• Rumaisa Rahman, born prematurely in Chicago on September 19, 2004, was 8 inches (20 cm) long and weighed 8½ oz. (244 g) at birth?

Facts on topics related to Centimeter

Moment magnitude scale

• 6.9 M_w Chile earthquake of March 2010 took place shortly before president Sebastián Piñera was sworn in?
• in 1976, an 8.0 M_w earthquake in Moro Gulf in the Celebes Sea in the Philippines killed at least 5,000 people and triggered tsunamis that reached as far as Japan?
• the 7.9 M_w Denali Fault earthquake on November 3, 2002 was the strongest shock ever recorded in the interior of Alaska?
• the magnitude-8.5 1922 Vallenar earthquake in Chile caused a series of tsunamis that reached as far away as Japan and Australia?

Radar

• Howard A. Chinn, while working as chief audio engineer at CBS in 1943, wrote a classified report about enemy radar?
• modern radars use frequency agility to reduce the effects of intentional interference, or jamming?
• on December 26 and 27, 1969 during the War of Attrition the elite special forces unit Sayeret Matkal kidnapped a whole Egyptian P-12 radar system in a mission called Operation Rooster 53?
• the Israeli ground-based missile-defense radar EL/M-2080 Green Pine (diagram pictured) operates in search, detection, tracking, and missile guidance modes simultaneously?
• the Kirov-class cruiser Molotov (pictured), named after politician and diplomat Vyacheslav Molotov, was the first Soviet ship to carry a radar?
• the radar at Benton Air Force Station was once jammed by "the lady of the house" watching a soap opera?
• the speed of sound and temperature in the atmosphere can be remotely sensed by bouncing a radar signal off of sound waves in a RASS system?
• the U.S. and Canadian ships escorting the British merchant ships of Convoy ON-67 in 1942 had one working radar between them, lacked sufficient binoculars and had never operated together before?
• the Mid-Canada Line was a line of radar sites across Canada designed to be an nuclear attack early-warning system?
• the present Cape Rachado Lighthouse, erected in 1863 in Malacca, Malaysia, includes an additional concrete tower that was completed in 1990 to house a MEASAT radar?

Mesolithic

• Alby, Sweden (pictured) is a mesolithic settlement, the earliest known of any humans on the island of Öland?