New Global Topographic Map

Los Angeles Basin -- Aster Imagery

Los Angeles Basin -- Aster Imagery

On the next to last day of June, NASA and Japan’s Ministry of Economy, Trade and Industry released a new topographic map and dataset that constitutes the most comprehensive ever publicly available map of surface elevations of the earth. The collection, technically named the Advanced Spaceborne Thermal Emission and Reflection Radiometer (ASTER) Global Digital Elevation Model (GDEM), is available on the NASA website here, where it is also described in greater detail. The dataset and model were created by processing and stereo-correlating the 1.3 million-scene ASTER archive of optical images collected by NASA’s Terra satellite, and covers the land surface of the earth between 83 degrees North and 83 degrees South latitudes at a resolution of 30 meters. It is presented as a set of 23,000 tiles of one-degree-by-one- degree. In the colorized version, low elevations are purple, medium elevations are greens and yellows, and high elevations are orange, red and white. For further information, see the NASA site referenced above or see Science Daily’s summary of the release here.

For a demonstration of how the model might be used in more popular applications, check out NASA’s Cruising Over California.

Published in: on July 1, 2009 at 4:31 pm Leave a Comment

The Great Dust Bowl

A dust storm approaches Elkhart, Kansas, in May 1937

A dust storm approaches Elkhart, Kansas, in May 1937

The Great Dust Bowl of the 1930s, exacerbating the pain and suffering of the Great Depression and seared into the consciousness of America by John Steinbeck’s The Grapes of Wrath and a host of iconic photographs, has long challenged climatologists to account for its intensity and persistence. Now a new study encapsulated in this brief report on “Predicting Droughts With Greater Certainty” in Science Daily adds to our understanding of the causes and conditions of the Great Dust Bowl. It also exposes new avenues for enhancing current climate models by adding depth to the data which grounds their validity.

For more images of Dust Bowl Kansas and neighboring states, visit Kansas State University’s multimedia The Dust Bowl

Published in: on June 8, 2009 at 12:19 pm Leave a Comment

Summer Reading Program Begins

Today at 10 AM the Haysville Community Library Summer Reading Program for 2009 kicked off with the rousing initial performance by Thad Beach before an audience of 142 enthusiastic kids and 27 parents.

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Next week two performances are scheduled: Jo Ho on Tuesday June 9th at 10 AM, and Mad Science on Thursday June 11th at 10 AM.

We hope to see you there.

Published in: on June 4, 2009 at 10:36 am Leave a Comment

The Big Move — Day 3

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Published in: on June 3, 2009 at 6:25 pm Leave a Comment

. . . and Continues

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Published in: on June 2, 2009 at 12:56 pm Leave a Comment

. . . and Continues

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Published in: on June 1, 2009 at 6:30 pm Leave a Comment

The Big Move Begins . . .

Volunteers and library staff members began the final inventory and packing of the library for the big move to the brand new Haysville Community Library. Later this week or the next the new shelves should be delivered and assembled. Inventory – a long and involved process – will consume the next two weeks, and as we evaluate, count and assess each and every book in the collection, we’ll also be packing and moving. By the end of the month, we’ll back in operation in our new location.

In the meantime, of course, the Summer Reading Program continues at the old library, as do sales of citywide cleanup permits. For details on these, see the immediately preceding post.

Here’s a little of what transpired at the beginning of our first inventory and moving day:

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Published in: on at 12:03 pm Leave a Comment

We’re Moving

Today is the last day for the old library to be open for all activities. Beginning tomorrow morning, the old library will be open only from 9 AM to 3 PM exclusively for our Children’s Summer Reading Program (and of course also for all scheduled Summer Reading Program workshops and events – check here for the details).

We’ll also continue to sell permits for the Haysville Citywide Cleanup (for details, see our earlier post on Citywide Cleanup).

During the month of June we’ll be conducting a complete inventory of the library, packing, moving and setting up operations in the new library at 210 South Hays. Volunteers are welcome to aid us in the move. Our volunteer orientation session will start at 9 AM Monday June 1st.

