John Deere S100 42 in. 17.5 HP Gas Hydrostatic Riding Lawn Tractor

Seventeen or 17 may refer to:

• 17 (number), the natural number following 16 and preceding 18
• The years 17 BC, AD 17, 1917, or 2017

5 (five) is a number, numeral and digit. It is the natural number, and cardinal number, following 4 and preceding 6, and is a prime number. It has garnered attention throughout history in part because distal extremities in humans typically contain five digits.

Five is the third-smallest prime number, and the second super-prime, since its prime index is prime. Notably, 5 is equal to the sum of the only consecutive primes 2 + 3 and it is the only number that is part of more than one pair of twin primes, (3, 5) and (5, 7), also making it the first balanced prime with equal-sized prime gaps above and below it (of 2). 5 is the first safe prime where ${\displaystyle (p-1)/2}$ for a prime ${\displaystyle p}$ is also prime (2), and the first good prime, since it is the first prime number whose square (25) is greater than the product of any two primes at the same number of positions before and after it in the sequence of primes (i.e., 3 × 7 = 21 and 11 × 2 = 22 are less than 25). 11, the fifth prime number, is the next good prime, that also forms the first pair of sexy primes with 5. More significantly, the fifth Heegner number that forms an imaginary quadratic field with unique factorization is also 11 (and the first repunit prime in decimal, a base in-which five is also the first non-trivial 1-automorphic number).

Five is also the second Fermat prime, and the third Mersenne prime exponent, as well as the fourth or fifth Fibonacci number. It is also an Eisenstein prime (like 11) with no imaginary part and real part of the form ${\displaystyle 3p-1}$. It is the first congruent number, as well as the length of the hypotenuse of the smallest integer-sided right triangle, making part of the smallest Pythagorean triple (3, 4, 5). The regular five-sided pentagon is the first regular polygon that does not tile the plane with copies of itself, and it is the largest face that a regular three-dimensional regular Platonic solid can have, as represented in the regular dodecahedron. In general, a conic curve will require five points in the same way that two points are needed to determine a line.

Deere is an English family name. It is variant spelling of Dear. This name as two possible origins, the first is derived from the Middle English (1200-1500) personal name "Dere," from the Old English pre 7th century "Deora," meaning beloved and used as a byname. Also an Irish name derived from Dwyer.

• Alan Christopher Deere (1917-1995), New Zealand air force personnel
• Jack Deere, American pastor and theologian
• Jason Deere (born 1968), American singer-songwriter
• Jim Deere (born 1967), former American football player and coach
• John Deere (inventor) (1804-1866), American blacksmith and inventor

Gas is one of the four fundamental states of matter. The others are solid, liquid, and plasma. A pure gas may be made up of individual atoms (e.g. a noble gas like neon), elemental molecules made from one type of atom (e.g. oxygen), or compound molecules made from a variety of atoms (e.g. carbon dioxide). A gas mixture, such as air, contains a variety of pure gases. What distinguishes gases from liquids and solids is the vast separation of the individual gas particles. This separation usually makes a colorless gas invisible to the human observer.

The gaseous state of matter occurs between the liquid and plasma states, the latter of which provides the upper-temperature boundary for gases. Bounding the lower end of the temperature scale lie degenerative quantum gases which are gaining increasing attention. High-density atomic gases super-cooled to very low temperatures are classified by their statistical behavior as either Bose gases or Fermi gases. For a comprehensive listing of these exotic states of matter, see list of states of matter.

John is a common English name and surname:

• John (given name)
• John (surname)

John may also refer to:

A lawn () is an area of soil-covered land planted with grasses and other durable plants such as clover which are maintained at a short height with a lawn mower (or sometimes grazing animals) and used for aesthetic and recreational purposes—it is also commonly referred to as part of a garden. Lawns are usually composed only of grass species, subject to weed and pest control, maintained in a green color (e.g., by watering), and are regularly mowed to ensure an acceptable length. Lawns are used around houses, apartments, commercial buildings and offices. Many city parks also have large lawn areas. In recreational contexts, the specialised names turf, pitch, field or green may be used, depending on the sport and the continent.

The term "lawn", referring to a managed grass space, dates to at least the 16th century. With suburban expansion, the lawn has become culturally ingrained in some areas of the world as part of the desired household aesthetic. However, awareness of the negative environmental impact of this ideal is growing. In some jurisdictions where there are water shortages, local government authorities are encouraging alternatives to lawns to reduce water use. Researchers in the United States have noted that suburban lawns are "biological deserts" that are contributing to a "continental-scale ecological homogenization." Lawn maintenance practices also cause biodiversity loss in surrounding areas.

S100 or S-100 may refer to:

• S-100 bus, an early computer bus
• S-100, an International Hydrographic Organization standard
• S100 protein, low-molecular-weight proteins in vertebrates
• The road number used in the Netherlands for inner-city ring roads
• AVE Class 100, or S100, a high speed train
• Canon PowerShot S100, a camera
• Colyaer Freedom S100, a Spanish amphibious ultralight aircraft
• Colyaer Gannet S100, a Spanish ultralight flying boat
• Colyaer Martin3 S100 is a Spanish ultralight aircraft
• A class of WWII German E-Boat.
• Guild S-100, an electric guitar
• Lenovo IdeaPad S100, a netbook computer
• Qtek S100, a mobile phone
• Schiebel Camcopter S-100, an unmanned aerial vehicle
• Škoda 100, a 1970s car
• USATC S100 Class, a 1942 steam locomotive class

A tractor is an engineering vehicle specifically designed to deliver a high tractive effort (or torque) at slow speeds, for the purposes of hauling a trailer or machinery such as that used in agriculture, mining or construction. Most commonly, the term is used to describe a farm vehicle that provides the power and traction to mechanize agricultural tasks, especially (and originally) tillage, and now many more. Agricultural implements may be towed behind or mounted on the tractor, and the tractor may also provide a source of power if the implement is mechanised.