Waves move in sets and the ‘seventh wave’ – the bigger wave in the middle of a set – often comes further up the beach. That it always happens on the seventh wave is a myth, but sometimes it does!

Waves at the Shoreline: As a wave approaches the shore it slows down from drag on the bottom when water depth is less than half the wavelength (L/2). The waves get closer together and taller. Orbital motions of water molecules becomes increasingly elliptical, especially on the bottom.

Waves carry sand up the shore parallel to their direction of travel. The waves wash back into the ocean perpendicular to the shoreline. This causes sand to move in a zig-zag pattern parallel to the shoreline.

A tidal wave is a shallow water wave caused by the gravitational interactions between the Sun, Moon, and Earth. A tidal wave is a regularly reoccurring shallow water wave caused by effects of the gravitational interactions between the Sun, Moon, and Earth on the ocean.

When waves meet shallow water they slow down. They always bend towards the shallow side. This is why they bend towards the shore. It is a process called refraction.

Sea water becomes denser the deeper it is, and we can think of the ocean as being made up of an infinite number of tiny layers each having a different density. Between these infinite number of density layers are an infinite number of interfaces where internal waves occur.

2011 Tōhoku earthquake and tsunami

Most expensive natural disasters in the United States as of June 2021 (in billion U.S. dollars)

1,833

Great Flood of 1993, $38.6 Billion in Damage The National Weather Service considers it the “largest and most significant flood event ever to occur in the United States.” A huge swath of the Midwest was affected, and much of the river economy was shut down.

The Great Galveston Hurricane of 1900

“About 6,000 people died each day during October 1918 from influenza, on average.” Hacker said. If we had better data from that time, it might have been possible to say that the Spanish flu was responsible for the deadliest day in U.S. history because some days likely eclipsed that 6,000 figure.

Dr. Harold Shipman

Deadliest Battles In Human History

• Operation Barbarossa, 1941 (1.4 million casualties)
• Taking of Berlin, 1945 (1.3 million casualties)
• Ichi-Go, 1944 (1.3 million casualties)
• Stalingrad, 1942-1943 (1.25 million casualties)
• The Somme, 1916 (1.12 million casualties)
• Siege of Leningrad, 1941-1944 (1.12 million casualties)

World War II

Currently, Amardeep Sada holds the title of the youngest of the youngest serial killers in the world. His first murder happened when he was only 8 years old. If you’re wondering how an 8-year-old could kill multiple people, you’ll be more shocked to find out why he could.

O+ blood type has the highest blood group frequency for stealing, fighting, robbery and rape. Blood group A+ followed, having the highest frequency for inmates charged for fraud and murder.

Leonard Matters suggested Jack the Ripper was seeking revenge on the prostitutes who he believed had murdered his son. His theory involves a character called Dr Stanley, who was an early cancer specialist at a London hospital but also had a private practice in Portman Square.

United States