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Wednesday 28 December 2022
Darwinism's failure as a predictive model XXIII
Tuesday 27 December 2022
Darwinism's failure as a predictive model XXII
Darwinism's predictions
Cornelius G Hunter
Sunday 25 December 2022
"...But the Father only."
Mark13:32 NASB"But of that day and hour no one knows, not even the angels of heaven, nor the Son, but the Father alone."
Our Trinitarian (and Modalist) friends wave away the obvious problem this verse creates for their doctrine by claiming that Jesus was speaking from the Son's then human standpoint.
But is this view in harmony with the context of the verse itself ,lets have a look.The verse begins
"But of that day and hour no one knows.."
Obviously meaning no human knows (BTW was Jesus merely saying that no human at that time knew or that no human has ever known and will ever know.), thus if Jesus was speaking purely in terms of the Son's then human existence surely this part of the verse would have covered that.
Then to illustrate the utter futility of anyone on earth attempting to calculate the 'day or hour' he continues
",not even the angels of heaven.."
(again did Jesus mean that no angel presently knows or that no angel has ever and will ever know?) ,now, having made it clear that heaven itself was in the dark re:the Father's determination in this matter does it make sense for Jesus to belabor Earth's ignorance? Certainly what no angel knows no human would.
Why then not allow the verse to interpret itself
"nor the Son,But the Father alone."
i.e not even this eldest sibling in Jehovah's family of servants has ever known or will ever know.
Acts1,6,7NASB " So when they had come together, they were asking Him, saying, “Lord, is it at this time You are restoring the kingdom to Israel?” 7He said to them, “It is not for you to know times or epochs which the Father has fixed by His own authority;"
Though his apostles were understandably curious about Jehovah's timing re:the Kingdom the resurrected (hence superhuman) Jesus indicated that the Father had chosen to keep the decision to himself.
It does not seem that Jesus felt belittled by his Father's decision so it's odd that there are those who seem determined to take offense in his behalf.
The bottom line then
John14:28 KJV "Ye have heard how I said unto you, I go away, and come again unto you. If ye loved me, ye would rejoice, because I said, I go unto the Father: for my Father is greater than I. "
PS. 0ne more thing,a good question deserving of a straight answer would be ,why does the Holy Spirit not know the day or the hour,better yet why is the Holy Spirit not even mentioned in this verse.I mean the verse (quite literally) mentions everyone else.
Dag Hammarskjöld: a brief history.
Dag Hammarskjöld
Darwinism's failure as a predictive model XXII
Darwinism's Predictions
References
Saturday 24 December 2022
File under"well said," LXXXVIII
But what is liberty without wisdom, and without virtue? It is the greatest of all possible evils; for it is folly, vice, and madness, without tuition or restraint.
Edmund Burke
Darwinism's failure as a predictive model XXI
Darwinism's predictions
Cornelius G Hunter
References
Friday 23 December 2022
The latest on the fossil record's fossil recording.
Fossil Friday: Miocene Aardvarks and the Abrupt Origin of Tubulidentata
Günter Bechly
Miocene to Pleistocene
The Eocene
A Real Conundrum
Little evolution has taken place in the genus over almost 20 million years, this is a hallmark of living fossils … , in all probability, the origin of tubulidentate taxa might date to the beginning of the Cenozoic era (Palaeocene epoch, about 65 Ma), and perhaps earlier (in the Cretaceous epoch of the Mesozoic era, some 70 Ma).
References
Darwinism's failure as a predictive model XX
Darwinism's Predictions
References
Thursday 22 December 2022
2023: Year of the Darwin Skeptic?
The Year in Review: Intelligent Design Grows in Influence and Depth
Influencing Leading Scientists
Theory of Biological Design
Darwinism's failure as a predictive model XVIV
Darwinism's Predictions
Cornelius G Hunter
References
The engineering is real.
Synchronized Swimming in Siphonophores: A Design Worth Imitating
David Coppedge
A Floater to Avoid
But it’s not a jellyfish per se. The bell-shaped jellyfishes with which we are most familiar (phylum Cnidaria, subphylum Scyphozoa) are single individuals. The Portuguese man-o’war is classified in subphylum Hydrozoa, which includes the hydra. Like other siphonophores, it is a colony of individuals with specialized functions. Its distinctive gas-filled, sail-like bladder riding the waves like a Portuguese warship suggested the organism’s name.
Most other siphonophores — long, rope-like organisms with hairy-looking tentacles and gelatinous bulbs arranged in rows — sit and wait underwater until prey animals like fish and plankton drift into their stinging cells. But siphonophores can swim. In fact, they travel large distances every day. If the fishing is bad, they will move to a better spot. A video taken by a remotely operated submersible for the Nautilus Ocean Exploration Trust shows one purple-colored species swimming leisurely at the bottom of the ocean:
Its odd shape defied identification at first by the puzzled scientists wondering what it was. That’s understandable, because siphonophores are barely recognizable as animals. Some species can grow to over a hundred feet long (see photo at Smithsonian Magazine).
