Tag: science

On Wednesday Apophis will pass the Earth at a distance of 9 million miles, allowing astronomers to gather more data about this asteroid’s orbit and composition.

9:01 am

On Wednesday Apophis will pass the Earth at a distance of 9 million miles, allowing astronomers to gather more data about this asteroid’s orbit and composition.

Having crossed outside Earth’s orbit, Apophis will appear briefly in the night-time sky. Wednesday 9 January will afford astronomers the rare opportunity to bring a battery of telescopes to bear: from optical telescopes to radio telescopes to the European Space Agency’s Infrared Space Observatory Herschel. Two of the biggest unknowns that remain to be established are the asteroid’s mass and the way it is spinning. Both of these affect the asteroid’s orbit and without them, precise calculations cannot be made.

Leave a comment

New research suggests that the high radiation experienced by astronauts on interplanetary journeys could accelerate the onset of Alzheimer’s.

9:32 am

New research suggests that the high radiation experienced by astronauts on interplanetary journeys could accelerate the onset of Alzheimer’s.

Some caveats: This research was done on Earth with mice. It also assumes that it will be impossible to protect astronauts from all types of radiation while on their journey.

Leave a comment

Is the recently discovered Imperial tomb in China too dangerous to enter?

4:47 pm

Is the recently discovered Imperial tomb in China too dangerous to enter?

After discovering a secret palace hidden in China’s first emperor massive burial complex, Chinese technicians are nervous. Not because Qin Shi Huang’s tomb is the most important archeological discovery since Tutankhamun, but because they believe his burial place is full of deadly traps that will kill any trespassers. Not to talk about deadly quantities of mercury.

The secret courtyard-style palace tomb is a mind-numbing discovery. Situated in the heart of the Emperor’s 22-square-mile (56-square-kilometer) mortuary compound guarded by more than 6,000 (and counting) full-size statues of warriors, musicians and acrobats, the buried palace is 2,263 by 820 feet (690 by 250 meters). It includes 18 courtyard houses overlooked by one main building, where the emperor is supposed to be. The palace—which has already been partially mapped in 3D using volumetric scanners—occupied a space of 6,003,490 cubic feet (170,000 cubic meters). That’s one fourth the size of the Forbidden City in Beijing—for just one tomb.

Experts believe that the 249-foot-high (76-meter) structure covered with soil and kept dry thanks to a complex draining system, hides the body of the emperor and his courtiers. Nobody knows what’s the state of their bodies, but one of the leading archeologists believes that they are most likely destroyed by now.

3 comments

Half the facts you know are wrong.

9:43 am

The uncertainty of science: Half the facts you know are wrong.

Facts are being manufactured all of the time, and, as Arbesman shows, many of them turn out to be wrong. Checking each one is how the scientific process is supposed to work; experimental results need to be replicated by other researchers. So how many of the findings in 845,175 articles published in 2009 and recorded in PubMed, the free online medical database, were actually replicated? Not all that many. In 2011, a disquieting study in Nature reported that a team of researchers over 10 years was able to reproduce the results of only six out of 53 landmark papers in preclinical cancer research.

In 2005, the physician and statistician John Ioannides published “Why Most Published Research Findings Are False” in the journal PLoS Medicine. Ioannides cataloged the flaws of much biomedical research, pointing out that reported studies are less likely to be true when they are small, the postulated effect is likely to be weak, research designs and endpoints are flexible, financial and nonfinancial conflicts of interest are common, and competition in the field is fierce. Ioannides concluded that “for many current scientific fields, claimed research findings may often be simply accurate measures of the prevailing bias.”

Or in other words, anyone who claims the “science is settled” on any major scientific issue that other scientists are hotly debating is lying to you.

One comment

The twelve best solar events in 2012

6:01 pm

An evening pause: Below is a compilation of the twelve most spectacular solar flares of 2012, in chronological order. A detailed explanation of each can be found here.

Though the Sun continues to go through the weakest sunspot maximums in more than a hundred years, we now have some very sophisticated instruments in space that are able to observe whatever happens. And the Sun is still a raging inferno of billions of hydrogen bombs, all going off at once and continuously. Even during a weak minimum it still is more powerful than we can imagine. Consider: The Earth would be nothing mores than a small dot in each of these flares.

Leave a comment

NASA has named the impact site where the two GRAIL spacecraft hit the Moon today after American astronaut Sally Ride.

6:01 pm

NASA has named the impact site where the two GRAIL spacecraft hit the Moon today after American astronaut Sally Ride.

