Science

Posted on Sep.13, 2019 in Science, space exploration by

Garwin on Serendipity and Solar Sailing

In July, the Planetary Society’s Lightsail 2 spacecraft demonstrated the viability of “solar sailing,” becoming “the first spacecraft in Earth orbit propelled solely by sunlight.”

But the practicality of solar sailing was first described six decades earlier by physicist Richard L. Garwin.

“It is difficult to exaggerate the importance of solar radiation pressure for the propulsion of satellites or space ships within the solar system,” he wrote in the Journal of the American Rocket Society in March 1958, when he was 30 years old. “Although the acceleration is numerically small, the velocity changes in reasonable times by significant amounts.”

This week, Garwin reflected on this and other episodes in his lifetime of problem solving and technical innovation. He spoke to post-doctoral researchers from the Harvard Physics Department. See Serendipities from Long Ago by Richard L. Garwin, keynote address, September 11, 2019.

How did he come up with solar sailing?

“As physicists do, I had been thinking about how things worked or could work and learned about radiation pressure, as did everybody in high school,” he said.

Not everyone grasped the concept immediately, Garwin noted.

“I recall that when the Chief Scientist of the U.S. Air Force was asked about this proposal at a press conference, he explained that even if it would work, it could only be used for going outward beyond Earth orbit around the Sun and not for going inward, because radiation pressure was radially outward from the Sun.”

“What he missed, of course, was that the fact that the sail was in Earth orbit or, for that matter solar orbit, meant that a reflective sail could be angled so as to provide a force perpendicular to the sail, that would have a component either along the velocity vector or in the opposite direction, so that the orbital velocity component could be increased or reduced; thus, the SS could either gain or lose energy and so spiral in or out from the Sun, or in Earth orbit.”

Posted on Sep.03, 2019 in Science, technology, Trump Administration by

White House Issues a “National” Science & Tech Agenda

A new White House budget memo presents science and technology as a distinctly American-led enterprise in which U.S. dominance is to be maintained and reinforced. The document is silent on the possibility or the necessity of international scientific cooperation.

“The five R&D budgetary priorities in this memorandum ensure that America remains at the forefront of scientific progress, national and economic security, and personal wellbeing, while continuing to serve as the standard-bearer for today’s emerging technologies and Industries of the Future,” wrote Acting OMB Director Russell T. Vought and White House science advisor Dr. Kelvin K. Droegemeier in the August 30 memo.

The document, which is intended to inform executive branch budget planning for fiscal year 2021, contains no acknowledgment that many scientific challenges are global in scope, that foreign countries lead the U.S. in some areas of science and technology, or that the U.S. could actually benefit from international collaboration.

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The White House memo begins by designating the entire post-World War II period until now as America’s “First Bold Era in S&T [Science & Technology].” It goes on to proclaim that the “Second Bold Era in S&T” has now begun under President Trump.

“The Trump Administration continues to prioritize the technologies that power Industries of the Future (IotF),” the memo declares.

Many of the proposed technology priorities are already in progress — including artificial intelligence, robotics, and gene therapy. Some are controversial or disputed — such as the purported need to invest in protection against electromagnetic pulse attacks.

Meanwhile, the memo takes pains to avoid even mentioning the term “climate change,” which is disfavored by this White House. Instead, it speaks of “Earth system predictability” and “knowing the extent to which components of the Earth system are practically predictable.”

Today’s Second Bold Era is “characterized by unprecedented knowledge, access to data and computing resources, ubiquitous and instant communication,” and so on. “Unfortunately, this Second Bold Era also features new and extraordinary threats which must be confronted thoughtfully and effectively.”

The White House guidance suggests vaguely that the Second Bold Era could require a recalibration of secrecy policy in science and technology. “[Success] will depend upon striking a balance between the openness of our research ecosystem and the protection of our ideas and research outcomes.”

This may or may not augur a change in the longstanding policy of openness in basic research that was formally adopted in President Reagan’s 1985 National Security Decision Directive 189. That directive stated that “It is the policy of this Administration that, to the maximum extent possible, the products of fundamental research remain unrestricted.”

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The context for the concern about protecting U.S. ideas and research outcomes is an assessment that U.S. intellectual property is being aggressively targeted and illicitly acquired by China, among other countries.