As you can see, the process is already under way:

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We’ll do our best to keep you informed about the status of our move and the date and time of our reopening — expect it on or before the 1st of July. Check the library website and the HCL blog frequently for updates and items of interest.

Published in: on May 31, 2009 at 1:39 pm Leave a Comment

Abraham Lincoln

Abraham Lincoln (George McGovern)

A Brief Review of George McGovern’s Abraham Lincoln

George McGovern – former Democratic senator from South Dakota and losing presidential candidate in the 1972 election – has written a short, solid, workmanlike biography of Abraham Lincoln as part of Henry Holt and Company’s The American Presidents Series (see previous reviews of volumes in the series on Grover Cleveland, Ulysses S. Grant, Rutherford B. Hayes, James Buchanan and Thomas Jefferson). A mere 155 pages in length and compiled from a careful and thorough reading of the secondary sources, McGovern’s biography is not so stunningly incisive as James McPherson’s very brief Abraham Lincoln, nor so voluminous as many of the new biographies appearing in this bicentennial year of Lincoln’s birth, but is nevertheless a good introductory work for those with limited time seeking to learn more about America’s greatest president.

If McGovern’s biography has a conspicuous weakness it is the short shrift which he gives to Lincoln’s role as commander-in-chief and the course of the war — his discussion of battlefield developments is somewhat confused and discontinuous – but this is a relatively minor flaw in a book which must necessarily sacrifice some detail for the sake of brevity. If the book has a strength, it is McGovern’s emphasis upon some aspects of Lincoln’s life and presidency which receive little attention in other compressed biographies. For instance, as in this excerpt, Lincoln’s other legislative achievements beyond the imperatives of the war:

“As he prepared to deliver his annual message to Congress in December, Lincoln reflected on the legislative achievements of his first term, which had been all but overlooked because of the country’s preoccupation with the war. Many new laws, passed by the Republican-controlled Congress, would prove to have long-lasting consequences as the nation pushed relentlessly westward, settling new lands and expanding its borders.

“A series of financial measures had been enacted to fund the war, which was costing $2 million daily. Under the direction of the Treasury Department, and with the administrative guidance of the Philadelphia banker Jay Cooke, the government had issued war bonds (which, over the course of the war, would raise about $3 billion for the Union, or 65 percent of its revenue). Needing an unrestricted currency supply to fuel the bond program, Congress passed the Legal Tender Act in 1862, which authorized the production and distribution of paper money, known popularly as greenbacks.

“More significantly, the Internal Revenue Act of 1861, the first federal income tax in American history, assured the financial community that the government would have a reliable source of income to pay the interest on war bonds. Subsequent Revenue Acts of 1862 and 1864 created moderately progressive tax brackets and set rates at 5, 7.5, and 10 percent. By the end of the war nearly one in ten American households (mostly in the affluent states in the industrial Northeast, the section of the country that held most of the wealth) paid an income tax.

“Also enacted was an excise tax system that imposed taxes on almost everything: liquor, professional licenses, carriages, yachts, medicines, corporations, stamps, and the like. The Morrill Tariff Acts of 1860 and 1861 doubled the amounts of taxes collected on dutiable items brought into the United States, while at the same time protecting the steel, iron, mineral, beef, and fishing industries, among many others. Congress also enacted the National Banking Acts of 1863 and 1864, which established a system of national charters for banks and encouraged the implementation of a national currency. They also mandated that one-third of a new bank’s notes had to be backed by federal bonds, thus assisting the war effort. When state banks balked at the new regulation, a provision of the 1864 Act imposed a 10 percent tax on state bank notes; state banks then had to choose to comply or go out of business. Overall, the tax system quickly grew so large that the Bureau of Internal Revenue was created to administer it. These finance measures reversed the downward trends instituted by Democratic Congresses of the 1840s and 1850s, and fulfilled Republican promises from the campaign of 1860.

