- contact-electricity, the most
electropositive metals giving the
largest photo-
electric effect. In 1887,
Heinrich Hertz observed the
photoelectric effect and...
-
electrons move
toward the
first dynode because they are
accelerated by the
electric field. They each
arrive with ≈100 eV
kinetic energy imparted by the potential...
- A
light curtain is a
safety device that
detects when a beam of
infrared light has been
broken by a
person p****ing
through an area.
Light curtains, now...
- so, they
employ a
meter administrator who will use
daily data from a
photo-
electric control unit (PECU)
array which is then used to
calculate the energy...
-
primarily intended to
blind humans but was also
reported to
damage the
photo-
electric elements in
laser rangefinders,
videocameras and
missile s****ers. Roughly...
- edu/ead/hua23003/catalog
Accessed May 8, 2024. US 1901577
Photo-
electric tube US 1901578
Method of
preparing photo-
electric tubes US 2206713
Photoelectric apparatus...
- Hunter,
Richard Sewall. "Accuracy, Precision, and
Stability of New
Photo-
electric Color-Difference Meter". p. 1094. In: "Proceedings of the Thirty-Third...
- The
Electric State is a 2025
American science fiction action-adventure film
produced and
directed by
Anthony and Joe Russo. Its
screenplay by Christopher...
-
variations in
opacity of the
painted disk and
filters were
picked up by a
photo-
electric cell
controlling the
pitch of a
single oscillator. The
instrument produced...
- of Ruth
Snyder in the
electric chair at Sing Sing Prison, on
January 12, 1928, has been
called "the most
famous tabloid photo of the decade". Photographers...
