DARPA Projects Aims for New Magnetic Gradiometers Able to Detect FemtoTesla Fields without Shielding March 20, 2017/Client: /by spireco1 spireco1 https://spirecommunications.com/wp-content/uploads/2017/12/SpireLogo-300x138.png spireco12017-03-20 13:29:192017-03-20 13:29:19DARPA Projects Aims for New Magnetic Gradiometers Able to Detect FemtoTesla Fields without Shielding