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Maths, Physics & Chemistry

showing 31-35 of 43 breaks

Grape expectations: how balls of water can mimic metallic objects in the microwave oven

When you see sparks in your microwave oven, it usually means you accidentally left a metallic object inside. So, imagine the surprise of millions of people who have observed in-person or online that under the right conditions grapes, cherry tomatoes, ground cherries (physalis), and olives... click to read more

  • Aaron Slepkov | Professor at Department of Physics & Astronomy, Trent University, Peterborough, Ontario, Canada
Views 2734
Reading time 4 min
published on Jul 26, 2019
Mussel powder engineered to kill pathogens

Hydrogen peroxide is a commonly used disinfectant. A typical household may have a bottle of 3% hydrogen peroxide solution for disinfecting minor cuts and scrapes. Concentrated hydrogen peroxide is also used in municipal wastewater and drinking water treatments, in petrochemical refinery applications, and in bleaching... click to read more

  • Bruce P. Lee | Professor at Department of Biomedical Engineering, Michigan Technological University, Houghton, USA
Views 2978
Reading time 3 min
published on May 24, 2019
Compressed air energy storage: a technology that (porous) rocks!

Climate Change is caused, in parts, by the increase in greenhouse gas emissions, such as carbon dioxide, to the atmosphere. One of the main sources of carbon dioxide is power plants. Hence, more and more renewable energy sources, commonly known as "renewables", such as wind,... click to read more

  • Julien Mouli-Castillo | Postdoctoral Research Assistant at The University of Edinburgh, Edinburgh, Scotland, United Kingdom
Views 2777
Reading time 3.5 min
published on May 16, 2019
Can robots teach us about animal flight?

Insights into animal flight control are of great interest not only for biologists but also for designers of bio-inspired flying robots. The common approach in animal flight research is to record the animals while maneuvering with high-speed cameras. The footage is processed to reconstruct the... click to read more

  • Matěj Karásek | Postdoctoral Research Fellow at Delft University of Technology, Delft, Netherlands
Views 2545
Reading time 3.5 min
published on Apr 10, 2019
Leidenfrost reinvents the wheel

We often test the temperature of our frying pans by throwing a few droplets of water: if they skate over the hot surface, it is time to cook our pancakes! Water mobility indeed arises above a well-defined temperature, as described in 1756 by Johan Leidenfrost... click to read more

  • Ambre Bouillant | PhD student at PMMH, ESPCI-Paris, PSL Research University, Paris, France
  • David Quéré | Research Director at PMMH, ESPCI-Paris, PSL Research University, Paris, France
Views 2641
Reading time 3.5 min
published on Mar 27, 2019