Balloons drift downwind, unless tethered.
If you're not content with that, you need
something like a propeller.
Once you have a propeller, you may as well have
wings because it's awfully inefficient to
push a huge gasbag around.
Re:"Required" email
on
Software Fashion
·
· Score: 2, Interesting
UML is pathetic. It's the OO equivalent of
flowcharts, which thankfully died in the late
1970's. The worst part is that as soon
as the first byte of code gets written, it
becomes out of date and misleading, because
who the hell is going to maintain the UML fiction
when there's code to be written??
And so of course, comically, tools came along that
make UML diagrams out of code. Or try.
Absurd. As a programmer, why on earth would
I want to look at a bunch of silly boxes when I
could look at the source code instead, complete
with comments and algorithms?? Even just
vi with etags is more useful than UML.
What? You say there are no good
comments in the code? Well, then
the project is Doomed, and UML diagrams aren't going
to change that. In the end, the code has to
stand on its own two feet, and no amount
of plastered-on "design methodology" is
going to change that.
PS: I have a compsci degree and 20 years
hardcore experience. If you choose to
tangle with me, beware that I have a
large bookcase of mostly useless fad
methodology books here
ready to throw at your head.
This project cost just 100E6 Euros.
That's about one quarter the
cost of a single shuttle launch, never
mind the astronomical costs of each Apollo
mission.
Personally I'd much rather see 4 new projects
like this and one fewer shuttle launch.
Leaving orbit is not a problem; it just takes a lot longer. Remember, there is no friction
in space.
The point of ion drive is that it has waaaay higher efficiency than chemical rockets. Momentum is mass times
velocity, so by pumping up the velocity you can
correspondingly reduce the mass. That's what
Ion drive does. It spits out atoms at
ridiculous speeds.
Consider a chemical rocket. It very quickly
gets you up to speed, but after that you just coast.
Now consider a drive that has, say, only 1/100th
as much acceleration, but can run 10000 times longer.
It'll take a long time to use up that fuel,
but when you're done you will be going
100 times faster than the chemical rocket.
Obviously Ion drive is only useful once you're
already in orbit, but if time is not an issue
it's hard to beat.
CW gets through better than SSB, but not by much.
You can do almost as well with SSB simply by
speaking slowly and repeating each word three
times. Your throughput will still
be better than a typical CW QSO.
Now, PSK31, is fantastic. I have reliably worked
stations that I can barely hear on
the radio using PSK31. Using 5W output.
...funded by myself, which conclusively proves
that the Microsoft corporation is run by
a bunch of abusive goons whose only goal
is to make money hand over fist with no
respect for legality or morals
while destroying competition and shafting
their captive consumers.
The study goes
on to prove that the concept of
"friendly competition", which surprisingly
many other companies follow, benefits
end users the most.
You can read a handy tech note from GE about
nicad memory here
. As the parent poster points out, it essentially
doesn't exist in real life.
I've been using nicads since they were invented and
have never seen any "memory" effect. I have packs
that are over TEN YEARS OLD that are in heavy use
and still work. All I do is make sure that I don't
overcharge them or run them flat.
Slashdot Mirror
Balloons drift downwind, unless tethered. If you're not content with that, you need something like a propeller. Once you have a propeller, you may as well have wings because it's awfully inefficient to push a huge gasbag around.
And so of course, comically, tools came along that make UML diagrams out of code. Or try.
Absurd. As a programmer, why on earth would I want to look at a bunch of silly boxes when I could look at the source code instead, complete with comments and algorithms?? Even just vi with etags is more useful than UML.
What? You say there are no good comments in the code? Well, then the project is Doomed, and UML diagrams aren't going to change that. In the end, the code has to stand on its own two feet, and no amount of plastered-on "design methodology" is going to change that.
PS: I have a compsci degree and 20 years hardcore experience. If you choose to tangle with me, beware that I have a large bookcase of mostly useless fad methodology books here ready to throw at your head.
This project cost just 100E6 Euros. That's about one quarter the cost of a single shuttle launch, never mind the astronomical costs of each Apollo mission.
Personally I'd much rather see 4 new projects like this and one fewer shuttle launch.
The point of ion drive is that it has waaaay higher efficiency than chemical rockets. Momentum is mass times velocity, so by pumping up the velocity you can correspondingly reduce the mass. That's what Ion drive does. It spits out atoms at ridiculous speeds.
Consider a chemical rocket. It very quickly gets you up to speed, but after that you just coast.
Now consider a drive that has, say, only 1/100th as much acceleration, but can run 10000 times longer. It'll take a long time to use up that fuel, but when you're done you will be going 100 times faster than the chemical rocket.
Obviously Ion drive is only useful once you're already in orbit, but if time is not an issue it's hard to beat.
Now, PSK31, is fantastic. I have reliably worked stations that I can barely hear on the radio using PSK31. Using 5W output.
The study goes on to prove that the concept of "friendly competition", which surprisingly many other companies follow, benefits end users the most.
So what's the "spintronics" formula?
I've been using nicads since they were invented and have never seen any "memory" effect. I have packs that are over TEN YEARS OLD that are in heavy use and still work. All I do is make sure that I don't overcharge them or run them flat.