All posts by kobaan

Happy New Year – Fireworks

Happy New Year – Fireworks

Happy New Year to all of you !!!


Best wishes for 2007 ! And may the force be with you.

Kobaan.

23rd Chaos Communication Congress

The annual
Chaos Communication Congress, will be held 27th to 30th december in
Berlin.

23c3_320x240px_23
This year there will something very special, since internet live
streaming of events reached its limits last year, the Chaos
Computer Club folks managed to get a license for broadcasting
events in DVB-T. And they broadcast their selfmade DVB stream by
themselves with a selfmade
DVB-T transmitter
, and all this for less than 1000 Euros.

To be sure that noone gets disturbed they got a licensed fequency
and are allowed 5 Watts sending power, enough to cover direct eye
contact distance to Alexanderplatz in Berlin. Isn’t that great. I
guess a lot of TV station get pissed when they recalculate their
investment for their DVB equipment. Winking

The agenda is still not final, but a major issue will be trust and
security, especially dedicated to voting machines, RFIDs, DRM,
DataMining, forensics, electronic passports, bluetooth, biometric,
console hacking, VoIP, Web2.0 and the end of traditional TV.

Be curious….

23rd Chaos Communication Congress

The annual
Chaos Communication Congress, will be held 27th to 30th december in
Berlin.

23c3_320x240px_23
This year there will something very special, since internet live
streaming of events reached its limits last year, the Chaos
Computer Club folks managed to get a license for broadcasting
events in DVB-T. And they broadcast their selfmade DVB stream by
themselves with a selfmade
DVB-T transmitter
, and all this for less than 1000 Euros.To be sure that noone gets disturbed they got a licensed fequency
and are allowed 5 Watts sending power, enough to cover direct eye
contact distance to Alexanderplatz in Berlin. Isn’t that great. I
guess a lot of TV station get pissed when they recalculate their
investment for their DVB equipment. Winking

The agenda is still not final, but a major issue will be trust and
security, especially dedicated to voting machines, RFIDs, DRM,
DataMining, forensics, electronic passports, bluetooth, biometric,
console hacking, VoIP, Web2.0 and the end of traditional TV.

Be curious….

Real tough Sudoku

Sudoku became
world famous in the last months, although it exists since 18th
century when swiss mathematician Leonhard
Euler
discovered a puzzle game called Latin Square.
3doku
The name Sudoku comes from the japanese sentence:
数字は独身に限る
,
meaning as much as: limit to unique numbers.
Although published in various newspapers over the years, it reached
world wide fame quite recently.Meanwhile there are also a lot of more complex sudokus for “the
advanced puzzle fan”.

Sudoku
with 16 sqaures and numbers.
sudoku4
Sudoku
as jigsaw puzzle, non square based:
sudoku-puzzle
And for the real freaks, pre-requistiting a computer, and probably
a 3D graphics card:
The ultimate 3-dimensional Sudoku called:
3doku, available for Mac and PC.
3doku
If you’re interested in the different mathematical approaches to
solve a sudoku take a look at wikipedia.

Real tough Sudoku

Sudoku became
world famous in the last months, although it exists since 18th
century when swiss mathematician Leonhard
Euler
discovered a puzzle game called Latin Square.
3doku
The name Sudoku comes from the japanese sentence:
数字は独身に限る
,
meaning as much as: limit to unique numbers.
Although published in various newspapers over the years, it reached
world wide fame quite recently.

Meanwhile there are also a lot of more complex sudokus for “the
advanced puzzle fan”.

Sudoku
with 16 sqaures and numbers.
sudoku4
Sudoku
as jigsaw puzzle, non square based:
sudoku-puzzle
And for the real freaks, pre-requistiting a computer, and probably
a 3D graphics card:
The ultimate 3-dimensional Sudoku called:
3doku, available for Mac and PC.
3doku
If you’re interested in the different mathematical approaches to
solve a sudoku take a look at wikipedia.

Journey to the moon/space/orbit whatever…

Finally Jules Verne’s idea of shooting
a man to the moon will become reality, almost.
verne_gun
The US AirForce is building a 2.4km long magnetic accelerator,
which shall be used to shoot up to 100kg of “baggage” into the
orbit, thus saving the cost of the expensive supportflights with
traditional rockets. Although it will not be possible to transport
human beings or any other lifeform with this “vehicle” into space,
it might work fine for already dead meat Winking or miniature
satellites.The principle of the “cannon” is quite familiar to the particle accellerator at
CERN
, which just finished installing all the superconductor
magnets of its 25km ring.

I can already see the headline: Chinese spy satellite seriously hit
by frozen french fries….

Journey to the moon/space/orbit whatever…

Finally Jules Verne’s idea of shooting
a man to the moon will become reality, almost.
verne_gun
The US AirForce is building a 2.4km long magnetic accelerator,
which shall be used to shoot up to 100kg of “baggage” into the
orbit, thus saving the cost of the expensive supportflights with
traditional rockets. Although it will not be possible to transport
human beings or any other lifeform with this “vehicle” into space,
it might work fine for already dead meat Winking or miniature
satellites.

The principle of the “cannon” is quite familiar to the particle accellerator at
CERN
, which just finished installing all the superconductor
magnets of its 25km ring.

I can already see the headline: Chinese spy satellite seriously hit
by frozen french fries….

Good news, it works. Bad news, it works.

Bad awakening for Mac users, Apple
fixed a bug.
andy-scared
It took almost 2 years for Apple to release a security fix so that
it’s not anymore possible to hijack the builtin or even the
external USB camera from within a webpage.
At least everyone believed that this issue has been fixed in the
security update 2006-008, and people became already sad about
missing the feature to preview realtime effects on local video like
on this page: (only works for Mac people.)But there’s also good news. It still works.

Oh wait, or is it bad news ?

Anyway the good news is, that the bad news of a killed feature is
not true, and that the security fix works, as your realtime video
cannot be sent via ajax/javascript or a java applet to someone you
don’t even know by just accessing someone’s evil website.

How do we check that ?
Apple doesn’t say anything about it.

So the real good news is, enjoy the feature as long as you’re not
sitting naked in front of your mac. Winking

Oh, uhh, aehh did I mention the bad news is, we don’t know if its
really fixed, or apple became so much interested in your homevideos
that they patched something in your system to get much sharper
pictures of you than anyone else does. Winking

Good news, it works. Bad news, it works.

Bad awakening for Mac users, Apple
fixed a bug.
andy-scared
It took almost 2 years for Apple to release a security fix so that
it’s not anymore possible to hijack the builtin or even the
external USB camera from within a webpage.
At least everyone believed that this issue has been fixed in the
security update 2006-008, and people became already sad about
missing the feature to preview realtime effects on local video like
on this page: (only works for Mac people.)

But there’s also good news. It still works.

Oh wait, or is it bad news ?

Anyway the good news is, that the bad news of a killed feature is
not true, and that the security fix works, as your realtime video
cannot be sent via ajax/javascript or a java applet to someone you
don’t even know by just accessing someone’s evil website.

How do we check that ?
Apple doesn’t say anything about it.

So the real good news is, enjoy the feature as long as you’re not
sitting naked in front of your mac. Winking

Oh, uhh, aehh did I mention the bad news is, we don’t know if its
really fixed, or apple became so much interested in your homevideos
that they patched something in your system to get much sharper
pictures of you than anyone else does. Winking