“China has expansive efforts in place to acquire U.S. technology to include sensitive trade secrets and proprietary information,” according to a 2018 report from the National Counterintelligence and Security Center. “Chinese companies and individuals often acquire U.S. technology for commercial and scientific purposes.”

Perceived Chinese theft of U.S. intellectual property is one of the factors that led to imposition of U.S. tariffs on Chinese imports. See U.S.-China Relations, Congressional Research Service, August 29, 2019.

*    *    *

At an August 30 briefing on artificial intelligence in the Department of Defense, Air Force Lt. General Jack Shanahan discussed the need to protect military data in the context of AI.

But unlike the new White House memo, Gen. Shanahan recognized the need for international cooperation even (or especially) in national security matters:

“We’re very interested in actively engaging a number of international partners,” he said, “because if you envision a future of which the United States is employing A.I. in its military capabilities and other nations are not, what does that future look like? Does the commander trust one and not the other?”

By analogy, however, the same need for international collaboration arises in many other areas of science and technology which cannot be effectively addressed solely on a national basis, from mitigating climate change to combating disease. In such cases, everyone needs to be “at the forefront” together.

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One way to bolster U.S. scientific and intellectual leadership that the White House memo does not contemplate is to encourage foreign students at American universities to remain in this country. Too often, they are discouraged from doing so, wrote Columbia University Lee C. Bollinger in the Washington Post.

“Many of these international scholars, especially in the fields of science, technology, engineering and mathematics, would, if permitted, prefer to remain in the United States and work for U.S.-based companies after graduation, where they could also contribute to the United States’ economic growth and prosperity. But under the present rules, when their academic studies are completed, we make it difficult for them to stay. They return to their countries with the extraordinary knowledge they acquired here, which can inform future commercial strategies deployed against U.S. competitors,” Bollinger wrote on August 30.

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As for the Trump Administration’s pending FY2020 budget request for research and development, it does not convey much in the way of boldness (or Boldness).

“Under the President’s FY2020 budget request, most federal agencies would see their R&D funding decline. The primary exception is the Department of Defense,” according to the Congressional Research Service.

“The President’s FY2020 budget request would reduce funding for basic research by $1.5 billion (4.0%), applied research by $4.3 billion (10.5%), and facilities and equipment by $0.5 billion (12.8%), while increasing funding for development by $4.5 billion (8.3%).” See Federal Research and Development (R&D) Funding: FY2020, updated August 13, 2019.

Posted on May.08, 2019 in Dept of Defense, Science by

Congress Members Speak Up for JASONs

The Department of Defense decision not to renew the underlying contract for the independent JASON scientific advisory panel drew criticism from a bipartisan, bicameral group of congressmen and senators.

“We believe that cancelling the JASON contract could damage our national security by depriving not only the Pentagon, but also other national security agencies, of sober and sound advice in confronting some of the Nation’s most complex threats,” the members wrote on May 3.

They noted that the National Nuclear Security Administration had recently intervened to sustain the JASONs for the coming year.

“However,” they wrote, “given the national security interests involved in cancellation of the JASON contract, a permanent solution must be found. We encourage you to work with NNSA and the other agencies that utilize JASON to find an appropriate long-term home for JASON, whether it be Research and Engineering, another office, such as Acquisition and Sustainment, or NNSA.”

If the JASONs’ current sponsor at Defense Research and Engineering is indifferent to or uninterested in the work of JASON, it would be pointless to compel continued sponsorship of the group there. But other agencies such as NNSA have an interest in preserving JASON, as does Congress itself.

“Members of Congress have long counted on their nonpartisan, independent, science-based advice to inform our decisions on a range of national security issues facing our nation, such as nuclear weapons, space, and emerging technologies,” the members wrote. They posed a series of questions about the Pentagon’s handling of the JASON contract and they asked the Acting Secretary of Defense to cooperate in resolving the issue.

Last week a Freedom of Information Act request for a copy of a 2016 JASON report entitled “Counterspace” was denied on appeal by the Defense Advanced Research Projects Agency. The unclassified JASON report is exempt from FOIA as deliberative material and because it contains arms export control information, DARPA said.

