Archives
- November 2024
- October 2024
- September 2024
- August 2024
- April 2024
- March 2024
- February 2024
- January 2024
- May 2023
- April 2023
- March 2023
- February 2023
- January 2023
- May 2022
- April 2022
- March 2022
- February 2022
- January 2022
- May 2021
- April 2021
- March 2021
- February 2021
- January 2021
- April 2020
- March 2020
- February 2020
- January 2020
- May 2019
- April 2019
- March 2019
- February 2019
- January 2019
- May 2018
- April 2018
- March 2018
- February 2018
- January 2018
- July 2017
- May 2017
- April 2017
- March 2017
- February 2017
- January 2017
- May 2016
- April 2016
- March 2016
- February 2016
- January 2016
- April 2015
- March 2015
- February 2015
- January 2015
- April 2014
- March 2014
- February 2014
- January 2014
- May 2013
- April 2013
- March 2013
- February 2013
- January 2013
- April 2012
- March 2012
- February 2012
Currently Used Categories
Tag Cloud
- astro201
- astro2110
- astrobiology
- astronomy
- blog1
- blog2
- blog3
- blog4
- blog5
- blog6
- blog7
- blog8
- blog9
- blog10
- brahe
- Class
- Comets
- Copernicus
- earth
- Europa
- extremophiles
- galilei
- galileo
- gravity
- history
- HW2
- HW6
- jupiter
- Kepler
- life
- Mars
- me
- Moon
- NASA
- Newton
- planets
- pluto
- saturn
- Solar System
- space
- technology
- telescopes
- tides
- Time
- Uncategorized
Author Archives: siyuan2016
Propulsion Methods
Image Source In the class, we talk about the measures to accelerate spacecraft and satellites that one day may make interstellar travel possible for humans in their lifetime. And in this blog I would like to introduce some other practical and hypothetical propulsion methods. The first method is a practical one called ion thruster, a […]
Continue reading
Leonids
image source The Leonids is a meteor shower associated with the comet Tempel-Tuttle. It gets its name from the location of its apparent radiant in the constellation Leo and has been famous for its most spectacular meteor storms since its identification in 1833. Since comet Tempel-Tuttle is a periodic comet with an orbital period of […]
Continue reading
Extrasolar planets
image source In the class, we learn about the astrometric technique, Doppler technique and direct imaging used to detect extrasolar planets. And in this blog, I’d like to introduce some other planet-hunting strategies that have proved to be applicable. The first method is called gravitational microlensing. A gravitational microlensing occurs only when two stars are […]
Continue reading
Extrasolar planets
image source In the class, we learn about the astrometric technique, Doppler technique and direct imaging used to detect extrasolar planets. And in this blog, I’d like to introduce some other planet-hunting strategies that have proved to be applicable. The first method is called gravitational microlensing. A gravitational microlensing occurs only when two stars are […] Continue reading
Climate Change
Image Source Volcano activity is one of the most important factors that affect global climate change. Strong volcanic eruptions will release huge amounts of SO2 and sulfate aerosols that will strongly absorb solar radiation into the stratosphere, creating a global layer of sulfuric acid haze and cooling the Earth’s climate for more than 1 year. […]
Continue reading
Climate Change
Image Source Volcano activity is one of the most important factors that affect global climate change. Strong volcanic eruptions will release huge amounts of SO2 and sulfate aerosols that will strongly absorb solar radiation into the stratosphere, creating a global layer of sulfuric acid haze and cooling the Earth’s climate for more than 1 year. […] Continue reading
Nuclear Fusion
Image Source Since the discovery of nuclear fission and nuclear fusion, people have thought to use nuclear reactions that release energy to generate heat for industrial production. Up to 2015, nuclear power has provided more than 10% of world’s electricity. Since fusion involves the merging of atomic nuclei and it’s so hard to get it […]
Continue reading
Nuclear Fusion
Image Source Since the discovery of nuclear fission and nuclear fusion, people have thought to use nuclear reactions that release energy to generate heat for industrial production. Up to 2015, nuclear power has provided more than 10% of world’s electricity. Since fusion involves the merging of atomic nuclei and it’s so hard to get it […] Continue reading
Telescope
image source Throughout human history, the invention and improvement of telescope occupied an indispensable place in the advancement of astronomy. And this blog is devoted to introducing the history of telescope in last four hundred years. The earliest known workingtelescopewas created by Hans Lippersheyin 1608 to “see things far away as if they are nearby”. […]
Continue reading
Celestial Navigation
Navigational Compass used in Ming Dynasty image source Before the invention of artificial satellites and development of data transformation, celestial navigation played an indispensable role in human’s exploration and discovery of newfound lands. And in this blog, I would like to introduce some celestial navigating technologies implemented in Zheng He’s treasury voyage, one […]
Continue reading
Posted in Class
Tagged astro2110, blog3, celestial navigation, 未分类
Comments Off on Celestial Navigation