Follow Slashdot blog updates by subscribing to our blog RSS feed


Forgot your password?

Comment: Thinking in kiloseconds is still hard (Score 1) 295

by tepples (#49605307) Attached to: Tesla To Announce Battery-Based Energy Storage For Homes

But how would that fix the units in customers' heads? "If I turn on ten 100 watt appliances, I'm using a kilowatt. Easy so far. And if I leave them on for an hour, I'm billed for one kilowatt hour." Until you get customers to think about their energy use using kiloseconds instead of hours and megaseconds instead of weeks, you're not going to be able to avoid anthropic units entirely.

Comment: PHP: The Good Parts (Score 1) 158

PHP, and that means your security is dead right there

In theory, it should be possible to adopt good coding practices that leave out all the bad parts of PHP, in much the same way that Douglas Crockford recommends for JavaScript in his book JavaScript: The Good Parts. If you think the PHP interpreter inherently has poor security despite good coding practices, have you tried notifying the operators of Wikipedia?

Comment: WebSockets (Score 1) 205

The "client-server" apps were better than Web 2.0

Could they run on a Mac even if the developer used Windows? Or vice versa?

and used less bandwith.

In theory, a web application that uses HTML5 WebSockets could be as lean as a native client-server app. But in practice, it's not done because it would increase the developers' costs, including cost of providing a fallback for browsers that lack WebSockets, more than it would decrease the cost of providing the service.

Comment: Who pays for SI transition? (Score 1) 295

by tepples (#49601017) Attached to: Tesla To Announce Battery-Based Energy Storage For Homes

Who pays for the transition to "the internationally standardized units"? Meters would need to be replaced with pedantically SI-compliant meters. And besides, power in practice is correlated with daylight and climate conditions, which recur on cycles closer to 86,400 seconds and 31,556,952 seconds respectively. These numbers are far from powers of two and thus don't quite fit into the decimal SI. Who pays to teach people to multiply and divide by 86,400 and and 31,556,952 in their heads to estimate energy from power or vice versa over the course of a day or year?

Comment: Do lab mice even get names? (Score 1) 340

For example, the study using mice that showed that 10ppb As in drinking water harmed "mothers and their offspring" (mouse mothers and baby mice, not humans) didn't have to list the names of the mice, only aggregate numbers.

Do lab mice even get names? Or is it just the mice on the "outside", like the fictional Elizabeth Brisby?

FORTRAN rots the brain. -- John McQuillin