Posted on Apr.10, 2019 in Dept of Defense, Science by

Pentagon Cancels Contract for JASON Advisory Panel

Updated below

In a startling blow to the system of independent science and technology advice, the Department of Defense decided not to renew its support for the JASON defense science advisory panel, it was disclosed yesterday.

“Were you aware that [the JASON contract] has been summarily terminated by the Pentagon?”

That was one of the first questions asked by Rep. Jim Cooper, chair of the House Armed Services Committee Strategic Forces Subcommittee, at a hearing yesterday (at about 40’20”).

NNSA Administrator Lisa Gordon-Hagerty replied that she was aware that the Pentagon had taken some action, and said that she had asked her staff to find out more. She noted that NNSA has an interest in maintaining the viability of the JASON panel, particularly since “We do have some ongoing studies with JASON.”

In fact, JASON performs technical studies for many agencies inside and outside of the national security bureaucracy and it is highly regarded for the quality of its work.

So why is the Pentagon threatening its future?

Even to insiders, the DoD’s thought process is obscure and uncertain.

“To understand it you first have to understand the existing contract structure,” one official said. “This is a bit arcane, but MITRE currently has an Indefinite Delivery / Indefinite Quantity (IDIQ) contract with the Office of the Secretary of Defense (OSD), the purpose of which is to manage and operate the JASON effort. However, you don’t actually do anything with an IDIQ contract; rather, the purpose of the IDIQ contract [is to] have Task Orders (TO’s) placed on it. These TO’s are essentially mini-contracts in and of themselves, and all the actual work is performed according to the TO’s. This structure allows any government agency to commission a JASON study; conceptually, all you need to do is just open another TO for that study. (The reality is slightly more complicated, but that’s the basic idea).”

“The underlying IDIQ contract has a 5-year period of performance, which just expired on March 31. Last November, OSD started the process of letting a new 5-year IDIQ contract with essentially the same structure so that the cycle could continue. They decided to compete the contract, solicited bids, and were going to announce the contract award in mid-March. Instead, what happened is that about two weeks ago (March 28, two days before the expiration of the existing IDIQ contract) they announced that they were canceling the solicitation and would not be awarding another contract at all. Instead, they offered to award a single contract for a single study without the IDIQ structure that allows other agencies to commission studies.”

But “I do not know the reason” for the cancellation, the official said.

And so far, those who do know are not talking. The Office of the Under Secretary of Defense (Research and Engineering) “would not answer any questions or discuss the matter in any way whatsoever.”

The news was first reported in “Storied Jason science advisory group loses contract with Pentagon” by Jeffrey Mervis and Ann Finkbeiner in Science magazine, and was first noticed by Stephen Young.

The JASON panel has performed studies (many of which are classified) for federal agencies including the National Nuclear Security Administration, the Central Intelligence Agency and the National Reconnaissance Office, as well as the Census Bureau and the Department of Health and Human Services.

Lately, the Department of Agriculture denied a Freedom of Information Act request for a copy of a 2016 JASON report that it had sponsored entitled “New Techniques for Evaluating Crop Production.” The unclassified report is exempt from disclosure under the deliberative process privilege, USDA lawyers said. That denial is under appeal.

The Pentagon move to cancel the JASON contract appears to be part of a larger trend by federal agencies to limit independent scientific and technical advice. As noted by Rep. Cooper at yesterday’s hearing, the Navy also lately terminated its longstanding Naval Research Advisory Committee.

Update, 4/25/19: National Public Radio and Defense News reported that the National Nuclear Security Administration has posted a solicitation to take over the JASON contract from the Department of Defense.

Posted on Apr.05, 2019 in Naval Power, Science, technology by

Navy Torpedoes Scientific Advisory Group

This week the U.S. Navy abruptly terminated its own scientific advisory group, depriving the service of a source of internal critique and evaluation.

The Naval Research Advisory Committee (NRAC) was established by legislation in 1946 and provided science and technology advice to the Navy for the past 73 years. Now it’s gone.

The decision to disestablish the Committee was announced in a March 29 Federal Register notice, which did not provide any justification for eliminating it. Phone and email messages to the office of the Secretary of the Navy seeking more information were not returned.

