H2 facts for kids

"H2", "H02", or "H-2" are short names that can mean many different things! From TV channels and video games to types of gas and vehicles, "H2" is used in many areas. Let's explore some of the interesting things "H2" can refer to.

Arts and Media Fun

• Armenia 2 (H2): This is a private television company. It broadcasts shows in Armenia and Nagorno-Karabakh.
• H2 (TV channel): This TV channel used to be called History International. It was rebranded as H2.
• H2 (manga): This is a popular Japanese comic series. It's a baseball manga created by Mitsuru Adachi.
• Halo 2: This is a very famous video game. It was made for the Xbox console by Bungie.
• Halloween II (2009 film): This horror movie was sometimes called H2 for short.
• Hollywood Squares: This TV game show was informally called H² between 2002 and 2004.

Computers and Tech

• h2 HTML tag: In web design, `

  ` is a special code. It tells a web browser that the text is a main heading on a webpage.

• H2 (DBMS): This is a special computer program. It's an open-source database system that uses Java.
• DSC-H2: This was a digital camera. Sony made it in 2006 as part of their Cyber-shot H series.
• HTTP/2: This is a major update to how websites talk to your computer. It's often called "h2" in discussions.
• LGA 1155 CPU socket: This is a part inside a computer. It's where the main processor (CPU) plugs in. It's also known as Socket H2.

Roads and Travel

• Interstate H-2: This is a highway in Hawaii. You can find it on the island of Oahu.
• London Buses route H2: This is a specific bus route. It's one of the many bus routes in London, England.

Science and Math Discoveries

Biology and Health

• Histamine H2 receptor: This is a tiny part of your body's cells. It helps your body react to histamine, a chemical involved in allergies.
• Prostaglandin H2: This is a type of chemical in your body. It plays a role in many body processes, like inflammation.
• H-2 (MHC): This is a very important system in mice. It helps their bodies recognize what belongs and what doesn't, like fighting off germs. It's similar to the Human Leukocyte Antigens in people.
• Heritability (H² or h²): In biology, this term helps scientists understand how much a trait (like height) is passed down from parents to their children.

Chemistry Basics

• H₂ (Hydrogen gas): This is a very common chemical. It's the chemical formula for hydrogen gas, which is made of two hydrogen atoms.
• Hydrogen-2 (Deuterium): This is a special type of hydrogen. It's an isotope of hydrogen that has one proton, one neutron, and one electron. It's also called deuterium.

Other Science Uses

• H II region: In space, this is a special area. It's a cloud of hydrogen gas that has been ionized, meaning its atoms have lost electrons. These regions are often where new stars are born.

Vehicles of All Kinds

Air and Space Vehicles

• H-II: This is a family of rockets from Japan. They use liquid fuel to launch things into space.
  • H-IIA: A specific model of the H-II rocket.
  • H-IIB: Another specific model of the H-II rocket.
  • H-II Transfer Vehicle: This is an unmanned spacecraft. It was built by the Japan Aerospace Exploration Agency to deliver supplies to the International Space Station.
• H-2 MUPSOW: This is a special type of bomb. It's a precision-guided glide bomb made in Pakistan.
• Landgraf H-2: This was an American helicopter. It was a single-seat helicopter with two rotors, built in 1944.
• Standard H-2: This was a reconnaissance plane. The U.S. Army used it for scouting in 1916.

Trains and Rail Vehicles

• LB&SCR H2 class: This was a type of locomotive (train engine). It was used by the London, Brighton and South Coast Railway in Britain.
• H02 locomotive (Germany): This was a high-pressure steam locomotive. It was made in Germany in 1930.
• Saxon XII H2: This was another German steam locomotive. It was produced in 1922.
• PRR H2: This was a model of locomotive. It belonged to the American PRR locomotive classification.
• H2 (METRORail): This is a type of light rail vehicle. It's a Siemens S70 model used by METRORail.

Cars and Motorcycles

• Hummer H2: This is a well-known car model. It's a large SUV.
• Kawasaki H2 Mach IV: This was a powerful motorcycle from the 1970s. It had a two-stroke engine.
• Kawasaki Ninja H2: This is a modern supercharged motorcycle. It was made in the 2010s.

Ships and Submarines

• HMAS Success (H02): This was a destroyer ship. It served in the Royal Australian Navy and was finished in 1918.
• HMS Exmouth (H02): This was a destroyer ship. It served in the British Royal Navy and was commissioned in 1934.
• HMS H2: This was a submarine. It was part of the British Royal Navy's H class and was commissioned in 1915.
• USS H-2 (SS-29): This was a submarine. It served in the U.S. Navy's H-class and was commissioned in 1913.

Other Meanings of H2

• H-2A Visa: This is a type of visa for the United States. It allows people to come to the U.S. for temporary or seasonal farm work.
• H2 (business year): In business, "H2" often means the second half of the fiscal year. A fiscal year is a 12-month period used for financial reporting.
• H2 lamp: This was a type of halogen headlamp. It was used in vehicles but is no longer made.
• H2 (hurricane tie): This is a special metal connector. It's used in building to help roofs withstand strong winds, like those from hurricanes.
• Sky Airline (H2): This is an airline. Its IATA code, which is a unique two-character code for airlines, is H2.
• Area H2 (Hebron Protocol): This refers to a specific area. It's an Israeli-controlled area under an agreement called the Hebron Protocol.

See also

In Spanish: H2 para niños