THE LARGEST BATTLESHIP IN WORLD WAR II

The Yamato Class adalah Battleship Class terbesar dalam sejarah perang dunia kedua yang di Launching oleh IJN (Imperial Japanese Navy) di tahun 1941 dengan kapal pertama adalah IJN Musashi.

Pada awalnya rancangan Yamato Class masih meniru konsep dari rancangan BB (Battleship) Bismark milik Jerman dan akan di launching sebagai Class CB (Battle Cruiser), akan tetapi Jepang sudah banyak meniru Class Submarine milik Jerman dan berencana sedikit merubah konstruksi dari rancangan BB Bismark.

Di pertengahan Maret 1937 sesudah di rekonstruksi ulang rancangan BB Bismark akhirnya di putuskan untuk segera mem-build kapal tersebut yang di rencanakan akan selesai dalam 3 tahun, akan tetapi Jepang pada saat itu masih belum ada gambaran akan di beri nama apa dari Class ini. dan setelah melihat ulang bentuk, kekuatan dan megahnya kapal ini menggambarkan Negeri Jepang yang kuat dan hampir tidak terkalahkan. Akhirnya para perancang Jepang membuat kesepakatan akan di beri nama “Yamato Class” kerena "Yamato" mempunyai arti atau "nama kuno untuk Jepang".

The Desert Fox

General Erwin Rommel

The Desert Fox adalah sebutan untuk Field Marshall Erwin Rommel. Rommel dilahirkan di Heidenheim, sekitar 50 km dari kota Ulm, di negara bagian Württemberg, Jerman bagian selatan. Anak kedua seorang kepala sekolah menengah di Aalen ini pada usia 14 tahun bersama teman-teman membuat sebuah pesawat layang (glider) yang berhasil terbang, meski tidak jauh. Rommel muda ingin belajar teknik, namun ayahnya tidak menyetujuinya dan menyuruhnya bergabung dengan Resimen Infantri ke-24 Württemberg sebagai kadet pada 1910 dan segera dikirim ke Sekolah Kadet Militer di Danzig.

Pada 1911, kadet Rommel berkenalan dengan Lucie Maria Mollin, yang kemudian dinikahinya pada 1916. Pada November 1911, Rommel menyelesaikan pendidikannya dan mendapat pangkat Letnan di Wehrmacht/Angkatan Darat Jerman pada Januari 1912.

Admiral Nagumo

Vice Admiral Chuichi Nagumo

Nagumo dilahirkan di kota Yonezawa, Prefektur Yamagata, Jepang utara pada tahun 1887. Ia adalah lulusan angkatan ke-36 Akademi Angkatan Laut Kekaisaran Jepang. Prestasinya adalah urutan ke-8 terbaik dari 191 kadet. Sebagai teruna, ia ditugaskan di kapal penjelajah Soya, Nisshin, dan Niitaka. Setelah naik pangkat menjadi letnan muda pada tahun 1910, ia ditugaskan di Asama.

Setelah lulus dari pusat pendidikan torpedo dan pusat pendidikan artileri angkatan laut, ia dipromosikan sebagai pembantu letnan dan ditugaskan di kapal tempur Aki dan kemudian di Kirishima, dan Sugi. Penugasan pertama kali sebagai komandan adalah di Kisaragi pada 15 Desember 1917.

General Kuribayashi

General Tadamichi Kuribayashi

Kuribayashi dilahirkan di perfektur Nagano dari keluarga samurai dan berdarah bangsawan. Dia adalah kepala keluarga yang baik, waktu-waktunya sebisa mungkin dia habiskan bersama keluarganya. Dalam perjalanan dinasnya, dia selalu melakukan komunikasi dengan mereka walaupun secara jarak jauh. Dia pernah mengenyam pendidikan di Kanada dan bertugas dua tahun sebagai deputi atase militer Jepang di Washington DC. Selama masa ini dia sering mengadakan perjalanan di berbagai daerah Amerika Serikat. Perjalanan ini membuatnya mengetahui lebih dalam tentang negara ini dan juga mendapat respek dari orang Amerika.

German battleship Bismarck

Bismarck was the first of two Bismarck-class battleships built for the German Kriegsmarine during World War II. Named after Chancellor Otto von Bismarck, the primary force behind the German unification in 1871, the ship was laid down at the Blohm & Voss shipyard in Hamburg in July 1936 and launched two and a half years later in February 1939. Work was completed in August 1940, when she was commissioned into the German fleet. Along with her sister ship Tirpitz, Bismarck was the largest battleship ever built by Germany, and one of the largest built by any European power.

In the course of her short career, Bismarck conducted only one offensive operation, in May 1941, codenamed Rheinübung. The ship, along with the heavy cruiser Prinz Eugen, was to break into the Atlantic Ocean and raid Allied shipping from North America to Great Britain. The two ships were detected several times off Scandinavia, however, and British naval units were deployed to block their route. At the Battle of Denmark Strait, Bismarck engaged and destroyed the battlecruiser HMS Hood, the pride of theRoyal Navy, and forced the battleship HMS Prince of Wales to retreat with heavy damage, although Bismarck herself had been hit three times and suffered an oil leak from a ruptured tank.

HMS Nelson

HMS Nelson (pennant number 28) was one of two Nelson-class battleships built for the Royal Navy between the two World Wars. She was named in honour of Horatio Nelson, 1st Viscount Nelson the victor at the Battle of Trafalgar. The Nelsons were unique in British battleship construction, being the only ships to carry a main armament of 16-inch (406 mm) guns, and the only ones to carry all the main armament forward of the superstructure. These were a result of the limitations of the Washington Naval Treaty. Commissioned in 1930, Nelson served extensively in the Atlantic, Mediterranean, and Indian oceans during World War II. She was decommissioned soon after the end of the war and scrapped in 1949.

