Motors have aerospace, vehicle, and even vacuum cleaner applications - motors are important in any number of applications. "Right now we're benchmarking a smaller motor, and then we'll try and build bigger ones. "Eventually we can go to higher speeds and higher powers with these designs," McHenry said. The design, which is funded by the Department of Energy (DOE) Advance Manufacturing Office, combines permanent magnets with the MANCs. Most recently, they've benchmarked it at 6,000 rotations per minute and are looking to build bigger ones that will spin even faster. McHenry's group, in collaboration with the National Energy Technology Laboratory (NETL), NASA Glenn Research Center and North Carolina State University, are designing a 2.5-kilowatt motor that weighs less than 2.5 kilograms. The gray portion represents where MANCs are used, and the blue represents the permanent magnets. "As a result, you can either shrink the size of the motor at a given power density or make a higher power motor at the same size," McHenry said.ĭrawing of the rotor and stator in a motor. MANCs provide an alternative to silicon steels and, because of their high resistivity (how strongly they oppose an electrical current), they don't heat up as much and can therefore spin at much higher speeds. Most magnetic steels, which is what most motors are made of, lose power at higher frequencies because they heat up."Ĭurrent motors are typically made from silicon steels. "When you rotate a motor at high speeds, the magnetic material switches at a higher frequency. "The power of a motor depends on its speed," MSE Professor Michael McHenry said. Through synthesizing metal amorphous nanocomposite materials (MANCs), their goal is to make smaller motors that deliver comparable power. EarthTime was created by CREATE Lab (the Community Robotics, Education and Technology Empowerment Lab) at Carnegie Mellon University, in partnership with the World Economic Forum and other organizations.Researchers in Carnegie Mellon University's Department of Materials Science and Engineering are studying soft magnetic materials to make hard changes to motors. Nourbakhsh, also a Global Future Council member at the World Economic Forum, further added that the EarthTime site tries to build the common ground that they believe is essential to the discourse that all people must have as stewards of our planet and our joint future. We all must be involved in understanding Earth’s changes and how we can work together to bring about our desired sustainable future into reality.” No single discipline can make sense of all that is now happening and no citizen is free from the consequences of what we all do next. Illah Nourbakhsh, Professor of Robotics, Carnegie Mellon University, and Director, CREATE Lab said, The Earth is changing dramatically. The animated video shows the patterns and the connections behind some of the significant social and political trends of the past two decades and how they have resulted in quickly changing landscapes.ĮarthTime wants to inform the world leaders as well as, about the major environmental and geoeconomic shifts, from air pollution to inequality, that is quickly changing our planet. The aim of the website is to make people see the dramatic images of Earth taken from space and how rising human activities are changing the planet. The EarthTime website was launched on April 22, on the occasion of World Earth Day. This animated video of the Earth’s photos taken from space along with expert analysis has been presented in a new website named EarthTime.ĮarthTime has combined the images taken by NASA satellites from 1984 to 2016 and the diverse data layers consisting of over 300 free, open-source, geospatial data sets taken from the World Bank, Berkeley Earth, the UNHCR, the Stockholm International Peace Research Institute, Climate Central, WWF, the International Renewable Energy Agency and others. Through these time-lapse satellite photos, one can see how glaciers are melting and also know where refugees are migrating. The animated video consists of many satellite images that are combined together to make people know how human activities are quickly changing the planet. A new satellite video has revealed how fast the humans are changing the Earth.
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