Common but Weird and Wonderful
The common siphonophore Nanomia bijuga is very plentiful in Monterey Bay. A video by the Monterey Bay Aquarium Research Institute of this “weird and wonderful” animal shows its two main sections: a nectosome made up of 5 to 20 nectophores (zooids which do the propulsion), and a siphosome, composed of zooids that sting and digest krill:
Like other “physonect” siphonophores, N. bijuga has a third part: a “pneumatophore” at the apex of the nectosome. Filled with carbon monoxide gas, the pneumatophore helps keep the colony in a vertical orientation. So numerous and effective are these little predators, they eat more krill per day than all the whales in the bay combined!
That is remarkable Considering images we have seen of humpback whales gulping big mouthfuls as they lunge with mouth agape into dense swarms of the little shrimp-like crustaceans. Another fascinating fact about N. bijuga is that it participates in the daily migration of plankton (diel vertical migration), descending to 800 meters during the daytime for protection, and up to the surface at night. That’s a lot of swimming for a little foot-long Ironman — a mile a day.
Jet Propulsion
Like jellyfish, squid, and octopuses, siphonophores move by jet propulsion. Each nectophore looks like a bubble with a small orifice. The zooid quickly squeezes the bubble, shooting water out to provide thrust, then fills up again. Arranged in pairs along the nectosome, the nectophores cooperate like rowers in a team. One fact about their teamwork fascinated scientists led by Kevin T. Du Clos and Kelly R. Sutherland at the Oregon Institute of Marine Biology, aided by scientists at other institutions including Caltech.
That fact is that N. bijuga employs both synchronized and asynchronous propulsion: sometimes the nectophores “pull” together, and sometimes they work independently. Why is that, and does it make a functional difference? They published their findings in PNAS: “Distributed propulsion enables fast and efficient swimming modes in physonect siphonophores.”
Siphonophores are colonial cnidarians that, unlike single jetters such as squids, swim using propulsion from multiple jets, produced using subunits called nectophores. Distributing propulsion spatially provides advantages in redundancy and maneuverability, and distributing propulsion over time enables context-adaptive swimming modes. We use experiments and modeling to compare swimming modes. We show that synchronous swimming produces high mean speeds and accelerations. By contrast, asynchronous swimming consumes less energy. Thus, by simple variations to the timing of thrust production, siphonophores achieve similar functionality to that of fishes, the ability to adapt swimming performance to context. A greater understanding of the benefits of multijet propulsion may also improve underwater vehicle design.
So once again, we see nature inspiring design by imitation. These scientists found measurable benefits to the travel habits of a lowly, nondescript whatchamacallit. Its ability to get around and migrate a mile a day attracted them to wonder how, and why, with such simple equipment, this organism achieved similar performance to fish. Expecting a reason, they found one: the siphonophore can adapt its “gait” (so to speak) to the needs of the moment: pulling together to escape a predator, but breaking cadence to save energy. It’s something like we see with marching bands, sometimes moving in strict order and sometimes in a “scatter” formation to get into position with less energy.
Think what the humble common siphonophore’s ingenuity could mean to energy-conscious marine vehicle design:
Providing specific advice for vehicle design is beyond the scope of this study, but experimental pulsed single jet vehicles that operate within the Reynolds number range this study (SI Appendix, Fig. S1) have been tested (e.g., Re = 1,300–2,700 for (33)), and there are general principles from this study that could be useful for vehicle research and design. Analogously to N. bijuga, a single underwater vehicle with multiple propulsors could use different modes to adapt to context. Our model test cases suggest strategies for tuning the behavior of a vehicle depending on the desired performance characteristics. A propulsion pattern mimicking the asynchronous case—in which thrust is low, and asynchronous—is best if power consumption is the primary concern because it minimizes the cost of transport.
If speed is more important, the asynchronous-matched case—in which thrust is high and asynchronous—is likely the best because it decreases the cost of transport with only small losses in speed when compared to the synchronous case. Interestingly, the intuitive approach of producing high thrust synchronously (as represented by the synchronous case) may be the least useful, with its primary advantage being high initial acceleration.
Our results also suggest a general approach to selecting the number of propulsors an underwater vehicle should employ. Swimming speed, efficiency, cost of transport, and synchronous acceleration all improved with increasing colony lengths in our model, but these benefits approached asymptotes for the longest colonies(Fig. 3). For underwater vehicles with few propulsors, adding propulsors may provide large performance benefits, but when the number of propulsors is high, the increase in complexity from adding propulsors may outweigh the incremental performance gains.
The multijet strategy provides flexibility in the spatial and temporal distributions of propulsion. Multijet swimmers, such as N. bijuga, take advantage of this flexibility to increase their maneuverability, redundancy, and context-specific swimming performance.
The authors were impressed enough with the animal’s skill, they used the word “design” four times, but evolution zero times. Good thing; trying to figure out the phylogeny of siphonophores is a challenge (Molecular Biology and Evolution).
The Kicker
The design, for sure, proceeds all the way from the whole colony down to each cell, where molecular machines, a genome, and network of parts enables the whole. A siphonophore is, using Douglas Axe’s term, a “functional whole” with design evident at every level.
It’s quite a show. And like the design plan, the synchronization continues throughout and within every player in the colony — even in the decision to break cadence and go async when that swimming strategy makes the most sense.