% are safe for adults. The American Academy of Pediatrics has stated that concentrations of up to 30% are safe for children. In both cases the repellent must be applied properly! Consumer Reports recommends 30% to 50% for adults, and helpfully explains that higher concentrations last longer, but don't repel any more effectively than lower concentrations.
Personally, I've used 100% DEET for a week at a time, a few times a year, over several years, without any of the documented side-effects. If someone is in one of the (relatively uncommon) situations where it's appropriate, I wouldn't hesitate to recommend trying it. Otherwise, adults can use 30% to 50% DEET and reapply as needed. My kids use 10% to 30% when necessary.
All this is subject to the usual cost/benefit tradeoffs, of course. There appears to be a lot of data showing that the risk of using DEET is low, so if West Nile or some other mosquito-borne disease is threatening, the benefit probably outweighs the risk.
Gut Bacteria Exert Mind Control
Try reading Vitals by Greg Bear.
National Debt Clock Overflowed, Extended By a Digit
... what's really important is the debt-per-capita ratio...
That's possible, but what's your compelling rationale? Without one, I could just as easily argue that the really important metric is debt/GDP, debt/median-income, debt/income distribution function, or a dozen other things.