Please create an account to participate in the Slashdot moderation system

 



Forgot your password?
typodupeerror
×

Comment How about a "school bus equivalent"? (Score 1) 437

What about groups of autonomous vehicles containing kids that are monitored on their
way to and from school by the school or some service or authority? This authority is
responsible for maintaining contact with the vehicle and dispatching help if there is a problem.

Kind of like a 3rd-person view taxi or schoolbus.

Comment Re:How about Silicone oil ? (Score 1) 102

Their fluid is boiling, phase transition takes a lot of heat out without pumping anything.

That's the key point.

If you have a pot on your stove filled with water at 211 degrees F, it will absorb 1000 calories and then the pot will be at 212 F.
But then the pot will absorb 540,000 calories before it gets to 213 F.

Comment Re:I wonder... (Score 1) 102

It seems to be 99kJ/kg at it's boiling point of 45C/120F

For all practical purposes, I just thought coolants increase in temperature to their boiling point and just stay there (or a little higher if under pressure like a car radiator or pressure cooker)

That would mean systems with this fluid would reach 120F and basically go no further (unless ALL the coolant boiled off, which I doubt would happen)

Comment Re:One of the oldest semantic games played on /. (Score 2) 126

I see this old semantic game blooms anew on Slashdot. "It isn't stealing". Fine. It's fraud. Don't worry that your reputation is shot and/or somebody else is trading on your good name. It isn't stealing. Oh... the victim feels much better now.

I don't understand; what are you complaining about? You're correct. It isn't theft, it is fraud. So why call it theft when it's clearly something else?

If you call it by the correct name, you'll get community support, even among the "copying is not theft" crowd. OTOH, if you call it stealing, then you'll get mired in a gigantic semantic dogpile as hundreds of people re-litigate what constitutes "stealing."

We don't even need to raise the "Is it stealing?" question in this case. It's clearly fraud. So call it "fraud." Geez...

Government

Can the ObamaCare Enrollment Numbers Be Believed? 723

An anonymous reader writes "When the Obama administration announced on April 1 that an estimated 7.1 million had signed up for ObamaCare by the end of March, it seemed a nearly impossible achievement. To reach 7.1 million, sign-ups had to rocket up by 67% in just one month. That's astounding enough, but an IBD review of existing ObamaCare enrollment data shows that the mathematical challenge of reaching 7.1 million sign-ups was even tougher."

Comment Re:It's not the thing... (Score 1) 90

But people naturally compare them anyway.

You have to admit there are lots of tasks that don't require realtime control where people could choose either system.

I think the Arduino shield system is brilliant, and the equivalent on the Raspberry Pi is not as well thought out. This is the biggest shame of all.

My top few wishes for the Pi would be:
- a well-thought-out, open shield system
- 4 support holes at the corners instead of 2 in the middle
- maybe a better case design - all ports along one side maybe?
- an SD card that would insert fully

The Raspberry Pi is wonderfully standardized, but the Arduino seems to evolve in a darwinian fashion because many vendors can make them.

The Arduino comes up a little short in tcp/ip connectivity, where the raspberry pi is brilliant from the start.

Comment Re:Drama queens... (Score 1) 465

Professionals do the job and get paid.

They did neither.

End of argument.

"Hey, kid. If you get down in that mine, dig out the coal, and bring it back to me, I'll pay you. ...What? You want a light? Why did you take the job if you don't have the tools to do it? Batteries cost money, kid. ...What? What's all this whining about dust and poisonous gases and how you can't carry more than two lumps because you're only six years old? I'm paying you; do your job. You don't want to be thought of as unprofessional, do you?"

What self-serving sophistry.

Comment Re:Drama queens... (Score 1) 465

"Hi. Welcome to this brightly-lit, strangely decorated cage. For the next four days, you'll be trying to design and write a video game while we surround you with cameras, force you through irrelevant tasks, and poke at you with sticks. Be sure to act professional throughout it all."

"Contracts" or not, the developers' reaction was the correct one.

Slashdot Top Deals

I've noticed several design suggestions in your code.

Working...