Metadata of the Chapter That Will Be Visualized Online
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Randal Koene Page 3
CRYONICS 4th Quarter 2019 | Vol 40, Issue 4 www.alcor.org Scholar Profile: Randal Koene page 3 Cryonics in China and Australia Cryonics and Public Skepticism: page 19 Meeting The Challenges to Our Credibility page 24 CRYONICS Editorial Board Contents Saul Kent Ralph C. Merkle, Ph.D. R. Michael Perry, Ph.D. 3 Scholar Profile: Randal Koene Accomplished neuroscientist and founder of the only dedicated Editor whole brain emulation nonprofit in existence, Dr. Randal Koene Aschwin de Wolf is no stranger to standing out. Responsible for coining the term Contributing Writers that put this niche but growing field on the map, Koene is working Ben Best hard to make humans more adaptable than ever before. In his Randal Koene R. Michael Perry, Ph.D. vision of the future, minds will be substrate-independent, with Nicole Weinstock full or even enhanced functioning on a limitless and changing Aschwin de Wolf menu of platforms. Copyright 2019 by Alcor Life Extension Foundation 19 Cryonics in China and Australia All rights reserved. Ben Reports on the emerging cryonics industry in China and the plans to create a Reproduction, in whole or part, new cryonics organization in Australia. without permission is prohibited. 24 FOR THE RECORD Cryonics magazine is published Cryonics and Public Skepticism: Meeting the Challenges to Our quarterly. Credibility Cryonics has been viewed with skepticism or hostility by some, including some Please note: If you change your scientists, ever since it started in the 1960s, even though (we like to remind the address less than a month before the naysayers) its intended basis is strictly scientific. -
Diamondoid Mechanosynthesis Prepared for the International Technology Roadmap for Productive Nanosystems
IMM White Paper Scanning Probe Diamondoid Mechanosynthesis Prepared for the International Technology Roadmap for Productive Nanosystems 1 August 2007 D.R. Forrest, R. A. Freitas, N. Jacobstein One proposed pathway to atomically precise manufacturing is scanning probe diamondoid mechanosynthesis (DMS): employing scanning probe technology for positional control in combination with novel reactive tips to fabricate atomically-precise diamondoid components under positional control. This pathway has its roots in the 1986 book Engines of Creation, in which the manufacture of diamondoid parts was proposed as a long-term objective by Drexler [1], and in the 1989 demonstration by Donald Eigler at IBM that individual atoms could be manipulated by a scanning tunelling microscope [2]. The proposed DMS-based pathway would skip the intermediate enabling technologies proposed by Drexler [1a, 1b, 1c] (these begin with polymeric structures and solution-phase synthesis) and would instead move toward advanced DMS in a more direct way. Although DMS has not yet been realized experimentally, there is a strong base of experimental results and theory that indicate it can be achieved in the near term. • Scanning probe positional assembly with single atoms has been successfully demonstrated in by different research groups for Fe and CO on Ag, Si on Si, and H on Si and CNHCH3. • Theoretical treatments of tip reactions show that carbon dimers1 can be transferred to diamond surfaces with high fidelity. • A study on tip design showed that many variations on a design turn out to be suitable for accurate carbon dimer placement. Therefore, efforts can be focused on the variations of tooltips of many kinds that are easier to synthesize. -
Nanoscience and Nanotechnologies: Opportunities and Uncertainties
ISBN 0 85403 604 0 © The Royal Society 2004 Apart from any fair dealing for the purposes of research or private study, or criticism or review, as permitted under the UK Copyright, Designs and Patents Act (1998), no part of this publication may be reproduced, stored or transmitted in any form or by any means, without the prior permission in writing of the publisher, or, in the case of reprographic reproduction, in accordance with the terms of licences issued by the Copyright Licensing Agency in the UK, or in accordance with the terms of licenses issued by the appropriate reproduction rights organization outside the UK. Enquiries concerning reproduction outside the terms stated here should be sent