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Nina Nadine Ridder

Why Explore Mars? : Discovery News - 5 views

news.discovery.com/...why-explore-mars.html

Mars NASA rover

shared by Nina Nadine Ridder on 04 May 10 - Cached
  • Nina Nadine Ridder on 04 May 10
     
    "NASA's proposed budget for 2011 is $19 billion," Brown says. "That's about three weeks of the war in Iraq." + interesting video on new rover design ("tumbleweed" rover)
  • Christos Ampatzis on 05 May 10
     
    that's why I quit ESA - I'll join NATO, more promising career ahead
  • LeopoldS on 05 May 10
     
    I thought you became an EC bureaucrat ...
Luís F. Simões

The Fallout of a Helium-3 Crisis : Discovery News - 3 views

news.discovery.com/...fall-of-a-helium-3-crisis.html

helium crisis moon mining

shared by Luís F. Simões on 22 Feb 11 - No Cached
  • So short in fact, that last year when the looming crisis, which reporters had been covering for years, became official, the price of helium-3 went from $150 per liter to $5,000 per liter.
  • The science, medical and security uses for helium-3 are so diverse that the crisis banded together a hodge-podge of universities, hospitals and government departments to try and find workable alternatives and engineer ways to recycle the gas they do have.
  • Luís F. Simões on 22 Feb 11
     
    So, which shall it be? Are we going to increase the production of hydrogen bombs, or can we finally go back to the Moon (http://en.wikipedia.org/wiki/Helium-3#Extraterrestrial_supplies) ?
  • dejanpetkow on 23 Feb 11
     
    None of these. Either you recycle, or you take it from natural sources on Earth. Although most people don't know - there is plenty of natural He3 on Earth. It's just nonsens to use it for energy production (in fusion reactors) since the energy belance for getting the He3 from these source on Earth is just negative. Or you try to substitute He3.
Luís F. Simões

Shell energy scenarios to 2050 - 6 views

www.shell.com/...shell_energy_scenarios_2050

energy future forecast politics economy climate_change

shared by Luís F. Simões on 09 Mar 11 - No Cached
  • Luís F. Simões on 09 Mar 11
     
    just in case you were feeling happy and optimistic
  • ...7 more comments...
  • Francesco Biscani on 09 Mar 11
     
    An energy scenario published by an oil company? Allow me to be sceptical...
  • Joris _ on 10 Mar 11
     
    Indeed, Shell is an energy company, not just oil, for some time now ... The two scenarii are, in their approach, dependant of economic and political situation, which is right now impossible to forecast. Reference to Kyoto is surprising, almost out-dated! But overall, I find it rather optimistic at some stages, and probably the timeline (p37-39) is unlikely with recent events.
  • Luís F. Simões on 10 Mar 11
     
    the report was published in 2008, which explains the reference to Kyoto, as the follow-up to it was much more uncertain at that point. The Blueprint scenario is indeed optimistic, but also quite unlikely I'd say. I don't see humanity suddenly becoming so wise and coordinated. Sadly, I see something closer to the Scramble scenario as much more likely to occur.
  • LeopoldS on 12 Mar 11
     
    not an oil company??? please have a look at the percentage of their revenues coming from oil and gas and then compare this with all their other energy activities together and you will see very quickly that it is only window dressing ... they are an oil and gas company ... and nothing more
  • Joris _ on 14 Mar 11
     
    not JUST oil. From a description: "Shell is a global group of energy and petrochemical companies." Of course revenues coming from oil are the biggest, the investment turnover on other energy sources is small for now. Knowing that most of their revenues is from an expendable source, to guarantee their future, they invest elsewhere. They have invested >1b$ in renewable energy, including biofuels. They had the largest wind power business among so-called "oil" companies. Oil only defines what they do "best". As a comparison, some time ago, Apple were selling only computers and now they sell phones. But I would not say Apple is just a phone company.
  • LeopoldS on 14 Mar 11
     
