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World: r3wp

[Tech News] Interesting technology

Henrik
4-Sep-2009
[4226]
I'm not so worried about travel distance for most electric vehicles. 
The cool thing is that it won't take much to replace the batteries 
with better ones eventually. The motor remains the same. With the 
development of graphene batteries, it sounds like we can increase 
battery life to at least twice as much, perhaps 4 times.
Sunanda
4-Sep-2009
[4227]
I am an urban city bicycle commuter.

I'd need a minimum range of 15Km a day.  And I'd want 30km for flexibility.

Also, I suspect the range is dependent on the weather [FAQ says <the 
YikeBike works best in mild climates>] so the actual range would 
be less than the quoted 9-10km for anyone outside of summer conditions. 
That's one of the issues that sunk the Sinclar C5.


Power ..... The FAQ implies it is powered from the electicity mains. 
Average cost EUR0.10 per recharge. Now, if you could set it up as 
a static bike and recharge it by pedalling....
Geomol
4-Sep-2009
[4228]
So unless the electric power come from a windmill or similar, it's 
not really green.
Graham
4-Sep-2009
[4229]
What sunk the C5 was that they were invisible!  Too low in the road.
Geomol
4-Sep-2009
[4230x2]
It's like the danish "Ellert":
http://www.ellert.info/


I see them a seldom time on the danish roads. They're not a big success.
They should concentrate on this:
http://www.moller.com/
;-)
Henrik
8-Sep-2009
[4232]
http://seclists.org/fulldisclosure/2009/Sep/0039.html

Vista/Win 7 users should probably read this.
Geomol
8-Sep-2009
[4233]
-> Humour ;-)
Robert
8-Sep-2009
[4234]
Well Win-7 is not yet there, so use-on-own-risk but Vista is there. 
That's really a cool one.
Henrik
14-Sep-2009
[4235x2]
Haiku OS alpha 1 released. So when is R3 going to be ready for it? 
:-)

http://www.haiku-os.org/
runs pretty OK. seems similar to BeOS, but not much new.
Pekr
15-Sep-2009
[4237]
ClarkConnect (some of us use it) renamed to ClearOS - http://www.clearfoundation.com/ClearOS-Overview/clearos-overview.html
Pekr
16-Sep-2009
[4238]
Google releases Chrome 3.0 - http://www.osnews.com/story/22170/Google_Releases_Chrome_3
amacleod
16-Sep-2009
[4239]
Funny, I have and have been using v3 and did not know...atleast I 
did not notice any big differences or know when it was updated..
Maxim
16-Sep-2009
[4240]
you see, chrome's release channel system is EXACTLY what I explained 
R3's should be.  separate channels releasing versions independently.
Pekr
16-Sep-2009
[4241]
ah, I thought that Max could support the model :-) But - some users 
do ask - what's really new? Google adding few tidbits and raising 
product main version number?
Maxim
16-Sep-2009
[4242x4]
new "whole" versions are often changes deep inside the kernel and 
invisible on the surface.  they probably added support for things 
like html 5 and video, etc.
like FF 3.5
but I'm just speculating.
the iphone can now bragg about having bad applications  :-)

http://www.osnews.com/comments/22161
BrianH
16-Sep-2009
[4246x2]
Google is doing the continuous improvement model, a good one if you 
can afford to autoupdate without prompting. We can't.
Maxim, they already do brag about having bad applications, except 
they call them "apps" for short :)
Maxim
16-Sep-2009
[4248x2]
hahaha
but now you have a professional "sucky application" dev environment 
to make your job easy at it  ;-)
BrianH
16-Sep-2009
[4250x2]
MonoTouch isn't bad - C# actually turned out to be better than Objective 
C for these kind of things.
That's why so many games for the iPhone are written in C#, on the 
other professional C# dev environment for iPhone: Unity3D.
Maxim
16-Sep-2009
[4252]
(.net is bad)  I wonder how they prted .net to the iPhone.
BrianH
16-Sep-2009
[4253x2]
Simple: They didn't. MonoTouch uses iPhone wrapper APIs instead of 
the CLR.
And .NET isn't that bad, depenjding on what you compare it to. Bad 
compared to REBOL - good compared to Java, Flash,  ...
Maxim
16-Sep-2009
[4255x3]
aaaahhh a link just made itself in my head....  novell + mono  <> 
 MS 7 new collaborative mindset... yes...  mono IS .net as an open 
source and actually sanctified by MS as a gift .
so yes, we can actually run .net code on any platform... hell we 
could even import the .net framework and use it in R3 eventually.
(using mono).
BrianH
16-Sep-2009
[4258]
And with extensions, we could even call .NET APIs on Windows, such 
as most of the new Vista/7 APIs.
Pekr
17-Sep-2009
[4259]
BrainH: is recent Extension API enough to link to .NET, or would 
you welcome some other additions, as utypes, for such an interface?
Maxim
17-Sep-2009
[4260x2]
a lot can already be done right now... probably the most complicated 
aspect is using some of the structs which many of the windows api 
funcs use.
and many functions use callbacks too.  some just to implement "I'm 
done" type async stuff.
Graham
17-Sep-2009
[4262]
so this means we can be as accomplished as vb.net ?
Maxim
17-Sep-2009
[4263]
as long as we can map the entire .net spec (probably through mono), 
in theory yes.
Pekr
17-Sep-2009
[4264]
Graham - no, not complicated. It is about what reboltutorial suggests 
- how can REBOL be successful, if it can't integrate to business 
systems? Scala is becoming popular. I would like to use REBOL at 
my work. So - how do I query Active Directory, to get me listing 
of users? Bzzz ... you can't easily do such stuff with REBOL. REBOL 
is cool, but a bit in an isolation.
Graham
17-Sep-2009
[4265]
Me too .. I'd like to use a lot of stuff that I simply can't
Maxim
17-Sep-2009
[4266]
again, SWIG might be the solution here... this whole topic needs 
a lot of research.
Pekr
17-Sep-2009
[4267]
IIRC e.g. Robert is using comlib to access MS Excel API. Without 
it, he could not use REBOL at all for the task given. He does NOT 
code in .NET, he uses its API to get access to systems, apps, and 
their data ...
Graham
17-Sep-2009
[4268]
swig??
Maxim
17-Sep-2009
[4269]
a tool which scans entire repositories of C/C++ code and builds bindings 
for various interpreted language... its one of the reasons python 
gets everything first... its totally integrated into SWIG... for 
example, SWIG was used to build the python OpenGL binding.  its just 
a question of getting the .h or the sources.  and then saying... 
I want to use it in [select language].
Pekr
17-Sep-2009
[4270x2]
how big SWIG is? How do you work using it?
http://www.swig.org/
Maxim
17-Sep-2009
[4272x2]
so building an R3 extension output module for it means OTHERS, non 
rebolers could provide the tools for us for free as part of their 
distros.
its not a simple system AFAICT, but a lot of people are using it, 
and its code parser is VERY complete and is used for VERY LARGE projects.
Henrik
17-Sep-2009
[4274]
I guess you would build extensions per DLL. one for openGL, one for 
SQLite, one for audio, etc. no crisscrossing?
Maxim
17-Sep-2009
[4275]
exactly... in fact, OpenGL provides the .lib files directly, so you 
in fact compile your own OpenGL DLL directly... no need to double 
reference the DLL  :-)