The USB spec on the limit is actually based on timing, not a capacitance spec as is RS-232. Resistance isn't much of an issue for the data signaling, as it's done by switching in/out fairly high resistance pull-up/-pull-down resistors at each end. Resistance can be an issue if you're using USB power though. Cheap extension cables with undersized conductors can drop the voltage at the device enough to cause problems.

Funny you should mention the ethernet spec, as it's pretty common place to exceed that limit using at least half-way decent cable. My original assertion was that he needs better cables, ideally one with an active repeater (ie 1-port hub) if he's going beyond 5 meters.

Indeed, this is the most common reason cited by the schools for not teaching cursive anymore (or making it an elective later on). Teaching cursive is taking time away from more important things like reading comprehension or even learning the ability to write something coherent in the first place.

Eh? This sounds more like crappy cables, than anything else. Propagation delay on an extra 10-feet of cables is hardly measurable much less noticeable.

My point was that it's much simpler when you have direct control over the node.

Cookies and javascript are not the only ways to track you. Doesn't Facebook require cookies to be enabled?

As much as Tor can help, there is no such thing as being perfectly anonymous on the internet. I certainly don't trust Facebook to protect it any more than I trust Google who also makes money by tracking and targeting me.

This drug treats a specific cause of Type-1 diabetes (inability to produce enough insulin). Type-1 accounts for about 5-10% of diabetes diagnoses and is not preventable. Type-2 is the other type, where the body can't properly use the insulin (also called insulin resistance). Type-2 can be usually be prevented or delayed with a healthy lifestyle, including maintaining a healthy weight, eating sensibly, and exercising regularly.

Tor becomes less effective when corporations are running the nodes. Nothing like funneling all your data through an untrusted proxy. Besides, didn't the NSA already show us that Tor does little to protect anonymity? Between cookies and other tracking methods, all those website already know who you are, regardless of how the traffic got there.

Why always-on? The GPS devices only to squawk their location info periodically, and it's not likely to change if they vehicle is turned off. Usually though, you'll an obdii port splitter used, which means the unit is tucked under the dash somewhere on the drivers side.

Only works if the magic ingredients are cheaper than the resulting power. If if this is on the up&up, they dumped $50 of power into it and got $100 heat back out. Can you turn that heat into $50 of electricity? Did it consume more than $50 of ingredients, manhours, and reactor materials?

The sample was tested before being put in. Ash was pulled from the reaction and tested afterwards. That ash very likely contained stuff from the reactor casing. That they were not allowed to dissect and analyze the casing makes me wonder it it was actually constructed as described - an alumina casing with embedded inconel resistance heat wires. It wouldn't be the first time an experiment was tainted, either accidentally or intentional.

Have another look at that diagram. It looks fine to me. The SW is the power disconnect. They are measuring the 3-phase power into the control system and measuring what's being fed to the resistors. There are no doubled cables being measured. If the control system was somehow trying to sneak power using high frequency that the power meter couldn't sense, it would surely be noticed on the input side measurement but I didn't see any data that compared controller input power to output power..

I was more troubled by their method of estimating the radiating and conducting heat loss by using a thermal imaging camera and using "literature" to derive the crucial variables needed to use this method. There are much more scientific methods of measuring heat.

The real test will be if someone else can reproduce the results.

No, but it's certainly an indicator of the quality of code. Don't be surprised if other vulnerabilities are discovered as everyone shifts their attention and starts scrutinizing the rest of the code. The code diff is below. It's a pretty amateurish mistake, and had someone reviewed or tested the original code, they'd have seen it didn't do what it was supposed to. The comments even give you a big hint what the next vulnerability is going could be.

diff --git a/includes/database/database.inc b/includes/database/database.inc
index f78098b..01b6385 100644
--- a/includes/database/database.inc
+++ b/includes/database/database.inc
@@ -736,7 +736,7 @@ abstract class DatabaseConnection extends PDO { // to expand it out into a comma-delimited set of placeholders.
          foreach (array_filter($args, 'is_array') as $key => $data) {
              $new_keys = array();
- foreach ($data as $i => $value) {
+ foreach (array_values($data) as $i => $value) { // This assumes that there are no other placeholders that use the same // name. For example, if the array placeholder is defined as :example // and there is already an :example_2 placeholder, this will generate

In 2012 the US used 360 million gallons per day.
http://www.nacsonline.com/Your...
(360 million gal gas) x (33.4KWh) = about 12,000 GWh = 500 Gigawatts averaged over 24 hours.

Lets assume 25% of the vehicles convert to electric only, and they are 4x as efficient (your 25 mpg versus 100 mpge), thats 31 gigawatts

For comparison, the current US electric power production capacity is around 1100 Gigawatts with current average consumption around 500 Gigawatts. Realistically, you never have more than 80% of capacity online, and that last 10% is expensive gas turbines versus cheap coal.
http://www.eia.gov/electricity...

So after some significant hand waiving, and napkin doodling - I estimate that converting 25% of the cars to electric only will consume somewhere around 10% of the excess generation capacity in the US.

Going by http://www.nacsonline.com/Your..., an average gas station pumps 3000 gallons of gas. Or 4400 in CA http://energyalmanac.ca.gov/ga...

3000 Gallons of gas = about 110 MW*H. Averaged over 24 hours = 4.6 Megawatts.
4400 Gallons of gas = about 161 MW*H. Averaged over 24 hours = 6.7 Megawatts.

Buffering would have to be pretty big, considering surges of customers.

85 KW*hr in 5 minutes is about a megawatt of power. Even at 10,000 volts, you're talking 100 amps.

Agreed. Often the reverse DNS lookup isn't setup correctly, or you've sent too many emails that were flagged as spam.
https://support.google.com/mai...
http://www.rackaid.com/blog/gm...