UCI researchers have now solved this problem by coating a gold nanowire in a manganese dioxide shell and then encasing the assembly in an electrolyte made of a Plexiglas-like gel. The resultant material is reliable and resistant to failure.
The study leader, UCI doctoral candidate Mya Le Thai, cycled an electrode made from this material up to 200,000 times over three months without detecting any loss of capacity or power and without fracturing any nanowires. The findings are published in a paper in Energy Letters.
100k Cycles and Beyond: Extraordinary Cycle Stability for MnO2 Nanowires Imparted by a Gel Electrolyte
Mya Le Thai† Girija Thesma Chandran† Rajen K. Dutta‡ Xiaowei Li¶ Reginald M. Penner*† View Author InformationCite this: ACS Energy Lett. 2016, 1, 1, 57–63Publication Date:April 20, 2016https://doi.org/10.1021/acsenergylett.6b00029Copyright © 2016 American Chemical SocietyRIGHTS & PERMISSIONS https://pubs.acs.org/doi/10.1021/acsenergylett.6b00029 We demonstrate reversible cycle stability for up to 200 000 cycles with 94–96% average Coulombic efficiency for symmetrical δ-MnO2 nanowire capacitors operating across a 1.2 V voltage window in a poly(methyl methacrylate) (PMMA) gel electrolyte. The nanowires investigated here have a Au@δ-MnO2 core@shell architecture in which a central gold nanowire current collector is surrounded by an electrodeposited layer of δ-MnO2 that has a thickness of between 143 and 300 nm. Identical capacitors operating in the absence of PMMA (propylene carbonate (PC), 1.0 M LiClO4) show dramatically reduced cycle stabilities ranging from 2000 to 8000 cycles. In the liquid PC electrolyte, the δ-MnO2 shell fractures, delaminates, and separates from the gold nanowire current collector. These deleterious processes are not observed in the PMMA electrolyte.
Cymatics (from Ancient Greek: κῦμα, romanized: kyma, lit. ‘wave’) is a subset of modal vibrational phenomena. The term was coined by Hans Jenny (1904-1972), a Swiss follower of the philosophical school known as anthroposophy. Typically the surface of a plate, diaphragm, or membrane is vibrated, and regions of maximum and minimum displacement are made visible in a thin coating of particles, paste, or liquid.[1] Different patterns emerge in the excitatory medium depending on the geometry of the plate and the driving frequency.
[1] Jenny, Hans (July 2001). Cymatics: A Study of Wave Phenomena & Vibration (3rd ed.). Macromedia Press. ISBN978-1-888138-07-8.
On July 8, 1680, Robert Hooke was able to see the nodal patterns associated with the modes of vibration of glass plates. Hooke ran a bow along the edge of a glass plate covered with flour, and saw the nodal patterns emerge.[3]
[3]Ernst Florens Friedrich Chladni, Oxford Dictionary of Scientists, Oxford Univ. Press, 1999, p. 101 (archive.org link). Accessed 24 August 2015.
A standing bell or resting bell is an inverted bell, supported from below with the rim uppermost. Such bells are normally bowl-shaped, and exist in a wide range of sizes, from a few centimetres to a metre in diameter. They are often played by striking, but some—known as singing bowls—may also be played by rotating a mallet around the outside rim to produce a sustained musical note.
Sound Waves Could Speed Up Wound Healing
Sounds good to us BY LEVI SHARPE | PUBLISHED JUL 15, 2015 11:57 PM https://www.popsci.com/sound-waves-accelerate-healing/ Application of ultrasound has been shown to speed broken bone regeneration by one third, and even restore memory to mice with Alzheimer’s. Now researchers have found that ultrasound can accelerate healing time of skin wounds too.