“During Lincoln’s first term, the Republican Congress also passed the Homestead Act of 1862, which made public lands in the West available for small farmers. For decades the distribution of these lands had been the subject of great debate and controversy, in Washington and among the American population. Under the new Homestead Act, any adult citizen who headed a household could win title to 160 acres of frontier land simply by living on it for five years. By the end of the war more than fifteen thousand homestead claims had been filed, with more to come. While some portion of the land ended up in the control of speculators and railroads, many settlers stuck it out, raised their families, and harvested crops, thereby establishing a framework for the large-scale development of vast Western territories over the course of the next forty years. The 160-acre tracts created the model of the American family farm for the next century.

“Also in 1862 Lincoln signed into law the Morrill Land Grant College Act, named for Senator Justin Morrill of Vermont. The statute transferred federal lands to states to be sold for the establishment and support of agricultural and mechanical arts colleges, which paved the way for the establishment of state university systems throughout the Midwest and West. The program was set up proportionately, dependent upon the number of congressional representatives, and eventually involved the transfer of nearly seventeen million acres of land. That same year, Congress and Lincoln established the Department of Agriculture to look after the interests of farmers (although the department would not gain cabinet-level status for some twenty years.).

“These three landmark acts – the Homestead Act, the Land Grant College Act, and the creation of the US Department of Agriculture, all enacted in the middle of the Civil War – formed a tripod on which much of America’s great agricultural success has rested from that day until the present.

“also of great importance was the passage of the Pacific Railway Acts of 1862 and 1864. These laws provided for the construction of a railroad and telegraph line from Omaha to Sacramento for the movement of passengers and freight as well as government use for postal, military, and other purposes. All told, the Union Pacific and Central Pacific railroads received more than 175 million acres from the government for use as right-of-way, and began construction. Utilizing thousands of immigrant laborers from Ireland, Germany, Italy, and China, and with the Union Pacific pushing west and the Central Pacific pushing east, the two lines met and merged near Ogden, Utah, in 1869, finally and forever linking the two coasts. Lincoln’s support for all these laws was a reflection of the Whig principles that had nurtured him: the belief that the federal government could and should play an important role in the public welfare.”

Published in: on May 30, 2009 at 2:05 pm Leave a Comment

How To Live On Mars

How to Live on Mars

A Brief Review of Robert Zubrin’s How To Live On Mars: A Trusty Guidebook to Surviving and Thriving on the Red Planet

It isn’t over-the-top wild and whacky like The Hitchhiker’s Guide to the Galaxy and Douglas Adam’s array of hilarious sequels, but Robert Zubrin’s How to Live on Mars is funny, easy and quick to read, and as well grounded in the science as it is possible for a book written not less than six decades prior to its fictional publication – and well before the exploration and settlement of Mars – can be.

How to Live on Mars: A Trusty Guidebook to Surviving and Thriving on the Red Planet offers assertedly practical tips on “how to get to Mars”; “how to choose a spacesuit”; “how to choose your homestead”; “how to save money on radiation protection”; “how to stay alive in the desert”; “how to profit from the Terraforming Program”; and much else besides, interlaced with wry aspersions cast at NASA, the Mars Authority, Earth and Earthlings, and interspersed with political and social commentary from the acquisitive, anti-authority interplanetary pioneer narrator/author.

One short excerpt should suffice to give you some of the flavor of the book, “Surviving Without Oxygen”:

“We now come to what many new arrivals regard as the most fearsome scenario of all. What happens if you are caught stranded out on the planitia without oxygen? No doubt Earthlings view this predicament as particularly terrifying because it never happens on their home planet. However, while such feelings may be understandable, they are basically irrational, since oxygen is actually quite plentiful on Mars. You just need to know where to find it.

“The most obvious place to get oxygen on Mars is from the atmosphere, which is 95 percent carbon dioxide. To get the oxygen out of the CO2, all you need to do is react some hydrogen with it over a copper-on-alumina catalyst in a reverse-water-gas-shift (RWGS) reactor. This will yield water and carbon monoxide. The aqua you electrolyze to make your oxygen, as well as hydrogen, which you recycle back into your RWGS reactor to continue the process; while you just toss the CO back into the air as waste. (You can do that on Mars – we have no Environmental Prosecution Agency here.) Alternatively, if you find water, you can just electrolyze it to produce your oxygen directly.