“I think it’s a shortsighted move,” said one Navy official, who was not part of the decisionmaking process.

This official said that the Committee had been made vulnerable by an earlier effort to reduce the number of Navy advisory committees. Instead of remaining an independent entity, the NRAC was redesignated as a sub-committee of the Secretary of the Navy Advisory Panel, which provides policy advice to the Secretary. It was a poor fit for the NRAC technologists, the official said, since they don’t do policy and were thus “misaligned.” When the Secretary decided to eliminate the Panel, the NRAC was swept away with it.

Did the NRAC do or say something in particular to trigger the Navy’s wrath? If so, it’s unclear what that might have been. “This is the most highly professional crew I’ve seen,” the Navy official said. “They stay between the lines.”

The NRAC was the Navy counterpart to the Army Science Board and the Air Force Scientific Advisory Board. It has no obvious replacement.

“This will leave the Navy without an independent and objective technical advisory body, which is not in the best interests of the Navy or the nation,” said a Navy scientist.

According to the NRAC website (which is still online for now), “The Naval Research Advisory Committee (NRAC) is an independent civilian scientific advisory group dedicated to providing objective analyses in the areas of science, research and development. By its recommendations, the NRAC calls attention to important issues and presents Navy management with alternative courses of action.”

Its mission was “To know the problems of the Navy and Marine Corps, keep abreast of the current research and development programs, and provide an independent, objective assessment capability through investigative studies.”

A 2017 report on Autonomous and Unmanned Systems in the Department of the Navy appears to be the NRAC’s most recent unclassified published report.

Under Secretary of the Navy Thomas B. Modly ordered disestablishment of the NRAC in a 21 February 2019 memo.

“This was a sudden and unexpected move according to people I know,” said the Navy scientist.  “I have not yet seen an explanation for its termination.”

Posted on Jan.17, 2019 in Energy, Science by

JASON Endorses Further Fusion Power Research

The JASON scientific advisory panel cautiously endorsed further research into what is known as Magneto-Inertial Fusion (MIF) as a step towards achieving fusion-generated electricity.

“Magneto-Inertial Fusion (MIF) is a physically plausible approach to studying controlled thermonuclear fusion in a region of parameter space that is less explored than Inertial Confinement Fusion (ICF) or Magnetic Confinement Fusion (MCF).”

“Despite having received ~1% the funding of MCF and ICF, MIF experiments have made rapid progress in recent years toward break-even conditions,” the JASONs said in a report to the Advanced Research Projects Agency-Energy (ARPA-E) late last year.

Even so, “Given the immaturity of the technologies, the future ability of fusion-generated electricity to meet commercial constraints cannot be usefully assessed. Rapidly developing infrastructures for natural gas and renewable energy sources and storage will compete with any future commercial fusion efforts.”

See Prospects for Low Cost Fusion Development, JASON Report JSR-18-011, November 2018.

The fusion report is one of two unclassified reports prepared by the JASONs in 2018. (Release of the second is pending.) The other twelve reports from last year are classified.

The New York Times recently provided an overview of fusion research in Clean, Abundant Energy: Fusion Dreams Never End by C. Claiborne Ray, January 11, 2019.

Meanwhile, the Federation of American Scientists warned that the current shutdown of federal agencies threatens many aspects of U.S. science and technology.

“The partial government shutdown is compromising the very research that is important to the health and security of our nation. Important scientific breakthroughs could be compromised or lost with each and every day that the shutdown continues,” FAS said in a January 16 letter to the White House and Congress.

“We therefore urge you to open the federal government, send researchers back to work at their agencies, and allow science to flourish throughout the United States.”

Posted on Dec.14, 2017 in Dept of Defense, Military Doctrine, Science by

Pentagon Reaffirms Policy on Scientific Integrity

“It is DoD policy to support a culture of scientific and engineering integrity,” according to a Department of Defense directive that was reissued last week.

This is in large part a matter of self-interest, since the Department depends upon the availability of competent and credible scientists and engineers.

“Science and engineering play a vital role in the DoD’s mission, providing one of several critical inputs to policy and systems acquisition decision making. The DoD recognizes the importance of scientific and engineering information, and science and engineering as methods for maintaining and enhancing its effectiveness and its credibility with the public.  The DoD is dedicated to preserving the integrity of the scientific and engineering activities it conducts.”