    window dressing only ... e.g. Net cash from operating activities (pre-tax) in 2008: 70 Billion$ net income in 2008: 26 Billion revenues in 2008: 88 Billion Their investments and revenues in renewables don't even show up in their annual financial reports since probably they are under the heading of "marketing" which is already 1.7 Billion $ ... this is what they report on their investments: Capital investment, portfolio actions and business development Capital investment in 2009 was $24 billion. This represents a 26% decrease from 2008, which included over $8 billion in acquisitions, primarily relating to Duvernay Oil Corp. Capital investment included exploration expenditure of $4.5 billion (2008: $11.0 billion). In Abu Dhabi, Shell signed an agreement with Abu Dhabi National Oil Company to extend the GASCO joint venture for a further 20 years. In Australia, Shell and its partners took the final investment decision (FID) for the Gorgon LNG project (Shell share 25%). Gorgon will supply global gas markets to at least 2050, with a capacity of 15 million tonnes (100% basis) of LNG per year and a major carbon capture and storage scheme. Shell has announced a front-end engineering and design study for a floating LNG (FLNG) project, with the potential to deploy these facilities at the Prelude offshore gas discovery in Australia (Shell share 100%). In Australia, Shell confirmed that it has accepted Woodside Petroleum Ltd.'s entitlement offer of new shares at a total cost of $0.8 billion, maintaining its 34.27% share in the company; $0.4 billion was paid in 2009 with the remainder paid in 2010. In Bolivia and Brazil, Shell sold its share in a gas pipeline and in a thermoelectric power plant and its related assets for a total of around $100 million. In Canada, the Government of Alberta and the national government jointly announced their intent to contribute $0.8 billion of funding towards the Quest carbon capture and sequestration project. Quest, which is at the f
  • Joris _ on 14 Mar 11
     
    thanks for the info :) They still have their 50% share in the wind farm in Noordzee (you can see it from ESTEC on a clear day). Look for Shell International Renewables, other subsidiaries and joint-ventures. I guess, the report is about the oil branch. http://sustainabilityreport.shell.com/2009/servicepages/downloads/files/all_shell_sr09.pdf http://www.noordzeewind.nl/
  • LeopoldS on 16 Mar 11
     
    no - its about Shell globally - all Shell .. these participations are just peanuts please read the intro of the CEO in the pdf you linked to: he does not even mention renewables! their entire sustainability strategy is about oil and gas - just making it (look) nicer and environmentally friendlier
  • Joris _ on 16 Mar 11
     
    Fair enough, for me even peanuts are worthy and I am not able to judge. Not all big-profit companies, like Shell, are evil :( Look in the pdf what is in the upstream and downstream you mentionned above. Non-shell sources for examples and more objectivity: http://www.nuon.com/company/Innovative-projects/noordzeewind.jsp http://www.e-energymarket.com/news/single-news/article/ferrari-tops-bahrain-gp-using-shell-biofuel.html thanks.
Luís F. Simões

Wind Power Without the Blades: Big Pics : Discovery News - 4 views

news.discovery.com/...-power-without-the-blades.html

NRG wind energy biomimicry

shared by Luís F. Simões on 19 Sep 11 - No Cached
  • The carbon-fiber stalks, reinforced with resin, are about a foot wide at the base tapering to about 2 inches at the top. Each stalk will contain alternating layers of electrodes and ceramic discs made from piezoelectric material, which generates a current when put under pressure. In the case of the stalks, the discs will compress as they sway in the wind, creating a charge.
  • Based on rough estimates, said Núñez-Ameni the output would be comparable to that of a conventional wind farm covering the same area
  • After completion, a Windstalk should be able to produce as much electricity as a single wind turbine, with the advantage that output could be increased with a denser array of stalks. Density is not possible with conventional turbines, which need to be spaced about three times the rotor's diameter in order to avoid air turbulence. But Windstalks work on chaos and turbulence so they can be installed much closer together, said Núñez-Ameni.
  • ...1 more annotation...
  • Núñez-Ameni also reports that the firm is currently working on taking the Windstalk idea underwater. Called Wavestalk, the whole system would be inverted to harness energy from the flow of ocean currents and waves.
  • Luís F. Simões on 19 Sep 11
     
    additional information: http://atelierdna.com/?p=144
  • LeopoldS on 24 Sep 11
     
    isn't this a bit of a contradiction: on the one hand: "Based on rough estimates, said Núñez-Ameni the output would be comparable to that of a conventional wind farm covering the same area" and on the other: "After completion, a Windstalk should be able to produce as much electricity as a single wind turbine, with the advantage that output could be increased with a denser array of stalks. Density is not possible with conventional turbines, which need to be spaced about three times the rotor's diameter in order to avoid air turbulence. " still, very interesting concept!
nikolas smyrlakis

Coldest, Driest, Calmest Place on Earth Found - Yahoo! News - 0 views

news.yahoo.com/...driestcalmestplaceonearthfound

observatory antarctic

shared by nikolas smyrlakis on 01 Sep 09 - Cached
  • nikolas smyrlakis on 01 Sep 09
     
