![]() Until now, however, physicists had assumed that the ponderomotive force would have a negligible effect on matter that is neutral. Depending on the amount of matter and the scale of this intensity gradient, the ponderomotive force can have a significant effect. If the electric field is oscillating, however, then the charged object is then exposed to a second force that is proportional to the field-intensity gradient. ‘Electrical pressure’Īll students are taught at school that when objects possessing electrical charge are exposed to an electric field, these objects experience an electric force that can lead to motion. As well as being of interest to fundamental physics, this ability to transfer large amounts of momentum to neutral particles could lead to a host of novel applications in surface science, say the researchers. Now, however, a team of physicists in Germany has shown that a little-known interaction caused by electric fields known as the “ponderomotive” force can accelerate neutral particles at up to 10 14 times the Earth’s gravitational acceleration. At the atomic scale, however, when it comes to shifting around neutral particles, gravity is incredibly ineffective compared with other fundamental interactions such as the strong and weak nuclear forces. To the adrenaline junkie midway through a bungee jump, gravity must feel like it can accelerate matter at a spectacular rate. Webinars Tune into online presentations that allow expert speakers to explain novel tools and applications.Video Watch our specially filmed videos to get a different slant on the latest science.Podcasts Our regular conversations with inspiring figures from the scientific community.Audio and video Explore the sights and sounds of the scientific world.Women in physics Celebrating women in physics and their contributions to the field. ![]() Supercool physics Experiments that probe the exotic behaviour of matter at ultralow temperatures depend on the latest cryogenics technology.The science and business of space Explore the latest trends and opportunities associated with designing, building, launching and exploiting space-based technologies.Revolutions in computing Find out how scientists are exploiting digital technologies to understand online behaviour and drive research progress.Nanotechnology in action The challenges and opportunities of turning advances in nanotechnology into commercial products.#BlackInPhysics Celebrating Black physicists and revealing a more complete picture of what a physicist looks like.Artificial intelligence Explore the ways in which today’s world relies on AI, and ponder how this technology might shape the world of tomorrow.Collections Explore special collections that bring together our best content on trending topics.Innovation showcases A round-up of the latest innovation from our corporate partners.Projects and facilities Follow the latest progress at the world’s top scientific experiments.Policy and funding Understand how emerging policy changes could affect your work and career.Education and outreach Learn about novel approaches to educating and inspiring the scientists of the future.Business and innovation Find out how recent scientific breakthroughs are driving business innovation and commercial growth.Impact Explore the value of scientific research for industry, the economy and society.Personalities Find out who’s doing what in industry and academia.Interviews Discover the views of leading figures in the scientific community. ![]()
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