Steam balloons could be used to lift space rockets to higher altitude for launch. Launching from high altitude reduces air drag and thus improves efficiency. The researchers present the method in an article published in The ...
Space Exploration
Aug 21, 2019
6
26
Scientists at DESY have achieved a new world record for an experimental type of miniature particle accelerator: For the first time, a terahertz powered accelerator more than doubled the energy of the injected electrons. At ...
Optics & Photonics
Jul 11, 2019
0
304
The most commonly used chemical in the dry cleaning industry is a solvent called perchloroethylene, or PERC. The Environmental Protection Agency has classified the chemical as a likely carcinogen, and the U.S. Occupational ...
Energy & Green Tech
Jun 28, 2019
0
0
As the global population grows, fresh water supplies are more precious than ever. While scientists and engineers know how to purify water, making those methods sustainable and energy efficient is another question.
Materials Science
Jun 26, 2019
0
1
One of the most spectacular facts of the last two centuries of economic history is the exponential growth in GDP per capita in most of the world. Figure 1 shows the rise (and the difference) in living standards for five countries ...
Economics & Business
May 31, 2019
4
186
The British boats were outnumbered by about eight to one by the French. Before long there were collisions and projectiles were thrown. The British were forced to retreat, returning to port with broken windows but luckily ...
Economics & Business
Mar 25, 2019
1
4
An international team of researchers has measured a quantum power increase in a quantum boost engine for the first time. In their paper published in the journal Physical Review Letters, the group outlines their experiments ...
Electric pressure cookers like the Instant Pot have grown in popularity in recent years. One reason for this is that they allow people to prepare meals more quickly. But a lot of people aren't sure why electric and stovetop ...
Other
Feb 14, 2019
0
5
Researchers from ITMO University report that they have predicted personality features such as gender using data from an online gaming platform. This is one of the first studies of machine learning applied to a large amount ...
Machine learning & AI
Feb 7, 2019
0
8
One way to produce clean water is to heat dirty water until it turns into steam. As the steam rises, it leaves behind the heavier contaminants and can be collected and cooled, providing clean water. There are many ways to ...
