Cracks in pedestrian bridge possible root of failure

Cracks found in a Florida pedestrian bridge prior to its collapse, killing six, might have indicated the upcoming failure.

A key concrete support truss in the doomed Florida International University pedestrian bridge developed worrisome cracks 10 days before the structure was lifted into place over the Tamiami Trail, photographs and an internal email unintentionally released by the school show.

The documents, released in response to public records requests from the Miami Herald, show that FIU’s construction and engineering team discovered potentially problematic cracks in the bridge earlier than officials have previously acknowledged.

Because of the ongoing investigation we do not yet how the engineering company building the bridge responded to the cracks. They might have analyzed them and dismissed them. Or the might have ignored them entirely.

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Most scientific studies cannot be reproduced

A new report looking at a number of important research studies has found that almost all could not be reproduced, and that the research was often fraught with fraud and “political groupthink.”

For this study, researchers tried to reproduce the results of “53 landmark studies in oncology and hematology.” Researchers were only able to replicate the results of six studies. “People have found similar results in psychology and economics. Different fields are affected different amounts,” Randall told The College Fix. “As a rule of thumb, fields that use statistics intensively are more likely to have troubles than fields that don’t.”

The report hypothesized that there are a number of different reasons for irreproducibility that include such things as “flawed statistics, faulty data, deliberate exclusion of data, and political groupthink,” among other reasons. “Actual fraud on the part of researchers appears to be a growing problem,” the report also states.

The report also singled out the field of climate science as having significant problems along these same lines, especially in areas of its statistical research.

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Mars Odyssey looks down at Curiosity

Gale Crater

The Mars Odyssey team today released an image the spacecraft took of Gale Crater on January 16, 2018. This image, reduced in resolution, is posted on the right and captures the entire region that the rover Curiosity has been traversing for the past six years. If you click on the image you can view the full resolution original.

I have placed Curiosity’s full route since its landing on this image so that we can see where the rover has been. The actual peak of Mount Sharp is a considerable distance to the south and is not visible in this image. (For the full context of the crater and Curiosity’s travels see my March 2016 post, Pinpointing Curiosity’s location in Gale Crater)

The river-like flow feature cutting through the north rim is called Peace Vallis. Scientists think this was formed by water flowing into the crater when the climate of Mars was wetter and there was a lake inside the crater floor.

You can get another perspective of this same view by looking at the panorama looking north that Curiosity took once it climbed up onto Vera Rubin Ridge.

I have said this before, but this Mars Odyssey image once again illustrates how little of Mars we have so far seen. Curiosity has barely begun its climb into the foothills of Mount Sharp. The mile-high mountains that form the rim of Gale Crater are far away, and will not be walked for probably generations. I do not expect any space probe or explorer to enter Peace Vallis for at least a hundred years, since there are so many other places on Mars to visit and Gale Crater has already gotten its first reconnaissance by Curiosity.

The image also gives as a view of Curiosity’s future travels. Based on this October 3, 2016 press release, Curiosity will eventually head into the mouth of the large canyon directly to the south of its present position. Whether the mission will continue up this canyon wash, using it as the route up Mount Sharp, will depend on many things, including the roughness of the terrain in that canyon and the simple question of whether the rover will be able to operate that long.

If it does, the views then from inside that canyon should be quite breathtaking.

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Juno images processed by citizens highlighted at conference

Several Juno images that have been cleverly processed by citizen scientists are being highlighted at a Jupiter conference being held in London this week.

JunoCam images presented at the meeting by citizen scientists Gerald Eichstädt and Seán Doran include an animation showing the evolution of swirling features in the giant planet’s atmosphere and a composite image of Jupiter’s cloud tops.

Gerald Eichstädt, a mathematician working as a software professional, has taken two images from JunoCam and reprojected them to the same vantage point to enable a direct comparison between the images and show the subtle motions within the atmosphere. By modelling the movement of individual pixels in the images, he has created an animation that extrapolates the swirling evolution of the vortices in the atmosphere.

Eichstädt explains: “This animation represents a ‘feasibility test’. Building on this initial work, we can add in more variables that will give us a more detailed description and physical understanding of Jupiter’s atmosphere.”

Seán Doran, in collaboration with Eichstädt, has created a new composite image of Jupiter as seen by Juno as it swung away from Jupiter’s south pole on 1st April 2018. Because Jupiter was larger than JunoCam’s field of view when the main portion of the image was taken, Eichstädt rendered four other images to the same viewing geometry to reconstruct a mosaic of the whole planet. Doran then processed the composite image to balance and blend the overlapping components, sharpen the contrast, and fill gaps.