Journal of Orthopaedic ResearchVolume 27, Issue 4 p. 458-465Research ArticleFree Access
Low-magnitude high-frequency vibration accelerates callus formation, mineralization, and fracture healing in rats
Kwok Sui Leung,Hong Fei Shi,Wing Hoi Cheung,Ling Qin,Wai Kin Ng,Kam Fai Tam,Ning TangFirst published: 13 March 2009https://doi.org/10.1002/jor.20753Citations: 80 Fracture healing is a biological regenerative process that follows a well-orchestrated sequence. Most healing is uneventful and enhancement of normal fracture healing is not commonly done, although it is clinically important in the recovery and regain of functions after fracture. This study investigated the osteogenic effect of low-magnitude high-frequency vibration (LMHFV, 35 Hz, 0.3 g) on the enhancement of fracture healing in rats with closed femoral shaft fracture by comparing with sham-treated control. Assessments with plain radiography, micro-CT as well as histomorphometry showed that the amount of callus was significantly larger (p = 0.001 for callus area, 2 weeks posttreatment); the remodeling of the callus into mature bone was significantly faster (p = 0.039, 4 weeks posttreatment) in the treatment group. The mechanical strength of the healed fracture in the treatment group at 4 weeks was significantly greater (p < 0.001). The results showed the acceleration of callus formation, mineralization, and fracture healing in the treatment group. It is concluded that LMHFV enhances healing in the closed femoral shaft fracture in rats. The potential clinical advantages shall be confirmed in the subsequent clinical trials. © 2008 Orthopaedic Research Society. Published by Wiley Periodicals, Inc. J Orthop Res 27: 458–465, 2009 https://onlinelibrary.wiley.com/doi/10.1002/jor.20753
How ultrasound helps wound heal THREE TIMES faster: Sound waves can even heal injuries that would otherwise lead to amputation
By Colin Fernandez for the Daily Mail23:22 12 Jul 2015, updated 00:42 13 Jul 2015 https://www.dailymail.co.uk/health/article-3158613/How-ultrasound-helps-wound-heal-THREE-TIMES-faster-Sound-waves-heal-injuries-lead-amputation.html
- High frequency soundwaves said to stimulate the natural healing process
- They could be ready to use in the NHS within three to four years
- Researchers said innovation could help millions with chronic wounds
Expedited wound healing with noncontact, low-frequency ultrasound therapy in chronic wounds: a retrospective analysis
Steven J Kavros et al. Adv Skin Wound Care. 2008 Sep. https://pubmed.ncbi.nlm.nih.gov/18769168/
Objective: To evaluate the clinical role of noncontact, low-frequency ultrasound therapy (MIST Therapy System; Celleration, Eden Prairie, Minnesota) in the treatment of chronic lower-extremity wounds.
Design: A retrospective observational study.
Setting: A multidisciplinary, vascular wound-healing clinic.
Patients: One hundred sixty-three patients who received MIST Therapy plus standard of care (treatment group) and 47 patients who received the standard of care alone (control group).
Interventions: All wounds in the control and treatment groups received the standard of wound care and were followed for 6 months. In the treatment group, MIST Therapy was administered to wounds 3 times per week for 90 days or until healed.
Main outcome measures: Proportion of wounds healed and wound volume reduction. Rate of healing was also quantified using 1-way analysis of variance to determine the slope of the regression line from starting volume to ending volume, where a steeper slope indicates a faster healing rate. Outcomes were evaluated in all wounds and etiology-specific subgroups.
Main results: A significantly greater percentage of wounds treated with MIST Therapy and standard of care healed as compared with those treated with the standard of care alone (53% vs 32%; P = 0.009). The slope of the regression line in the MIST arm (1.4) was steeper than the slope in the control arm (0.22; P = .002), indicating a faster rate of healing in the MIST-treated wounds.
Conclusion: The rate of healing and complete closure of chronic wounds in patients improved significantly when MIST Therapy was combined with standard wound care.
REVIEW Magnetic resonance angiography demonstrates vascular healing of carotid and vertebral artery dissections S E Kasner et al. Stroke. 1997 Oct. https://pubmed.ncbi.nlm.nih.gov/9341709/
Burning glass technology has been known since antiquity, as described by Greek and Roman writers who recorded the use of lenses to start fires for various purposes.[1] Pliny the Elder noted the use of glass vases filled with water to create a heat intense enough to ignite clothing, as well as convex lenses that were used to cauterize wounds.[2] Plutarch refers to a burning mirror made of joined triangular metal mirrors installed at the temple of the Vestal Virgins. Aristophanes mentions the burning lens in his play The Clouds (424 BC).[3]
Strepsiades. Have you ever seen a beautiful, transparent stone at the druggists’, with which you may kindle fire?
- Sherwood, Andrew N.; Nikolic, Milorad; Humphrey, John W.; Oleson, John P. (2019). Greek and Roman Technology: A Sourcebook of Translated Greek and Roman Texts. Routledge. p. 25. ISBN 978-1138927896.
- ^ Plantzos, Dimitris (1997). “Crystals and Lenses in the Graeco-Roman World”. American Journal of Archaeology. 101 (3): 451–464. doi:10.2307/507106. JSTOR 507106.
