Physical Sciences

A discovery in fluid dynamics with cosmological implications

The inflationary universe: A new discovery in relativistic fluid dynamics could help scientists understand the expansion and fate of the universe.

Normally, fluid dynamics and cosmology are widely separate disciplines. Problems like the flow of water through a pipe have little to do with the evolution and fate of the universe; but, as it turns out, if one allow fluids to move near the speed of light, one will find some interesting properties...

 
 

Closest star flyby of the solar system occurred 70,000 years ago

Images of a red dwarf star, the type of star that was involved in the flyby.
Source: Wikimedia Commons

A group of astronomers from the US, Europe, South Africa, and Chile have determined that, approximately 70,000 years ago, a recently discovered star is likely to have passed through the Oort Cloud, a region at the edge of the solar system from which comets arise (1). Its average distance at...

 
 

Blacklist for fossil fuels revealed to limit global warming

A recent analysis reveals which nations should especially refrain from exploiting much of their carbon-based energy reserves when limiting global warming temperature to 2 °C, Michael Jakob and Jerome Hilaire reported online in the journal Nature on January 7, 2015. Source: http://dotearth.blogs.nytimes.com/2013/05/03/on-unburnable-carbon-and-the-specter-of-a-carbon-bubble/?_r=0

A recent analysis reveals which nations should especially refrain from exploiting much of their carbon-based energy reserves when limiting global warming temperature to 2 °C, Michael Jakob and Jerome Hilaire reported online in the journal Nature on January 7, 2015. Source: http://dotearth.blogs.nytimes.com/2013/05/03/on-unburnable-carbon-and-the-specter-of-a-carbon-bubble/?_r=0 In 2010, governments from around the world gathered...

 
 

New Research Re-Creates Planets in the Lab

Researchers have re-created conditions of 'super-Earths' in the lab, planets with masses five times that of the Earth. 
Source: Wikimedia Commons

New laser-based compression experiments by Lawrence Livermore National Laboratory (LLNL), Bayreuth University, and the University of California, Berkeley, have recreated conditions of cores of super-Earths, planets with masses five times that of the Earth. Through a combination of laser-driven shock compression, a technique that uses lasers to send a strong...

 
 

Researchers Create Tiny Quantum Laser

An example of CdTe quantum dots of different sizes as visualized by luminescence spectra

Scientists at Princeton University have managed to create an extremely small laser that could have implications for the creation of quantum computers in the near future. The device draws approximately ten billion times less current than a typical light bulb and is about the size of a grain of rice....

 
 
 
 
 

Mission Statement

Founded in 1998, the Dartmouth Undergraduate Journal of Science aims to increase scientific awareness within the Dartmouth community by providing an interdisciplinary forum for sharing undergraduate research and enriching scientific knowledge.

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