HMS King George V

HMS King George V (pennant number 41) was the lead ship of the five British King George V-class battleships of the Royal Navy. Laid down in 1937 and commissioned in 1940, King George V operated during the Second World War as part of the BritishHome and Pacific Fleets. Along with HMS Rodney, King George V severely damaged the German battleship Bismarck which led to the German vessel sinking in May 1941. On 1 May 1942 HMS Punjabi sank after a collision with King George V. King George V took part in Operation Husky (the allied landings in Sicily) and bombarded the island of Levanzo and the port of Trapani. She also escorted part of the surrendered Italian Fleet, which included the battleships Andrea Doria and Caio Duilio, to Malta. In 1945King George V took part in operations against the Japanese in the Pacific.

Following the war, King George V spent three years as the flagship of the British Home Fleet, before she was placed in reserve in 1949. The battleship was scrapped eight years later.

Japanese Cruiser Nagara

Construction of Natori Class

Nagara (長良 軽巡洋艦 Nagara keijun'yōkan^?) was the lead ship of her class of light cruiser in the Imperial Japanese Navy. She was named after the Nagara River in the Chūbu region of Japan.

Japanese cruiser Tone

IJN Tone (利根 重巡洋艦 Tone jūjun'yōkan^?) was the lead ship in the two-vessel Tone-class of heavy cruisers in the Imperial Japanese Navy. It was named after the Tone River, in the Kantō region of Japan and was completed on 20 November 1938 atMitsubishi's Nagasaki shipyards. Tone was designed for long-range scouting missions and had a large seaplane capacity. She was extensively employed during World War II usually providing scouting services to their aircraft carrier task forces. She almost always operated in this capacity in conjunction with her sister ship Chikuma.

Japanese cruiser Atago

Atago (愛宕^?) was one of four Takao-class heavy cruisers, designed to be an improvement over the previous Myōkō-class design. These ships were fast, powerful, and heavily armed. The Takao-class ships were approved under the 1927 fiscal year budget as part of the Imperial Japanese Navy's strategy of the Decisive Battle, and forming the backbone of a multipurpose long range strike force. Atago was built by the Kure Naval shipyards near Hiroshima, and—like all heavy cruisers—was named after a mountain: in this case Mount Atago, located outside of Kyoto.

Japanese aircraft carrier Shōkaku

Shōkaku (Japanese: 翔鶴 "Flying Crane") was an aircraft carrier of the Imperial Japanese Navy, the lead ship of her class. Along with her sister ship Zuikaku, she took part in several key naval battles during the Pacific War, including the attack on Pearl Harbor, the Battle of the Coral Sea and the Battle of the Santa Cruz Islands before being torpedoed and sunk by an American submarine at the Battle of the Philippine Sea.

Japanese aircraft carrier Hiryū

Hiryū (飛龍^?, "Flying Dragon") was a modified Sōryū-class aircraft carrier of the Imperial Japanese Navy. She was one of the carriers that began the Pacific War with the attack on Pearl Harbor. After being heavily damaged by air attacks 4 June 1942 at the Battle of Midway, Hiryu sank on 5 June 1942.

Japanese Aircraft Carrier Akagi

Akagi (Japanese: 赤城 "Red Castle") was an aircraft carrier of the Imperial Japanese Navy (IJN), named after Mount Akagi in present-day Gunma Prefecture. Though she was laid down as an Amagi-class battlecruiser, Akagi was converted to an aircraft carrier while still under construction to comply with the terms of the Washington Naval Treaty. Following Japan's renunciation of the treaty in late 1934, the ship was rebuilt from 1935 to 1938 with her original three flight decks 

Japanese battleship Ise

Originally planned to be the third Fusō-class battleship, experience gained in the construction of the Fusō-class revealed a number of design issues, including weak armament and protection, which forced a redesign and new classification.

Ise was laid down at the Kawasaki Heavy Industries shipyard in Kobe on 5 May 1915, launched on 12 November 1916, and completed on 15 December 1917 and assigned to the Kure Naval District.

Japanese Battleship Fusō-class

The design of the Fusō-class battleships was shaped both by the international naval arms race and a desire among Japanese naval planners to maintain a fleet of capital ships powerful enough to defeat the United States Navy in a "decisive battle" in Japanese territorial waters.

The Imperial Japanese Navy's fleet of battleships had proven highly successful in 1905

APLIKASI HUKUM PASCAL DALAM KEHIDUPAN SEHARI-HARI

Hukum pascal dikemukakan oleh Blaise Pascal (1623-1662), fisikawan asal prancis ini menyatakan bahwa :

“Tekanan yang diberikan pada zat cair dalam ruang tertutup

akan diteruskan ke segala arah dengan sama besar”.

        ₪      Prinsip Kerja Dongkrak Hidraulik

Prinsip kerja dongkrak hidraulik adalah dengan memanfaatkan hukum Pascal. Dongkrak hidraulik terdiri d`ri dua tabung yang berhubungan yang memiliki diameter yang berbeda ukurannya. Masing- masig ditutup dan diisi air. Mobil diletakkan di atas tutup tabung yang berdiameter besar. Jika kita memberikan gaya yang kecil pada tabung yang berdiameter kecil, tekanan akan disebarkan secara merata ke segala arah termasuk ke tabung besar tempat diletakkan mobil (Anonim,2009a). Jika gaya F₁ diberikan pada penghisap yang kecil,