to: Science Policy Section The Royal Society 6–9 Carlton House Terrace London SW1Y 5AG email [email protected] Typeset in Frutiger by the Royal Society Proof reading and production management by the Clyvedon Press, Cardiff, UK Printed by Latimer Trend Ltd, Plymouth, UK ii | July 2004 | Nanoscience and nanotechnologies The Royal Society & The Royal Academy of Engineering Nanoscience and nanotechnologies: opportunities and uncertainties Contents page Summary vii 1 Introduction 1 1.1 Hopes and concerns about nanoscience and nanotechnologies 1 1.2 Terms of reference and conduct of the study 2 1.3 Report overview 2 1.4 Next steps 3 2 What are nanoscience and nanotechnologies? 5 3 Science and applications 7 3.1 Introduction 7 3.2 Nanomaterials 7 3.2.1 Introduction to nanomaterials 7 3.2.2 Nanoscience in this area 8 3.2.3 Applications 10 3.3 Nanometrology -
Chapter 3 Green Grass, Red Blood, Blueprint
Chapter 3 Green grass, red blood, blueprint: reflections on life, self-replication, and evolution M. Ciofalo Dipartimento di Ingegneria Nucleare, Università degli Studi di Palermo, Italy. Abstract Following pioneering work by von Neumann in the late 1940s, the goal of achieving self- replication in artefacts has been pursued by a variety of approaches, involving either virtual entities like cellular automata and computer programs or, to a lesser extent, real physical devices. An ample review of the major achievements in these diverse fields is given, and their practical and theoretical relevance is discussed. Possible future developments, notably regarding nanotech- nology and space exploration, are also outlined. The most relevant theoretical problems posed by self-replication are discussed in the light of current knowledge regarding life and its origins. Living entities are semiotic systems, in which physical structures have come to perform symbolic functions. The great complexity of biomolecules and of even the most primitive organisms is not a gratuitous complication, but a necessary condition for homeostasis, self-replication and open- ended evolution in a changing environment. Such requisites will have to be matched by artificial devices if their non-trivial self-replication and autonomous development are to be attained. 1 Of crystals and colloids Wordsworth’s God had his dwelling in the light of setting suns. But the God who dwells there seems to me most probably the God of the atom, the star, and the crystal. Mine, if I have one, reveals Himself in another class of phenomena. He makes the grass green and the blood red. (J.W. Krutch, 1950, [1]) The lines in the epigraph are excerpted from the famous essay ‘The colloid and the crystal’, written in 1950 by the American literary naturalist Joseph Wood Krutch. -
Industrial Ecology: a New Perspective on the Future of the Industrial System
Industrial Ecology: a new perspective on the future of the industrial system (President's lecture, Assemblée annuelle de la Société Suisse de Pneumologie, Genève, 30 mars 2001.) Suren Erkman Institute for Communication and Analysis of Science and Technology (ICAST), P. O. Box 474, CH-1211 Geneva 12, Switzerland Introduction Industrial ecology? A surprising, intriguing expression that immediately draws our attention. The spontaneous reaction is that «industrial ecology» is a contradiction in terms, something of an oxymoron, like «obscure clarity» or «burning ice». Why this reflex? Probably because we are used to considering the industrial system as isolated from the Biosphere, with factories and cities on one side and nature on the other, the problem consisting in trying to minimize the impact of the industrial system on what is «outside» of it: its surroundings, the «environment». As early as the 1950’s, this end-of-pipe angle was the one adopted by ecologists, whose first serious studies focused on the consequences of the various forms of pollution on nature. In this perspective on the industrial system, human industrial activity as such remained outside of the field of research. Industrial ecology explores the opposite assumption: the industrial system can be seen as a certain kind of ecosystem. After all, the industrial system, just as natural ecosystems, can be described as a particular distribution of materials, energy, and information flows. Furthermore, the entire industrial system relies on resources and services provided by the Biosphere, from which it cannot be dissociated. (It should be specified that .«industrial», in the context of industrial ecology, refers to all human activities occurring within the modern technological society. -