I have myself highlighted images by both previously at Behind the Black, here and here and here and here. This press release nicely places both in the limelight at last.

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Trump administration shuts down $10 million carbon measuring program at NASA

The Trump administration has shut down a $10 million ground-based carbon measuring program that was being run by NASA.

The program, dubbed Carbon Measuring System (CMS), was a collection of 65 ground-based research projects.

Although Congress fended off the budget and mission cuts [proposed by the Trump administration], a spending deal signed in March made no mention of the CMS. That allowed the administration’s move to take effect, says Steve Cole, a NASA spokesperson in Washington, D.C. Cole says existing grants will be allowed to finish up, but no new research will be supported.

The Science article takes the typical journalistic approach of the past century, innocently assuming that this research is vital and must be funded and that it is a tragedy that it is being cut. Mainstream reporters today seem incapable of exercising any skepticism when it comes to government spending.

Look, this research might be worthwhile. Then again, maybe not. More importantly, why is NASA funding this ground-based climate research? The agency’s task is the exploration of space. This work has nothing to do with that task. If environmental scientists need this work done, they need to go to the appropriate funding sources, which in the federal government would be NOAA, EPA, or the Department of Energy, not NASA.

Meanwhile, it appears that much of this work is going to be made somewhat redundant anyway, with the launch of several carbon monitoring satellites by both NASA and Europe, one of which is already in orbit, according to the article.

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Asteroid that formed in the inner solar system discovered in Kuiper Belt

Astronomers have discovered a carbonaceous asteroid in the distant Kuiper Belt beyond Pluto, even though it likely formed in the inner solar system.

The asteroid’s existence serves to confirm models of the solar system’s formation that say that the orbits of gas giants migrate inward and outward during the formation process, and as they do so they can fling material out of the inner solar system. This asteroid is the first evidence of this process.

At the same time, the data here is quite slim. They have only found one such asteroid. It could be that it was flung into the Kuiper Belt by other processes. If the formation model is correct, many more such Kuiper Belt asteroids will be eventually be found.

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Air Force forces delay in next Falcon Heavy launch

Because the Air Force wishes to do more testing and review of both its payload and the rocket, the second launch of SpaceX’s Falcon Heavy has been delayed several months.

The Falcon Heavy mission for the Air Force will be its first for a paying customer. STP-2 has a number of objectives, including demonstrating the new rocket’s capabilities and launching several satellites.

The launch had been set for June.

That the Air Force is on board Falcon Heavy now indicates that it wants to get this rocket certified for military launches as quickly as possible, thus giving it another heavy lift launch option besides the much more expensive Delta Heavy of ULA. This strategy is good for the Air Force, good for the taxpayer, and good for the launch industry. It will lower launch costs while encouraging competition.

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Customs steals $41K from nurse

Theft by government: When a nurse decided to bring $41K in cash savings to Nigeria to open a medical clinic there, U.S. Customs decided it wanted the money instead and simply stole it.

The questioning threw her off guard. She explained she had legally earned the money and she was alone. Nwaorie, who lives in Katy, Tex., became a U.S. citizen since 1994. She showed her passport, thinking perhaps they were questioning her legal status. The agents took her to a room to search her and her luggage anyway.

Then they seized all $41,377 dollars. “It was like I was a criminal,” she said. “I felt so humiliated, so petrified, too. They were talking among themselves, saying how ‘this is how people smuggle money out of the country. This is how they do it.’”

More than six months later, Customs and Border Protection still has not given back her money.

This, despite the fact that the U.S. attorney’s office in the Southern District of Texas did not bring a civil asset forfeiture case against her or charge her with any crime. The infraction she committed was failing to declare the money to Customs before traveling. According to the agency’s website, “there is no limit on the amount of money that can be taken out” of the country, but if a traveler is carrying more than $10,000 in currency they must fill out a declaration, a rule she said she did not know existed.

Read the article. It illustrates once again the power-hungry and corrupt nature of the federal government. For example, Nwaorie’s suit to get her money back states,

According to documents provided to The Post, prosecutors declined to pursue a case against Nwaorie. The lawsuit states that under the Civil Asset Forfeiture Reform Act, the government should have been required to “promptly release” Nwaorie’s $41,000 to her, no questions asked. Alban contends that forcing a person to agree not to sue the government — and to pay the government’s legal fees if CBP has to enforce the agreement in court — is an “unconstitutional condition.”

Apparently, despite a law that requires them to return the money immediately if no charges are brought, Customs is still refusing to give it back. This is more evidence that government agencies are increasingly willing to nonchalantly ignore the law, when they wish to.

I think some of these government officials should face prison.

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