- ^ Aristophanes. “The Clouds”. The Internet Classics Archive. Daniel C. Stevenson, Web Atomics. Retrieved 21 February 2018.
While the effects of camera obscura were mentioned by Greek philosopher Aristotle in the 4th century BC, contemporary Chinese Mohists of China’s Warring States Period who compiled the Mozi described their experiments with burning mirrors and the pinhole camera.[7]
Needham, Joseph. Science and Civilization in China, vol. IV, part 1: Physics and Physical Technology (PDF). p. 98. Archived from the original (PDF) on 3 July 2017. Retrieved 5 September 2016.
REVIEW The first lens that we know of is the Assyrian Nimrud Lens, a round piece of glass from the 8th century BC found in Iraq. Even though we can’t be sure whether it was used as a burning glass, there are some ancient Egyptian hieroglyphs that depict the use of similar meniscus lenses during that same period. The discovery of these rudimental lenses paved the way for the use of mirrors and glasses for many different applications during the centuries. https://blog.febo.co/blog/the-history-of-burning-lens-from-burning-mirrors-to-solar-engraving/
The Nimrud lens, also called Layard lens, is an 8th-century BC piece of rock crystal which was unearthed in 1850 by Austen Henry Layard at the Assyrian palace of Nimrud in modern-day Iraq.[3][4] It may have been used as a magnifying glass or as a burning-glass to start fires by concentrating sunlight, or it may have been a piece of decorative inlay.[3]
- “The Nimrud lens / the Layard lens”. Collection database. The British Museum. Retrieved Oct 21, 2012.
- ^ Villiers, Geoffrey de; Pike, E. Roy (2016-10-16). The Limits of Resolution. CRC Press. ISBN 9781315350806.
Second coming of Jesus
Thayer’s #5036 ταχύς:
ταχύς, ταχεῖα, ταχύ, from Homer down, quick, fleet, speedy: opposed to βραδύς (as in Xenophon, mem. 4, 2, 25), εἰς τόἀκοῦσαι (A. V. swift to hear), James 1:19.
Thayer’s #5035 ταχύ:
ταχύ (neuter of the adjective ταχύς), adverb (from Pindar down), quickly, speedily (wihtout delay): Matthew 5:25; Matthew 28:7; Mark 16:8 Rec.; Luke 15:22 L Tr brackets WH; John 11:29; ἔρχεσθαι, Revelation 2:5 Rec.bez elz, ; ; forthwith, i. e. while in the use of my name he is performing mighty works, Mark 9:39.
Thayer’s #5034 τάχος:
τάχος, τάχους, τό, from Homer down, quickness, speed: ἐντάχει (often in Greek writings from Aeschylus and Pindar down), quickly, shortly, Acts 12:7; Acts 22:18; (); Romans 16:20; speedily, soon (German in Bälde), Luke 18:8; 1 Timothy 3:14 L TrWH; Revelation 1:1; Revelation 22:6.
Thayer’s #5033 τάχιστα:
τάχιστα (neuter plural of the superlative ταχιστος, from ταχύς), adverb (from Homer down), very quickly: ὡς τάχιστα, as quickly as possible (A. V. with all speed), Acts 17:15.
Thayer’s #5032 τάχειον:
[τάχειον, WH for τάχιον (which see; and cf. under the word εἰ, ἰ.) ταχέως (ταχύς), adverb (from Homer down), quickly, shortly: Luke 14:21; Luke 16:6; John 11:31; 1 Corinthians 4:19; Galatians 1:6; Philippians 2:19, 24; 2 Timothy 4:9; with the added suggestion of inconsiderateness (hastily): 2 Thessalonians 2:2; 1 Timothy 5:22.
STRONGS NT 5032: τάχιοντάχιον (WH τάχειον; see their Appendix, p. 154 and cf. εἰ, ἰ) (neuter of the comparitive ταχίων), adverb, for which the more ancient writers used θᾶσσονor θᾶττον, see Lob. ad Phryn., p. 76f; Winers Grammar, § 11, 2a.; (Buttmann, 27 (24)); more swiftly, more quickly: in comparison, John 20:4 (cf. Winers Grammar, 604 (562)); with the suppression of the second member of the comparison (Winer’s Grammar, 243 (228)): Hebrews 13:19 (sooner, namely, than would be the case without your prayers for me),23 (namely, than I depart); John 13:27(namely, than you seem to have resolved to); 1 Timothy 3:14 R G T(namely, than I anticipated).
