| 词条 | Planet Simulator |
| 释义 |
The Planet Simulator (also known as a Planetary Simulator) is a machine designed to study the origin of life on planet Earth and beyond. The simulator machine was announced by researchers at McMaster University on behalf of the Origins Institute on 4 October 2018.[1][2][3][4][5][6] The machine was developed primarily to study a theory that suggests life on early Earth began in "warm little ponds", rather than in deep ocean vents, nearly four billion ago.[3] The simulator can recreate conditions of the primitive Earth to see whether cellular life can be created, and then later, evolve.[3] According to physicist Maikel Rheinstadter, who is also the director of the simulator project, "We want to understand how the first living cell was formed - how the Earth moved from a chemical world to a biological world."[2] The one-of-a-kind planet simulator is about the size of a microwave oven and can control temperature, humidity, pressure, atmosphere and radiation levels that may be consistent with conditions on the early Earth, or conditions on other astronomical bodies, including other planets, exoplanets and the like.[3] The simulator project, begun in 2012, was funded with $1 million from the Canada Foundation for Innovation, the Ontario government and McMaster University, and was built by [https://angstromengineering.com/ Angstrom Engineering Inc] of Kitchener, Ontario.[1][5] ObservationsAccording to researchers, preliminary tests with the simulator, under possible conditions of the early Earth, created protocells, not living but very important nonetheless.[3] According to biologist David Deamer, the machine is a game changer, and the cells produced so far are "significant". The "cells are not alive, but are evolutionary steps toward a living system of molecules ... [the simulator] opens up a lot of experimental activities that were literally impossible before.”[3] Based on initial tests with the new simulator technology, project director Rheinstadter stated that it "seems that the formation of life is probably a relatively frequent process in the universe".[5] See also
References1. ^1 {{cite news |last=Balch |first=Erica |title=Ground-breaking lab poised to unlock the mystery of the origins of life on Earth and beyond |url=https://brighterworld.mcmaster.ca/articles/ground-breaking-lab-poised-to-unlock-the-mystery-of-the-origins-of-life-on-earth-and-beyond/ |date=4 October 2018 |work=McMaster University |accessdate=4 October 2018 }} 2. ^1 {{cite news |author=Staff |title=Ground-breaking lab poised to unlock the mystery of the origins of life |url=https://www.eurekalert.org/pub_releases/2018-10/mu-glp100418.php |date=4 October 2018 |work=EurekAlert! |accessdate=14 October 2018 }} 3. ^1 2 3 4 5 {{cite news |last=Casey |first=Liam |title=McMaster University researchers testing origins of life theory in new planet simulator |url=https://globalnews.ca/news/4516282/mcmaster-researchers-planet-simulator/ |date=4 October 2018 |work=Global News |accessdate=14 October 2018 }} 4. ^{{cite web |author=Staff |title=Planet Simulator |url=https://www.intravisiongroup.com/planet-simulator |date=2018 |work=IntraVisionGroup.com |accessdate=14 October 2018 }} 5. ^1 2 {{cite news |last=Chung |first=Emily |title=Canadian researchers use new 'planet simulator' to probe origins of life - 'Life is probably a relatively frequent process in the universe' new experiments suggests |url=https://www.cbc.ca/news/technology/origins-of-life-lab-1.4852248 |date=5 October 2018 |work=CBC News |accessdate=14 October 2018 }} 6. ^{{cite web |last=Anderson |first=Paul Scott |title=New technology may help solve mystery of life's origins - How did life on Earth begin? A new technology, called Planet Simulator, might finally help solve the mystery. |url=http://earthsky.org/space/new-technology-solve-mystery-of-lifes-origins |date=14 October 2018 |work=EarthSky |accessdate=14 October 2018 }} External links
6 : Astrobiology|Evolutionarily significant biological phenomena|Evolutionary biology|Origin of life|Origins|Prebiotic chemistry |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。