    The search for the best observatory site in the world has lead to the discovery of what is thought to be the coldest, driest, calmest place on Earth - a place where no human is thought to have ever set foot.
Ma Ru

[FUN] Fake Dutch 'moon rock' revealed - 0 views

news.bbc.co.uk/...8226075.stm

fun moon rock museum

shared by Ma Ru on 28 Aug 09 - Cached
LeopoldS liked it
  • Ma Ru on 28 Aug 09
     
    Read before you go to Rijksmuseum;) My fav quote though: "US officials said they had no explanation for the Dutch discovery." I could find one or two...
  • LeopoldS on 29 Aug 09
     
    nice story indeed :-)
ESA ACT

Materials Today : The top ten advances in materials science - 0 views

www.sciencedirect.com/science

NAN technology materials

shared by ESA ACT on 24 Apr 09 - Cached
  • ESA ACT on 24 Apr 09
     
    What are the defining discoveries, moments of inspiration, or shifts in understanding that have shaped the dynamic field of materials science we know today. Here's what we think are the most significant.
ESA ACT

Leiden weather stats from 1976!!!! - 0 views

www.meteoleiden.nl/index.php

climate

shared by ESA ACT on 24 Apr 09 - Cached
  • ESA ACT on 24 Apr 09
     
    Tobias discovery
Ma Ru

Eurekometrics: Analyzing the Nature of Discovery - 1 views

www.ploscompbiol.org/...10.1371%2Fjournal.pcbi.1002072

science discovery

shared by Ma Ru on 05 Jul 11 - No Cached
  • Ma Ru on 05 Jul 11
     
    Sounds quite ACT-ish...
Thijs Versloot

Reality - Almost No Patented Discoveries Ever Get Used @WIRED - 3 views

www.wired.com/...fixing-broken-patent-system

shared by Thijs Versloot on 12 Jan 15 - No Cached
  • Thijs Versloot on 12 Jan 15
     
    The unspoken reality is that the U.S. patent system creates a market so constricted by high transaction costs and legal risks that it excludes the vast majority of small and mid-sized businesses and prevents literally 95 percent of all patented discoveries from ever being put to use to create new products and services, new jobs, and new economic growth.
Thijs Versloot

Artificially-intelligent Robot Scientist 'Eve' could boost search for new drugs - 4 views

www.cam.ac.uk/...uld-boost-search-for-new-drugs

technology AI medicine

shared by Thijs Versloot on 04 Feb 15 - No Cached
Paul N liked it
  • Thijs Versloot on 04 Feb 15
     
    Eve, an artificially-intelligent 'robot scientist' could make drug discovery faster and much cheaper, say researchers writing in the Royal Society journal Interface. The team has demonstrated the success of the approach as Eve discovered that a compound shown to have anti-cancer properties might also be used in the fight against malaria.
  • Ma Ru on 14 Feb 15
     
    Unfortunately, "make drug discovery faster and much cheaper" actually means "increase profit margin for pharmaceutical companies"...
Marcus Maertens

Unsupervised word embeddings capture latent knowledge from materials science literature... - 1 views

www.nature.com/...s41586-019-1335-8

AI

shared by Marcus Maertens on 05 Jul 19 - No Cached
  • Marcus Maertens on 05 Jul 19
     
    New results in NLP might allow to automate scientific discoveries by data mining of papers. Work considers 3.3M abstracts from material science, physics and chemistry and claims to discover new materials before they are published later on.
  • Athanasia Nikolaou on 05 Jul 19
     
    ACT did that from diigo post digging in the retreat of 2014! Still without NLP.
  • Marcus Maertens on 05 Jul 19
     
    That's cool! Didn't know.
Luís F. Simões

Physicists Discover a Whopping 13 New Solutions to Three-Body Problem - ScienceNOW - 1 views

news.sciencemag.org/...cists-discover-a-whopping.html

MAD

shared by Luís F. Simões on 10 Mar 13 - No Cached
  • The discovery of 13 new families, made by physicists Milovan Šuvakov and Veljko Dmitrašinović at the University of Belgrade, brings the new total to 16.
  • All the solutions can be viewed online
  • Dario Izzo on 10 Mar 13
     
    They search numerically for initial conditions resulting in periodic orbits. Reminds to me the methods we employed for the "search for invariant relative motion" and which brought us to discover the magic inclinations (47.9 degrees). I wonder what are the implications. In any case nice plots :)
  • Francesco Biscani on 11 Mar 13
     