Nanorobot Construction Crews
Nanorobot Construction Crews Jaeseung Jeong, Ph.D Department of Bio and Brain engineering, KAIST Nanorobotics • Nanorobotics is the technology of creating machines or robots atltthit or close to the microscopi c scal lfe of a nanomet res (10-9 metres). More specifically, nanorobotics refers to the still largely ‘hypothetical’ nanotechnology engineering discipline of designing and building nanorobots. • Nanorobots ((,,nanobots, nanoids, nanites or nanonites ) would be typically devices ranging in size from 0.1-10 micrometers and constructed of nanoscale or molecular components. As no artificial non-biological nanorobots have yet been created, they remain a ‘hypothetical’ concept. • Another definition sometimes used is a robot which allows precision interactions with nanoscale objects , or can manipulate with nanoscale resolution. • Followingggpp this definition even a large apparatus such as an atomic force microscope can be considered a nanorobotic instrument when configured to perform nanomanipulation. • Also, macroscalble robots or mi crorob ots which can move wi th nanoscale precision can also be considered nanorobots. The T-1000 in Terminator 2: Judggyment Day • Since nanorobots would be microscopic in size , it would probably be necessary for very large numbers of them to work together to perform microscopic and macroscopic tasks. • These nanorobot swarms are fdifound in many sci ence fi fitiction stories, such as The T-1000 in Terminator 2: Judgment Day, nanomachine i n Meta l G ear So lid. • The word "nanobot" (also "nanite",,g, "nanogene", or "nanoant") is often used to indicate this fictional context and is a n info rma l o r eve n pejo rat ive term to refer to the engineering concept of nanorobots. -
Diffie and Hellman Receive 2015 Turing Award Rod Searcey/Stanford University
Diffie and Hellman Receive 2015 Turing Award Rod Searcey/Stanford University. Linda A. Cicero/Stanford News Service. Whitfield Diffie Martin E. Hellman ernment–private sector relations, and attracts billions of Whitfield Diffie, former chief security officer of Sun Mi- dollars in research and development,” said ACM President crosystems, and Martin E. Hellman, professor emeritus Alexander L. Wolf. “In 1976, Diffie and Hellman imagined of electrical engineering at Stanford University, have been a future where people would regularly communicate awarded the 2015 A. M. Turing Award of the Association through electronic networks and be vulnerable to having for Computing Machinery for their critical contributions their communications stolen or altered. Now, after nearly to modern cryptography. forty years, we see that their forecasts were remarkably Citation prescient.” The ability for two parties to use encryption to commu- “Public-key cryptography is fundamental for our indus- nicate privately over an otherwise insecure channel is try,” said Andrei Broder, Google Distinguished Scientist. fundamental for billions of people around the world. On “The ability to protect private data rests on protocols for a daily basis, individuals establish secure online connec- confirming an owner’s identity and for ensuring the integ- tions with banks, e-commerce sites, email servers, and the rity and confidentiality of communications. These widely cloud. Diffie and Hellman’s groundbreaking 1976 paper, used protocols were made possible through the ideas and “New Directions in Cryptography,” introduced the ideas of methods pioneered by Diffie and Hellman.” public-key cryptography and digital signatures, which are Cryptography is a practice that facilitates communi- the foundation for most regularly used security protocols cation between two parties so that the communication on the Internet today. -
The Molecular Epair of the Rain, Part II by Ralph Merkle, Ph.D
