Duas Luas no dia 27 de Agosto... Todo o Mundo está à espera. O Planeta Marte será o mais brilhante no início da noite.. Parecerá tão grande quanto a Lua cheia. Isto acontecerá no dia 27 de Agosto quando o planeta Marte ficar a 34.65M milhas da Terra. Vê o céu no dia 27 de Agosto, 12.30am. Parecerá que a Terra tem 2 luas. A próxima vez que ele ficará tão perto da Terra será em 2287. Partilha com os teus amigos pois NINGUÉM VIVO HOJE voltará a vê-lo assim |
Showing posts with label cience. Show all posts
Showing posts with label cience. Show all posts
8.20.2008
2 LUAS no dia 27 Agosto!!!
1.26.2008
1.22.2008
Mobiles linked to disturbed sleep
Using a mobile phone before going to bed could stop you getting a decent night's sleep, research suggests.
The study, funded by mobile phone companies, suggests radiation from the handset can cause insomnia, headaches and confusion.
It may also cut our amount of deep sleep - interfering with the body's ability to refresh itself.
The study was carried out by Sweden's Karolinska Institute and Wayne State University in the US.
This research suggests that if you need to make a make a phone call in the evening it is much better to use a land line 
Alasdair Philips
Powerwatch
Funded by the Mobile Manufacturers Forum, the scientists studied 35 men and 36 women aged between 18 and 45.
Some were exposed to radiation equivalent to that received when using a mobile phone, others were placed in the same conditions, but given only "sham" exposure.
Those exposed to radiation took longer to enter the first of the deeper stages of sleep, and spent less time in the deepest one.
The scientists concluded: "The study indicates that during laboratory exposure to 884 MHz wireless signals components of sleep believed to be important for recovery from daily wear and tear are adversely affected."
Researcher Professor Bengt Arnetz said: "The study strongly suggests that mobile phone use is associated with specific changes in the areas of the brain responsible for activating and coordinating the stress system."
Another theory is that radiation may disrupt production of the hormone melatonin, which controls the body's internal rhythms.
Electrosensitivity
About half the people in the study believed themselves to be "electrosensitive", reporting symptoms such as headaches and impaired cognitive function from mobile phone use.
But they proved to be unable to tell if they had been exposed to the radiation in the test.
Alasdair Philips is director of Powerwatch, which researches the effects of electromagnetic fields on health.
He said: "The evidence is getting stronger that we should treat these things in a precautionary way.
"This research suggests that if you need to make a phone call in the evening it is much better to use a land line, and don't have your mobile by your bedside table."
Mike Dolan, executive director of the Mobile Operators Association, said the study was inconsistent with other research.
He said: "It is really one small piece in a very large scientific jigsaw. It is a very small effect, one researcher likened it to less than the effect you would see from a cup of coffee."
Last September a major six-year study by the UK Mobile Telecommunications and Health Research Programme (MTHRP) concluded that mobile phone use posed no short-term risk to the brain.
However, the researchers said they could not rule out the possibility that long-term use may raise the risk of cancer.
In the UK, mobile services operate within the frequency ranges 872 to 960 MHz, 1710 to 1875 MHz and 1920 to 2170 MHz.
Thanks to: BBC News.
Blog: Funny But....
12.29.2007
The first computer | O primeiro Computador
The first computer of all times.
O primeiro computador de todos os tempos.
12.24.2007
The big egg | O grande ovo
It's from a chiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiken.
É de uma galiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiinha.
12.23.2007
12.04.2007
12.01.2007
Broken Incandescent Light | Lâmpada partida
Broken Incandescent Light.
Lâmpada partida.
Platters - Smoke Gets In Your Eyes
11.19.2007
Global warming | Aquecimento global
Our planet Earth , is staying like this, the Global Warming is THE PROBLEM of the next generations.
O nosso planeta Terra, está a ficar assim, o Aquecimento Global é O PROBLEMA das próximas gerações.
10.22.2007
10.18.2007
Diagrama da Resolução de Problemas
Como resolver problemas. Sendo responsável, culpado, ou não. Nunca falha.
10.15.2007
10.12.2007
The Nobel Peace Prize 2007
The Nobel Peace Prize 2007
"for their efforts to build up and disseminate greater knowledge about man-made climate change, and to lay the foundations for the measures that are needed to counteract such change"
 |  |
| Photo: Scanpix/Tom Hevezi | |
 1/2 of the prize | 1/2 of the prize |
| Geneva, Switzerland | USA |
| Founded in 1988 | |
| b. 1948 |
Font: http://nobelprize.org
10.11.2007
The Nobel Prize in Physics 2007
The Nobel Prize in Physics 2007
"for the discovery of Giant Magnetoresistance"
 |  |
| Photo: B. Fert, Invisuphoto | Photo: © Forschungszentrum Jülich |
| 1/2 of the prize | 1/2 of the prize |
| France | Germany |
| Université Paris-Sud; Unité Mixte de Physique CNRS/THALES Orsay, France | Forschungszentrum Jülich Jülich, Germany |
| b. 1938 | b. 1939 |
Font: http://nobelprize.org
The Nobel Prize in Chemistry 2007
The Nobel Prize in Chemistry 2007
"for his studies of chemical processes on solid surfaces"
 |
| Photo: © Fritz-Haber-Institut |
| Germany |
| Fritz-Haber-Institut der Max-Planck-Gesellschaft Berlin, Germany |
| b. 1936 |
Font: http://nobelprize.org
Nobel Prize Announcements 2007 - Medicine
The Nobel Prize in Physiology or Medicine 2007
"for their discoveries of principles for introducing specific gene modifications in mice by the use of embryonic stem cells"
 |  |  |
| Photo: Tim Roberts/PR Newswire, © HHMI | Photo: The Press Association Limited | Photo: Scanpix/Dan Sears |
 1/3 of the prize | 1/3 of the prize | 1/3 of the prize |
| USA | United Kingdom | USA |
| University of Utah Salt Lake City, UT, USA; Howard Hughes Medical Institute | Cardiff University Cardiff, United Kingdom | University of North Carolina at Chapel Hill Chapel Hill, NC, USA |
| b. 1937 (in Italy) | b. 1941 | b. 1925 (in United Kingdom) |
in: http://nobelprize.org
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