arpa-e archives - planet forward - 克罗地亚vs加拿大让球 //www.getitdoneaz.com/tag/arpa-e/ inspiring stories to 2022年卡塔尔世界杯官网 tue, 28 feb 2023 18:44:28 +0000 en-us hourly 1 https://wordpress.org/?v=6.6.1 ensure a sustainable supply of rare earth elements for producing renewable energy and other important technologies. //www.getitdoneaz.com/story/ensure-a-sustainable-supply-of-rare-earth-elements-for-producing-renewable-energy-and-other/ thu, 24 mar 2011 16:56:16 +0000 http://dpetrov.2create.studio/planet/wordpress/ensure-a-sustainable-supply-of-rare-earth-elements-for-producing-renewable-energy-and-other-important-technologies/ critical materials, including rare earth elements (ree) and strategic metals, are essential for technologies used in a variety of applications such as cell phones, computers, cars, airplanes, batteries, and renewable energy systems – and therefore critical to our national security and economy. the united states is not self-sufficient in most of these critical materials, and for many of them we are reliant on foreign sources prone to disruption. for example, more than 97 percent of the u.s. and world supply of ree comes from china, and this supply has been restricted recently for several reasons, including political pressure. american policymakers can take action to strengthen american expertise in the occurrence, discovery, extraction, processing, and recycling of these commodities.

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energy secretary steven chu answers our energy question //www.getitdoneaz.com/story/energy-secretary-steven-chu-answers-our-energy-question/ tue, 01 mar 2011 22:50:26 +0000 http://dpetrov.2create.studio/planet/wordpress/energy-secretary-steven-chu-answers-our-energy-question/ at the arpa-e energy innovation summit, secretary steven chu tells us the innovations he think will change our energy future. which one do you think will be the game changer? share your comment.

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