THIS ISSUE'S FEATURE: The Molecular epair of the rain, Part II By Ralph Merkle, Ph.D. Michael Perry, Ph.D. introduces us to "The Realities of Patient Storage" in this issue's For the Record lUS: Book Reviews, Relocation Reports, and Cryonics Fiction by Linda Dunn and Richard Shock ISSN 1054-4305 $4.50 "What is Cryonics?" Cryonics is the ultra-low-temperature preservation (biostasis) of terminal patients. The goal of biostasis and the technology of cryonics is the transport of today's terminal patients to a time in the future when cell and tissue repair technology will be available, and restoration to full function and health will be possible, a time when cures will exist for virtually all of today's diseases, including aging. As human knowledge and medical technology continue to expand in scope, people considered beyond hope of restoration (by today's medical standards) will be restored to health. (This historical trend is very clear.) The coming control over living systems should allow fabrication of new organisms and sub-cell-sized devices for repair and revival of patients waiting in cryonic suspension. The challenge for cryonicists today is to devise techniques that will ensure the patients' survival. Subscribe to CRY 0 ICS Magazine! CRYONICS magazine explores the practical, research, nanotechnology and molecular scientific, and social aspects of ultra engineering, book reviews, the physical low temperature pre format of memory and personality, the servation of humans. nature of identity, cryonics history, and As the quarterly much more. ·s FEAfURE' • .r h< • • f h THISISSUE oena\f'JI pu bl 1cat1on o t e •Ao\ecu\ar"' ~"h~>~'"''·~··o· C r If you're a first- The IV\ Bg Ra~1 RYfl'J\ Alcor Foundation-the THIS issuE's • ~L vJcs time subscriber, you p\1.\l. -
Molecular Nanotechnology - Wikipedia, the Free Encyclopedia
Molecular nanotechnology - Wikipedia, the free encyclopedia http://en.wikipedia.org/wiki/Molecular_manufacturing Molecular nanotechnology From Wikipedia, the free encyclopedia (Redirected from Molecular manufacturing) Part of the article series on Molecular nanotechnology (MNT) is the concept of Nanotechnology topics Molecular Nanotechnology engineering functional mechanical systems at the History · Implications Applications · Organizations molecular scale.[1] An equivalent definition would be Molecular assembler Popular culture · List of topics "machines at the molecular scale designed and built Mechanosynthesis Subfields and related fields atom-by-atom". This is distinct from nanoscale Nanorobotics Nanomedicine materials. Based on Richard Feynman's vision of Molecular self-assembly Grey goo miniature factories using nanomachines to build Molecular electronics K. Eric Drexler complex products (including additional Scanning probe microscopy Engines of Creation Nanolithography nanomachines), this advanced form of See also: Nanotechnology Molecular nanotechnology [2] nanotechnology (or molecular manufacturing ) Nanomaterials would make use of positionally-controlled Nanomaterials · Fullerene mechanosynthesis guided by molecular machine systems. MNT would involve combining Carbon nanotubes physical principles demonstrated by chemistry, other nanotechnologies, and the molecular Nanotube membranes machinery Fullerene chemistry Applications · Popular culture Timeline · Carbon allotropes Nanoparticles · Quantum dots Colloidal gold · Colloidal -
Practical Forward Secure Signatures Using Minimal Security Assumptions
Practical Forward Secure Signatures using Minimal Security Assumptions Vom Fachbereich Informatik der Technischen Universit¨atDarmstadt genehmigte Dissertation zur Erlangung des Grades Doktor rerum naturalium (Dr. rer. nat.) von Dipl.-Inform. Andreas H¨ulsing geboren in Karlsruhe. Referenten: Prof. Dr. Johannes Buchmann Prof. Dr. Tanja Lange Tag der Einreichung: 07. August 2013 Tag der m¨undlichen Pr¨ufung: 23. September 2013 Hochschulkennziffer: D 17 Darmstadt 2013 List of Publications [1] Johannes Buchmann, Erik Dahmen, Sarah Ereth, Andreas H¨ulsing,and Markus R¨uckert. On the security of the Winternitz one-time signature scheme. In A. Ni- taj and D. Pointcheval, editors, Africacrypt 2011, volume 6737 of Lecture Notes in Computer Science, pages 363{378. Springer Berlin / Heidelberg, 2011. Cited on page 17. [2] Johannes Buchmann, Erik Dahmen, and Andreas H¨ulsing.XMSS - a practical forward secure signature scheme based on minimal security assumptions. In Bo- Yin Yang, editor, Post-Quantum Cryptography, volume 7071 of Lecture Notes in Computer Science, pages 117{129. Springer Berlin / Heidelberg, 2011. Cited on pages 41, 73, and 81. [3] Andreas H¨ulsing,Albrecht Petzoldt, Michael Schneider, and Sidi Mohamed El Yousfi Alaoui. Postquantum Signaturverfahren Heute. In Ulrich Waldmann, editor, 22. SIT-Smartcard Workshop 2012, IHK Darmstadt, Feb 2012. Fraun- hofer Verlag Stuttgart. [4] Andreas H¨ulsing,Christoph Busold, and Johannes Buchmann. Forward secure signatures on smart cards. In Lars R. Knudsen and Huapeng Wu, editors, Se- lected Areas in Cryptography, volume 7707 of Lecture Notes in Computer Science, pages 66{80. Springer Berlin Heidelberg, 2013. Cited on pages 63, 73, and 81. [5] Johannes Braun, Andreas H¨ulsing,Alex Wiesmaier, Martin A.G. -
