Posts mit dem Label Science werden angezeigt. Alle Posts anzeigen
Posts mit dem Label Science werden angezeigt. Alle Posts anzeigen

Donnerstag, März 25, 2010

NASA: Solar Cycle Prediction - Sonnen Zyklus Vorhersage

A solar flare observed in Dec. 2006 by NOAA's GOES-13 satellite


May 29, 2009: An international panel of experts led by NOAA and sponsored by NASA has released a new prediction for the next solar cycle. Solar Cycle 24 will peak, they say, in May 2013 with a below-average number of sunspots.

"If our prediction is correct, Solar Cycle 24 will have a peak sunspot number of 90, the lowest of any cycle since 1928 when Solar Cycle 16 peaked at 78," says panel chairman Doug Biesecker of the NOAA Space Weather Prediction Center.

 "Even a below-average cycle is capable of producing severe space weather," points out Biesecker. "The great geomagnetic storm of 1859, for instance, occurred during a solar cycle of about the same size we’re predicting for 2013."  more...

Samstag, Februar 20, 2010

CubeStormer - Roboter löst Rubik's Cube in max. 12 Sekunden


The Worlds Fastest Lego Mindstorms RCX Speedcubing Robot. Built entirely from lego elements now scanning and solving any 3x3x3 Rubik's cube combination in under 12 seconds

Dienstag, Februar 09, 2010

Study: Formation of carcinogens indoors by surface-mediated reactions of nicotine with nitrous acid, leading to potential thirdhand smoke hazards - Studie: Nikonablagerungen in Innenräumen erzeugen bei Luftkontakt krebserregende Substanzen.


"Proceedings of the National Academy of Sciences"


This study shows that residual nicotine from tobacco smoke sorbed to indoor surfaces reacts with ambient nitrous acid (HONO) to form carcinogenic tobacco-specific nitrosamines (TSNAs). Substantial levels of TSNAs were measured on surfaces inside a smoker’s vehicle. more...

Montag, September 21, 2009

3sat-Nano: Störsender verhindern das Schließen von Autotüren. Der Fahrer sollte prüfen, ob sein Wagen verschlossen ist



Hintergrund:
„Ein 60-jähriger Berufsverbrecher soll per Funk versucht haben, Kö - Besucher in Düsseldorf daran zu hindern, ihre Limousinen abzuschließen. Polizisten erkannten den Mann: Er soll mit dieser Masche schon einmal im Jahr 2005 einen Schmuckhändler um Juwelen im Wert von einer Million Euro gebracht haben.“ (Zeitungsmeldungen)

Automatische Funkschließsysteme, wie zum Beispiel als Türöffnung im Auto verwendet, sind gegen Störungen deshalb anfällig, da sie sich in einem gleichberechtigten Frequenzband zum Beispiel 433 Mhz Bereich befinden. Auf dem Markt gibt es Handsprechfunkgeräte, die legal und gleichberechtigt in diesen Frequenzbereichen senden dürfen. Spezielle selbstgebaute Störsender können immer auf dementsprechenden Frequenzen stören.

Fernbedienungen von Autos können beeinflusst werden. Dafür ist es nicht erforderlich den Code der Fernbedienung zu knacken. Viel einfacher geht es mit einem Störsender. Der verhindert das Verschließen der Fahrzeuges, wenn der Fahrzeugbesitzer sein Fahrzeug mit seiner Fernbedienung schließen will, aber nicht darauf achtet, dass keine Rückmeldung, wie Blinken o. ähnliches erfolgt.

Movie/Beitrag on/auf 3Sat

Filmautor: Wolfgang Rathgeber

Donnerstag, Juni 11, 2009

WHO: Influenza pandemic alert raised to phase 6



11 June 2009 -- On the basis of available evidence and expert assessments of the evidence, the scientific criteria for an influenza pandemic have been met. The Director-General of WHO has therefore decided to raise the level of influenza pandemic alert from phase 5 to phase 6. "The world is now at the start of the 2009 influenza pandemic," she said at a press conference today.