“These techniques are obvious and quite simple, but they do involve a problem in that, to produce the 1kg/day of oxygen you need to live, the electrolyzer used by either the above approaches will require an average round-the-clock power level of 180 watts. Unless you have a radioisotope generator with you, this in turn means that you would need a solar array capable of producing about 500 watts during prime daylight.

“Well, if you are really scared of oxygen deprivation, you can go buy yourself a 10-square-meter photovoltaic panel set and make your own breathing gas that way – which after all, is the same method by which it is done in the life-support system of your hab; or on an industrial scale at the central oxygen-generation plant at New Plymouth. But why waste good money on such a fancy (and heavy) approach when there is a much cheaper way to make do when you are out in the field? Really folks, safety is fine as far as it goes, but what’s the point of keeping yourself alive if you have to spend so much to do so that you have nothing left over to use to have a good time?

“So forget about making emergency oxygen by the book from the air or permafrost. There’s an easier way that works just fine, and that is to use the regolith itself. Virgin Martian dirt is loaded with peroxides, and these can be made to break down and emit oxygen just by wetting them with water. This surprising fact was discovered by NASA’s Viking lander probe way back in 1976. Viking was sent to Mars to look for life. One of its experiments involved wetting Mars dirt with water, to see what might grow. But the scientists got quite a shock when, instead of promoting a slow growth of native plants, the soil itself responded to its irrigation by immediately releasing a flood of oxygen gas into the test chamber.

“Well, 1976 may be ancient history, but the trick still works. If you wet unprocessed Martian soil, you will get oxygen. So, instead of a RWGS unit with a 10-square-meter solar array, what you need is a large plastic bag, a shovel, and a small roughing pump. To get oxygen, just shovel some dirt into your bag, and then wet it, using water obtained by the methods I explained to you earlier [“Marooned Without Water”]. In fact, highly saline water obtained simply by melting permafrost is also fine for this purpose. When the oxygen starts fizzling out, just turn on the pump to bring the gas up to your suit pressure, and inject directly into your helmet’s auxiliary feed line. The stuff tends to smell a bit like fired gunpowder, but it’s quite breathable. If the smell does bother you, you can deal with it by inserting a small activated-carbon filter into the gas feed line. When the fizzling stops, just dump the bag, reload with soil, wet with water, and continue. There’s nothing to it.”

How to Live on Mars will never be an immortal classic — not even in the “science fiction” genre — but it is both interesting and fun. If you’re at all inclined to the general subject matter, I think you’ll enjoy it immensely.

For a wealth of additional information on this topic, see The Mars Society website, hub for the organization (Robert Zubrin is its president) which seeks “to further the goal of the exploration and settlement of the Red Planet . . . by broad public outreach to instill the vision of pioneering Mars . . . support of ever more aggressive government funded Mars exploration programs around the world . . . [and] conducting Mars exploration on a private basis.” You’ll find the Mars Society’s Founding Declaration here, and also in the final chapter of How to Live on Mars. For an abbreviated Case for Colonizing Mars by Zubrin, see the article previously printed in Ad Astra July/August 1996. For a more extensive brief, see Zubrin’s book The Case for Mars.

Published in: on May 27, 2009 at 5:41 pm Leave a Comment

New Library Deliveries Proceed Apace

While the bulk of the shelving has not yet arrived (it should be here late this week) much of the furniture and other items continue to be delivered, assembled and installed. A few new snapshots of the evolving interior:

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Published in: on May 26, 2009 at 5:36 pm Leave a Comment

On Books #7

Doomsday Book

“. . . William the Conqueror’s Doomsday Book, written on vellum in 1086 AD, has survived 900 years. However, the medium used for a digital version of the book, encoded in 1986, failed within 20 years.”

Science Daily
“New Memory Material May Hold Data for One Billion Years”
May 26, 2009

Published in: on May 24, 2009 at 1:26 pm Leave a Comment