    Haven't read in detail, but it's not clear to me what it means exactly. If they were discovered numerically (I assume it means via numerical integration), how can they be sure the orbits are truly periodic?
Joris _

Prezi - Ideas matter. - 2 views

prezi.com

INF

shared by Joris _ on 27 Mar 13 - Cached
  • Joris _ on 27 Mar 13
     
    Prezi is a cloud-based presentation software that opens up a new world between whiteboards and slides. The zoomable canvas makes it fun to explore ideas and the connections between them. The result: visually captivating presentations that lead your audience down a path of discovery.
Thijs Versloot

Particles defy gravity and float upstream - 3 views

www.sciencenews.org/...es_defy_gravity_float_upstream

science

shared by Thijs Versloot on 03 Jul 13 - No Cached
  • Thijs Versloot on 03 Jul 13
     
    Rogue tea leaves have led physicists to the discovery of a counter-intuitive phenomenon: Particles can float upstream in moving water.
jcunha

Accelerated search for materials with targeted properties by adaptive design - 0 views

www.nature.com/...ncomms11241.html

technology machine learning PHY materials

shared by jcunha on 10 May 16 - No Cached
  • jcunha on 10 May 16
     
    There has been much recent interest in accelerating materials discovery. High-throughput calculations and combinatorial experiments have been the approaches of choice to narrow the search space. The emphasis has largely been on feature or descriptor selection or the use of regression tools, such as least squares, to predict properties. The regression studies have been hampered by small data sets, large model or prediction uncertainties and extrapolation to a vast unexplored chemical space with little or no experimental feedback to validate the predictions. Thus, they are prone to be suboptimal. Here an adaptive design approach is used that provides a robust, guided basis for the selection of the next material for experimental measurements by using uncertainties and maximizing the 'expected improvement' from the best-so-far material in an iterative loop with feedback from experiments. It balances the goal of searching materials likely to have the best property (exploitation) with the need to explore parts of the search space with fewer sampling points and greater uncertainty.
  • jcunha on 11 May 16
Luís F. Simões

Our approach to replication in computational science - 2 views

ivory.idyll.org/...replication-i

science research publications open science

shared by Luís F. Simões on 13 Apr 12 - No Cached
  • So what did we do to make this paper extra super replicable? If you go to the paper Web site, you'll find:
  • p.s. I think I have to refer to this cancer results not reproducible paper somewhere. Done.
  • Luís F. Simões on 13 Apr 12
     
    good discussion on the replicability/reproducibility of scientific results (also a nice example of how to do it right... in bioinformatics at least)
Ma Ru

Some movement toward academic spring here in UK - 2 views

www.guardian.co.uk/...ia-research-jimmy-wales-online

science UK open access peer review funding Wikipedia

shared by Ma Ru on 03 May 12 - No Cached
  • Ma Ru on 03 May 12
     
    "Giving people the right to roam freely over publicly funded research will usher in a new era of academic discovery and collaboration, and will put the UK at the very forefront of open research".
Nicholas Lan

Ancient language discovered on clay tablets found amid ruins of 2800 year old Middle Ea... - 1 views

www.independent.co.uk/...le-eastern-palace-7728894.html

archaeology fun

shared by Nicholas Lan on 10 May 12 - No Cached
LeopoldS liked it
  • Nicholas Lan on 10 May 12
     
    archaeology for a bit of a change of pace. "The discovery is important because it may help reveal the ethnic and cultural origins of some of history's first 'barbarians' - mountain tribes which had, in previous millennia, preyed on the world's first great civilizations, the cultures of early Mesopotamia in what is now Iraq."
pandomilla

Uncoiling the cucumber's enigma - 1 views

www.eurekalert.org/...hu-utc083012.php

shared by pandomilla on 31 Aug 12 - No Cached
  • pandomilla on 31 Aug 12
     
    Captivated by a strange coiling behavior in the grasping tendrils of the cucumber plant, researchers at Harvard University have characterized a new type of spring that is soft when pulled gently and stiff when pulled strongly. Instead of unwinding to a flat ribbon under stress, as an untwisted coil normally would, the cucumber's tendrils actually coil further.
  • pandomilla on 31 Aug 12
     
    ...interesting discovery that can add something to my ongoing Ariadna...
  • pandomilla on 31 Aug 12
     
    And here you have the paper published today on Science http://www.sciencemag.org/content/337/6098/1087.full
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