Though this is a nice gesture, the entire public relations campaign surrounding the GRAIL impact today has been one of the more overhyped exercises at NASA. The impact is going to provide very little new science, and is necessary because no lunar orbit is stable and the spacecraft will eventually crash into the Moon anyway. Better to do it under controlled circumstances. To make such a big deal about it however is hardly interesting, especially since this has been done repeatedly by practically every lunar orbiter.

Leave a comment

A preliminary copy of the next IPCC report has been leaked.

10:27 am

IPCC figure

A preliminary copy of the next IPCC report has been leaked.

In the coming days there will be much discussion of this document — such as how it appears the IPCC has finally acknowledged the importance of the Sun’s variability to climate change — but for now, I post on the right what is probably its most important admission. This graph from the leaked report shows the rise in global temperatures as predicted by all the different climate models used by the IPCC, compared to actual observed temperatures. As you can see, since the late 1990s there has been no significant increase in global temperature. Moreover, the observed data now sits outside the predicted margin of error for all the models, making every single one of these models completely wrong.

But don’t worry, these facts aren’t important. In fact, any facts that contradict the religion of global warming must be ignored. It is far more important to shut down all industry and live like cavemen, just because we have faith in our belief in global warming.

29 comments

China’s Chang’e 2 lunar probe, now out of lunar orbit, did a fly-by of the 3 mile wide asteroid Toutatis as it zipped past the Earth last week, resulting in some spectacular images.

2:17 pm

China’s Chang’e 2 lunar probe, now out of lunar orbit, did a fly-by of the 3 mile wide asteroid Toutatis as it zipped past the Earth last week, resulting in some spectacular images.

Launched on October 1, 2010, Chang’e 2 orbited the Moon for 8 months before being redirected last year to the L2 Lagrange point, roughly a million miles on the side of Earth opposite the Sun. But when it left L2 last April, Western observers suspected the spacecraft was heading deeper interplanetary space. It didn’t take long to realize that Chang’e 2 was bound for Toutatis.

This is an example of a very smart re-use of a space probe.

By the way, the first fly-by of another planet took place fifty years ago this week.

One comment

Climate experts are now calling for an end to the regularly scheduled mega-climate summits.

11:31 am

Good news: Climate experts are now calling for an end to the regularly scheduled mega-climate summits.

That these summits haven’t accomplished anything but allow climate bureaucrats to burn tons of airplane fossil fuel to gather in some of the world’s nicest warm weather cities during the winter — thereby making them all look like hypocrites — is not the reason these experts want to cancel the summits. They want to cancel the summits because the summits aren’t getting them the results they want: strict regulation on the lives of everyone else.

Nowhere does the article address the simple fact that in the past three years, since the release of the climategate emails, the creditability of the entire climate change field has gone to zero. The public doesn’t buy their sales pitch anymore, and thus neither do politicians, which is why no one is willing to make a deal at these summits. No one believes anything these climate experts are saying, especially since they have refused to clean up the corruption within their field.

5 comments

The solar scientists change their prediction again

12:39 pm

Today, with little fanfare, the solar scientists at the Marshall Space Flight Center adjusted slightly downward their prediction for the upcoming solar maximum, from a sunspot number of 73 down to 72. This was the fourth month in a row that they have revised their prediction.

The Marshall scientists do not archive their predictions, which I suspect is a convenient way of preventing people from noticing how much they change them. I however like to archive these revisions. Below is a full list of their changes during the past two years:
» Read more

One comment

Climate models still fail to predict mid- and long-term trends in the climate.The uncertainty of science: Climate models still fail to predict mid- and long-term trends in the climate.

12:07 pm

The uncertainty of science: Climate models still fail to predict mid- and long-term trends in the climate.

To test the forecast quality of the 23 most important climate models, the AWI scientists investigated how well these models were able to reproduce atmospheric teleconnection patterns over the past 50 years. A total of 9 known circulation patterns were investigated retrospectively, four of which in special detail. The result was that the spatial distribution of atmospheric teleconnection patterns is already described very well by some models. However, none of the models were able to reliably reproduce how strong or weak the Icelandic Low, Azores High and other meteorological centers of action were at a particular time over the last 50 years, i.e. the temporal distribution patterns. [emphasis mine]

The “centers of action” are large global weather patterns like el Nino that can influence the global climate worldwide. Most climate scientists believe that global warming will manifest itself first in these centers of action. Yet, no climate model was able to predict what we know actually happened during the past fifty years with these large centers.

But we must ignore this fact and base all our climate law on what these models predict. What could go wrong?

In related news, the United Kingdom had its coldest autumn since 1993 this year. And if you look at the temperature graph at the link, covering autumn temperatures since 1910, you will notice hardly any change, up or down.

3 comments
1 … 209 210 211 212 213 … 277