Uncommon Descent Serving The Intelligent Design Community
Topic

matter, thus atoms, ions, molecules, phases etc

L& FP41: Dawkins, Krauss and trying to pull a world out of “no-thing”

As Cardinal Pell has been recently cleared, perhaps some may be willing to learn from this telling vid: No, Virginia, you do not get a world from no-thing. END

How can we make low-energy concrete for the Moon or Mars — or, Earth?

The C18 rediscovery/ re-invention of concrete . . . it had apparently been made by the Romans, Greeks and Egyptians [–> earlier, the Nabataeans] (and many natural, volcanic or sedimentary rocks are concrete-like) . . . opened up a world of new building possibilities; especially, when it is reinforced by steel. As, we can see all around us. But, concrete here uses a high energy process based on limestone, so how can we break through such barriers for the Moon or Mars? And, how could this be relevant to our home world, Earth? We could look at bones and teeth. For: >>The minerals found in human teeth and bones that give them their hardness and strength belong to a group Read More ›

Today is 9-11-01 + 18 years, let us remember

We owe a debt of honour to remember. So, in absence of the full 9 -hour CNN feed that seems to no longer be there, first NBC live: Here is a timeline: Let us remember, and let us remember that September 11, 2001 was the 318th anniversary of the lifting of the last, 1683 Ottoman siege of Vienna by Jan Sobieski of Poland and Lithuania, less one day. I add, the Jan Sobieski story: Yes, Osama bin Laden was making a claim to pick up from the previous high water mark of Islamist expansion to the West. And, he did that from a place that relative to Mecca is in the direction of Khorasan, which is of deep eschatological significance Read More ›

Burning a brick in Fluorine — physical/chemical properties in action

In the demonstration below, a bit of acetone has been put on the corner of the brick to get the process started: This demonstrates the remarkable effects of inherent, embedded, intelligible structural, quantitative properties of fluorine and other elements and molecules. With lesser materials, we can see similar, even more spectacular effects: Notice, the table of standard electrode potentials of selected ions: A world that exhibits lawlike, reliable properties that are structural and/or quantitative shows how such properties are integrated into the fabric or architecture of being. END

Logic and First Principles, 11: The logic of Ultimate Mind as Source of Reality

After we headlined and began discussing PS on hearing and consciousness yesterday, H raised a significant issue: H, 15: >> . . . the invocation of a Creator who “beautifully designed what each sound should sound like” and “put the special program that can interpret each frequency pattern of air vibration into each sound, thus giving us the sound experience” is an empty explanation, no more useful than claiming that mind arises from matter without any idea how that could happen. >> To this, I replied: KF, 16: >> The concept that the root of reality is Mind, and that mind is at least as fundamental as matter is not an empty claim or assertion. That intelligent, minded designers exist Read More ›

How do memristors work? [Onward implications for Strong AI.]

Memristors are in effect tunable resistors; where a resistive state can be programmed [and changed, so far a very finite number of times]. This means they can store and process information, especially by carrying out weighted-product summations and vector-based matrix array product summations. Such are very powerful physically instantiated mathematical operations. For example, here is a memristor crossbar matrix: . . . and here is one in use to recognise patterns: They hold promise for AI, high density storage units and more. How they work turns out to be a bit of a challenge, as IEEE Spectrum reported in 2015: >>Over the last decade researchers have produced two commercially promising types of memristors: electrochemical metallization memory (ECM) cells, and valence Read More ›

My conclusion (so far) on the suggested infinite past, beginningless physical world: not plausible, likely not possible, here’s why

One of the more astonishing points of debate that has come out at UD is that at least some defenders of the evolutionary materialistic view are prepared to argue for or assume as default that we have had a beginningless past for the physical world.  This has come up several times in recent years and was again discussed last week. I will share my take-away conclusion so far. But first, why are such willing to put up such a spectacularly untestable, unobservable claim? Because, we first know that non-being has no causal powers so if there were ever utter nothing, such would forever obtain. That a world manifestly is implies that SOMETHING always was. The question is what, given that Read More ›

Fun with the hyperreal numbers (and with the idea of an infinite actual past)

The hyperreals are an extension of the real number line that brings to bear a reciprocal relationship between the very large and the very small. By so introducing extensions to the real number continuum, it forms a base for an infinitesimals approach to the calculus and makes sense of a lot of the tricks used by early pioneers of Calculus from Leibniz and Newton to Euler and beyond. (Though, it is clear in retrospect that they missed a lot of the pathologies that are now part of the far more cautious approaches of today.) And yes, here is a case where Wikipedia does some good (likely, in a context where there are few basement trolls capable of making a mess): Read More ›

What about the elusive dream: metallic hydrogen?

With metal-like superionic water already on the table, why not look at the seemingly evasive metallic hydrogen? A year ago, there was a happy announcement (and an article in Science), but doubts have since been entertained; indeed Science issued a correction to the original paper. Science: >>Producing metallic hydrogen has been a great challenge in condensed matter physics. Metallic hydrogen may be a room-temperature superconductor and metastable when the pressure is released and could have an important impact on energy and rocketry. We have studied solid molecular hydrogen under pressure at low temperatures. At a pressure of 495 gigapascals, hydrogen becomes metallic, with reflectivity as high as 0.91. We fit the reflectance using a Drude free-electron model to determine the Read More ›

Why is it that there is discussion of superionic water as being both solid and liquid?

One of the things that struck me in looking at superionic water is how it is so often spoken of as though it were partly liquid and partly solid. I did a spot of reflection, which I am thinking it may help to headline. Where, some of the ideas being brought up will help us on the onward subject of looking at how memristors work. So, following up on the new form of water post: KF, 4: >>One of the interesting things about the coverage [on superionic water]  is how they phrased the properties of superionic ice in terms of being both a solid and a liquid. This may suggest to the public the notion of a contradictory state, which Read More ›