"Once we had this projection, which was covered in dots representing the positions of the atoms from the corridor experiment, we used a reducing pantograph ... we wrote a paper outlining our ...

The machine has an arm that can hold a standard pen or pencil and can reproduce the programmed signature on paper. • The device is not a new concept. A precursor to the Autopen was the 19th-century ...

All bags are not created equal when it comes to the environment. And paper might not be as green as you think. Credit...Photo by Tony Cenicola/The New York Times Supported by By Rachel Nuwer With ...