Statement of Dr Margaret Chan
Director-General of the World Health Organization


Last update 47

What is Phase 6
Full cover
Press briefings

Robert Koch Institut Germany
Wir gegen Viren
German Mirror
BBC News

Mittwoch, Februar 11, 2009

ISS QSO WITH "Städtisches Gymnasium Herzogenrath, Herzogenrath, German" Sat (Feb 07) at 10:36 UTC - Callsign on earth DR0G and in space OR 4ISS


Sat (Feb 07) at 10:36 UTC ISS "International Space Shuttle" in QSO with "Städtisches Gymnasium Herzogenrath, Herzogenrath, Germany" Recorded by IW7DLE Mario in JN80XP, Brindisi, ITALY VHF 145.800 Mhz - FM

Stadtisches Gymnasium Herzogenrath ARISS Contact listening from Casale Monferrato (Italy)

February 7, 2008 10:36 UTC
Recorded from Casale Monferrato (Italy) JN45FD in School "Alighieri-Trevigi" preparing for a future direct ARISS contact with callsign IZ1PAY.
At the school IK1SLD, I1QEQ, IK1YFE, IW1BND and the cameraman IW1ANL

Samstag, Januar 24, 2009

21/01/2009 - DAY 18 - TEAM MISSING LINK WIN THE SOUTH POLE RACE


Image Copyright: Flash Studios

21/01/2009 - DAY 18 - TEAM MISSING LINK WIN THE SOUTH POLE RACE
Team Missing Link have won the Amundsen Omega 3 South Pole Race. The Norwegians crossed the line and arrived at the Geographic South Pole at 7pm today, completing the race 770km in 17 days and 11 hours. Watching the team cross was a historic and momentous occasion, they linked arms held high in the air as they walked to the Pole and planted a Norwegian flag. They stopped at the Pole and talked about their tremendous journey, the difficulties they have faced and their joy and pride at arriving at the Pole. The Norwegians have once won the race to the South Pole, the first since Scott and Amundsen. Missing Link wanted to commend QinetiQ for making it a fantastic race. After all their hard work Missing Link will now get to spend some time at the Pole, resting, relaxing, eating and enjoying being at the Top of the Bottom of the World.

Team QinetiQ have had a really good day, are feeling in high spirits and expect to arrive at the Pole early tomorrow afternoon. Due South, Danske Bank, South Pole Flag and Southern Lights are all one day closer to the Pole – the air at the South Pole is crackling with excitement for their arrival.

Race Positions

1st South Pole: Team Missing Link
2nd 719km Team Qinetiq
3rd 653km Team Danske Bank
4th 608km Team Due South (they have not travelled as far as south pole flag butthey are closer to the pole than south pole flag)
5th 625km Team South Pole Flag
6th n/a Team Southern Lights
more...

23/01/2009 - DAY 20 - TEAM SOUTHERN LIGHTS ARRIVE

UK Antarktic Heritage Trust

Mittwoch, Dezember 24, 2008

Dec. 24, 1968: Christmas Eve Greetings From Lunar Orbit



1968: The crew of Apollo 8 delivers a live, televised Christmas Eve broadcast after becoming the first humans to orbit another space body.
Frank Borman, Jim Lovell and William Anders made their now-celebrated broadcast after entering lunar orbit on Christmas Eve, which might help explain the heavy religious content of the message. After announcing the arrival of lunar sunrise, each astronaut read from the Book of Genesis. more....

Montag, November 10, 2008

WDR Fernsehen Markt 10.11.2008 : Laptop-Akkus-Heimlicher Rückruf?

Von Wolfgang Rathgeber

Ende Oktober rief die amerikanische Verbraucherbehörde in Zusammenarbeit mit Hewlett-Packard, Toshiba und Dell weltweit rund 100.000 Lithium-Ionen-Akkus zurück. Akkus der betroffenen Baureihe hatten sich überhitzt, Menschen waren verletzt worden. more...

Links Recall:


Hewlett-Packard


Toshiba


Dell

Amerikanische Verbraucherbehörde
Consumer Product Safety Commission (CPSC)

Samstag, Oktober 04, 2008

Murata Manufacturing - MURATA GIRL : DigInfo - Fahradroboter (in)



Murata Manufacturing demonstrated Murata Girl, a unicycle-riding robot, at CEATEC Japan 2008, Japans largest IT exhibition held at Makuhari Messe. Murata Girl is ...