Thayer’s #5031 ταχινός:
ταχινός, ταχινή, ταχινόν, from Theocritus down, swift, quick: of events soon to come or just impending, 2 Peter 1:14; 2 Peter 2:1 (Isaiah 59:7; Wis. 13:2; Sir. 18:26).
Thayer’s #5030 ταχέως:
ταχέως, (ταχύς), adv., [fr. Hom. down], quickly, shortly: Luke 14:21; 16:6; John 11:31; 1 Corinthians 4:19; Galations 1:6; Philipians 2:19,24; 2 Timothy 4:9; with added suggestion of inconsiderateness [hastily]; 2 Thessalonians 2:2; 1 Timothy 5:22.*
Thayer’s #5029 τάχα:
τάχα (ταχύς), adverb;
1. hastily, quickly, soon (so from Homer down).
2. as often in Greek writings from (Hesiod, Aeschylus), Herodotusdown, perhaps, peradventure: Romans 5:7; Philemon 1:15.
You should be aware that the literal Second Coming of Christ is a fundamental doctrine of the Christian faith.Therefore its denial is a heresy.
Indeed it is embedded in both the Nicene Creed and the Apostles’ Creed.
“And he shall come again with glory to judge both the quick and the dead, whose kingdom shall have no end.”
So when anyone denies this and claims that Christ has already returned “spiritually” in AD 70, that is both a lie and a heresy, since it overthrows the faith of some. Paul had something to say about this in 2 Timothy 2:16-18:
But shun profane and vain babblings: for they will increase unto more ungodliness. And their word will eat as doth a canker: of whom is Hymenaeus and Philetus; Who concerning the truth have erred, saying that the resurrection is past already; and overthrow the faith of some.
Lexical Information
In A Greek-English Lexicon of the New Testament and Other Early Christian Literature (BDAG), the following definition is given:
(1) Pertaining to a very brief period of time, with focus on speed of an activity or an event. (2) Pertaining to a relatively brief time subsequent to another point of time.2
Next, a definition from The Exegetical Dictionary of the New Testament (EDNT): As an adjective (tachys): “fast, swift”. It is only used as an adjective in James 1:19. As an adverb (tachy), it is used twelve other times, such as in Revelation 22, and it means, “soon, in a short time, or immediately thereafter (Mark 9:39), quickly, immediately, without delay (Matthew 5:25, 28:7,8 [“Depart quickly; cf. Mark 16:8]; Luke 15:22; John 11:29).”3
Finally, we turn to the Greek-English Lexicon of the New Testament based on Semantic
Domains: “pertaining to a very short extent of time—‘quickly, hurriedly, swift,
speedy.’”
4 One interesting example they give is of Judas’ betrayal of Jesus in John 13:27:
“‘what you are about to do, do it quickly [tacheōs – DR]’ Jn 13:27. Again, the emphasis is
upon the brief period of time before Judas is to do what he had set out to do.”
In conclusion, tachy means “a very brief period of time, with focus on speed of an
activity or an event.” So, it does mean fast, but it also pertains to imminence and not simply velocity. Revelation 22, then, claims on the surface that Jesus would come both soon and speedily.
New Testament Usage
Tachys/ tachy is used thirteen times in the New Testament: Matthew 5:25, 28:7-8; Mark 9:39; Luke 15:22; John 11:29; James 1:19; Revelation 2:16, 3:11, 11:14, 22:7, 12, 20. In the above verses, it is translated quick or quickly 12 times and soon once (Matthew 9:39)
2 Arndt, William et al. A Greek-English lexicon of the New Testament and other early Christian literature 2000 :
n. pag. Print.
3 Balz, Horst Robert, and Gerhard Schneider. Exegetical dictionary of the New Testament 1990– : n. pag. Print.
4 Louw, Johannes P., and Eugene Albert Nida. Greek-English lexicon of the New Testament: based on semantic
domains 1996 : n. pag. Print.
La Fotografía Espiritual es un tipo de fotografía desarrollada durante finales del siglo XIX que consistía en realizar fotografías mediante doble exposición en placas de Daguerrotipo para que diera la impresión de que algunos de los personajes fotografiados pareciera un espíritu translúcido de algún fallecido.
The Great Crown of Victory (Thai: พระมหาพิชัยมงกุฎ; RTGS: Phra Maha Phichai Mongkut) is one of the regalia of Thailand.
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