An Abstract Scripting Language for Assembly of Mechanical Nanocomputer Architectures
MolML: An Abstract Scripting Language for Assembly of Mechanical Nanocomputer Architectures Bryan W. Wagner and Thomas P. Way Applied Computing Technology Laboratory Department of Computing Sciences Villanova University, Villanova, PA 19085 [email protected] [email protected] Abstract Sizes of computer components are reaching nanoscale dimensions, causing physical limitations to be met in traditional computer architectures. This study surveys the field of alternative nanocomputer architectures, including the nano-mechanical computational machines first proposed by Eric Drexler. A high-level XML programming language, MolML, is introduced as a scripting language for hydrocarbon assembly of mechanical nanocomputers. Keywords: Nanocomputer, hydrocarbon assembler, scripting, simulation 1. Introduction As Moore’s Law continues to predict the trend of continually increasing densities of transistors on ever diminishing surface dimensions, components for computer architectures are rapidly approaching sizes that can be measured in nanometers, one billionth of a meter. However, as silicon transistors become measurable on the nanoscale, certain physical properties hinder their ability to function properly as they do on the macroscale. Among these well-known physical limitations are leakage, threshold voltage control, tunneling, electro-migration, high interconnect resistance, and crosstalk. These issues can restrict electrical silicon transistor functionality to the extent that future computing designs will need to consider alternative materials and architectures [1]. Nanoscale computer architectures introduce other challenges as well. Processors are still manufactured using lithographic techniques. Lithography involves the use of a printing press to stamp, or otherwise etch or inscribe, a design into a smooth surface. Computer circuitry is constructed in this manner, and defective units are discarded. Thus, there is a probabilistic factor for error in the manufacturing process. -
Superfluidity at Room Temperature Extreme Cosmic Rays Reveal Clues to Origin
CERN Courier December 2017 CERN Courier December 2017 Sciencewatch Astrowatch C OMPILED BY J OHN S WAIN , N ORTHEASTERN U NIVERSITY C OMPILED BY M ERLIN K OLE , D EPARTMENT OF PARTICLE P HYSICS , U NIVERSITY OF G ENEVA Superfluidity at room temperature Extreme cosmic rays reveal clues to origin The energy spectrum of cosmic rays 90 A sky map in equatorial continuously bombarding the Earth spans 0.46 co-ordinates showing the Superfluidity, like superconductivity, is Interference fringes in a polariton many orders of magnitude, with the highest cosmic-ray flux above typically thought of as needing very low condensate as it transitions to a fluid with energy events topping 108 km 8 EeV, revealing a clear TeV. Where these –2 temperatures that alter the fundamental zero viscosity, from simulations. extreme particles come from, however, has sr dipole structure with a quantum-mechanical behaviour of materials. remained a mystery since their discovery 360 0 0.42 –1 significance of 5. 2σ. The yr Pierre Auger Collaboration Surprisingly, Giovanni Lerario of CNR thin amorphous layer of fluorescent organic more than 50 years ago. Now the Pierre Auger –1 galactic centre is marked NANOTEC Institute of Nanotechnology in material between them. A laser pulse collaboration has published results showing with an asterisk and the Italy and colleagues now report what appears creates a polariton flow with well-defined that the arrival direction of ultra-high-energy galactic plane is shown by to be superfluidity at room temperature. The energy, revealing itself as a superfluid by 0.38 cosmic rays (UHECRs) is far from uniform, –90 a dashed line.