Several practical consequences flow from this policy that are spelled out in the directive, including:

–Permitting publication of fundamental research results

–Making scientific and engineering information available on the Internet

–Making articulate and knowledgeable spokespersons available to the media upon request for interviews on science and engineering

The policy further states that:

–Federal scientists and engineers may speak to the media and to the public about scientific and technical matters based on their official work with appropriate coordination with the scientists’ or engineers’ organizations.

–DoD approval to speak to the media or the public shall not be unreasonably delayed or withheld.

–In no circumstance may DoD personnel ask or direct scientists or engineers to alter or suppress their professional findings, although they may suggest that factual errors be corrected.

The reaffirmation of such principles, which were originally adopted in 2012, does not guarantee their consistent application in practice. But it does provide a point of reference and a foothold for defending scientific integrity in the Department.

See Scientific and Engineering Integrity, DoD Instruction 3200.20, July 26, 2012, Incorporating Change 1, December 5, 2017.

Posted on Jun.27, 2017 in China, FOIA, Science, technology by

US-China Scientific Cooperation “Mutually Beneficial”

The US and China have successfully carried out a wide range of cooperative science and technology projects in recent years, the State Department told Congress last year in a newly released report.

Joint programs between government agencies on topics ranging from pest control to elephant conservation to clean energy evidently worked to the benefit of both countries.

“Science and technology engagement with the United States continues to be highly valued by the Chinese government,” the report said.

At the same time, “Cooperative activities also accelerated scientific progress in the United States and provided significant direct benefit to a range of U.S. technical agencies.”

The 2016 biennial report to Congress, released last week under the Freedom of Information Act, describes programs that were ongoing in 2014-2015.

See Implementation of Agreement between the United States and China on Science and Technology, report to Congress, US Department of State, April 2016.

Posted on Mar.17, 2017 in Congress, CRS, Science, technology by

Science & Technology Issues Facing Congress, & More from CRS

Science and technology policy issues that may soon come before Congress were surveyed in a new report from the Congressional Research Service.

Overarching issues include the impact of recent reductions in federal spending for research and development.

“Concerns about reductions in federal R&D funding have been exacerbated by increases in the R&D investments of other nations (China, in particular); globalization of R&D and manufacturing activities; and trade deficits in advanced technology products, an area in which the United States previously ran trade surpluses. At the same time, some Members of Congress have expressed concerns about the level of federal funding in light of the current federal fiscal condition. In addition, R&D funding decisions may be affected by differing perspectives on the appropriate role of the federal government in advancing science and technology.”

See Science and Technology Issues in the 115th Congress, March 14, 2017.

Other new and updated reports from the Congressional Research Service include the following.

The American Health Care Act, March 14, 2017

Previewing a 2018 Farm Bill, March 15, 2017

EPA Policies Concerning Integrated Planning and Affordability of Water Infrastructure, updated March 14, 2017

National Park Service: FY2017 Appropriations and Ten-Year Trends, updated March 14, 2017

Qatar: Governance, Security, and U.S. Policy, updated March 15, 2017

Northern Ireland: Current Issues and Ongoing Challenges in the Peace Process, updated March 14, 2017

Navy LX(R) Amphibious Ship Program: Background and Issues for Congress, updated March 14, 2017

Posted on Feb.02, 2017 in research, Science, technology by

Under Pressure: Long Duration Undersea Research

“The Office of Naval Research is conducting groundbreaking research into the dangers of working for prolonged periods of time in extreme high and low pressure environments.”

Why? In part, it reflects “the increased operational focus being placed on undersea clandestine operations,” said Rear Adm. Mathias W. Winter in newly published answers to questions for the record from a February 2016 hearing.

“The missions include deep dives to work on the ocean floor, clandestine transits in cold, dark waters, and long durations in the confines of the submarine. The Undersea Medicine Program comprises the science and technology efforts to overcome human shortfalls in operating in this extreme environment,” he told the House Armed Services Committee.

See DoD FY2017 Science and Technology Programs: Defense Innovation to Create the Future Military Force, House Armed Services Committee hearing, February 24, 2016.