สิงหาคม 2551

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Sunday, August 31, 2008

คุณติ๋ม



เมื่อวันอาทิตย์ 21 กันยายน 2551
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7 มิย. 2551





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categories depending on the purpose and desired distance:

An approach shot.

An approach shot.

* A drive is a long-distance shot played from the tee or fairway, intended to move the ball a great distance down the fairway towards the green.

* An approach shot is made with the intention of placing the ball on the green. A drive may place the ball on the green as well, but the term "approach" typically refers to a second or subsequent shot with a shorter-range iron club chosen for the distance required.

* A putt is a shot designed to roll the ball along the ground. It is normally made on the putting green using a putter, though other clubs may be used to achieve the same effect in different situations. A lag is a long putt designed less to try to place the ball in the cup than simply to move the ball a long distance across the putting green for an easier short putt into the cup.

* A chip shot is a very short lofted shot, generally made with an abbreviated swing motion. Chip shots are used as very short approach shots (generally within 35 yards/32 m), as a "lay-up" shot to reposition the ball on the fairway, or to get the ball out of a hazard such as a sand trap. A bump and run is a variation of a chip shot, which involves running the ball along the ground with a medium- or high-lofted club using a putting motion.

* Punch or knock-down shots are very low-loft shots of varying distance. They are used to avoid hitting the ball into the canopy of trees or other overhead obstructions, or when hitting into the wind which causes the ball to climb higher than normal.

* Lay-up shots are made from the fairway after a drive or from the rough, but intended to travel a shorter distance than might normally be expected and/or with a higher degree of accuracy, due to intervening circumstances. Most often, a lay-up shot is made to avoid hitting the ball into a hazard placed in the fairway, or to position the ball in a more favorable position on the fairway for the next shot. They are "safe" shots; the player is choosing not to try to make a very long or oddly-placed shot correctly, therefore avoiding the risk that they will make it incorrectly and incur penalty strokes, at the cost of requiring one or more additional strokes to place the ball on the green.

* Flop Shot is when a player uses a very open club like a lob wedge to get the ball high very quickly over an obstacle or to get the ball to stop quickly when it hits the ground.

* A draw is when a player shapes a shot from right to left in a curving motion (or left to right for a left-handed player). This occurs when the clubface is closed relative to the swingpath. A shot which draws too much, or unintentionally and thus uncontrolled, is called a "hook" or a "pull".

* A fade is when a player shapes a shot from left to right in a curving motion (or right to left for a left-handed player). This occurs when the clubface is open relative to the swingpath. A shot which fades too much, or unintentionally and thus uncontrolled, is called a "slice" or a "push".

* A hook might be needed to go around a tree or obstacle. It has a strong right-to-left ballflight and is a larger version of the draw.

* A slice also might be needed to go around a tree or obstacle. It has a strong left-to-right ballflight and is a larger version of the fade

* A shank occurs when the club strikes the ball close to the joint between the shaft of the club and the club head, called the hosel, and thus flies at a sharp angle to the right of the intended direction (or to the left, for a left-handed player).

* A topped or bladed shot occurs when the forward edge of the club head strikes the ball too high, ie at the centre of the ball or "over the top" instead of underneath as intended, and the ball thus flies very low or rolls along the ground.

* A duffed shot occurs when the club head strikes the ground behind the ball, instead of striking the ball cleanly, thus slowing the club head velocity as it propels the ball and/or altering the alignment of the club head to the ball, with various consequences for the quality of the shot. This is also known as "hitting fat".

* A chunked or turfed shot occurs when the club head strikes the ground behind the ball at a steep angle, causing the club to nearly stop as it pulls up a very large divot, or "chunk" of turf, causing the ball to come up extremely short of the desired target.

[edit] Swinging the golf club

Animation of the full golf swing.

Animation of the full golf swing.

Putts and short chips are ideally played without much movement of the body, but most other golf shots are played using variants of the full golf swing. The full golf swing itself is used in tee and fairway shots.

A full swing is a complex rotation of the body aimed at accelerating the club head to a great speed. For a right-handed golfer, it consists of a backswing to the right, a downswing to the left (during which the ball is hit), and a follow through.

The full golf swing is a complex motion that is often difficult to learn. It is common for beginners to spend several months practicing the very basics before playing their first ball on a course. Generally, even once a golfer has attained professional status, a coach is still necessary in order for the player to maintain good fundamentals.

Relatively few golfers play left-handed (i.e., swing back to the left and forward to the right). The percentage of golfers in the U.S. who play left-handed is estimated to be anywhere from 4 percent to 7 percent.[25] Even some players who are strongly left-handed in their daily lives prefer the right-handed golf swing. In the past, this may have been due to the difficulty of finding left-handed golf clubs. Today, more manufacturers provide left-handed versions of their club lines, and the clubs are more readily purchased from mail-order and Internet catalogues, as well as golf stores. A golfer who plays right-handed, but holds the club left-hand-below-right is said to be "cack-handed" or "cross-handed".

A golf ball acquires spin when it is hit. Backspin is imparted for almost every shot due to the golf club's loft (i.e., angle between the clubface and a vertical plane). A spinning ball deforms the flow of air around it[26] similar to an airplane wing; a back-spinning ball therefore experiences an upward force which makes it fly higher and longer than a ball without spin. However, too much backspin can negatively impact distance travelled; the increased lift wastes the ball's momentum in gaining altitude rather than in traveling along its flight path. The amount of backspin also influences the behavior of a ball when it impacts the ground. A ball with little backspin will usually roll out for a few metres/yards while a ball with more backspin may not roll at all, or even roll backwards. Sidespin occurs when the clubface is not aligned perpendicularly to the plane of swing. Sidespin makes the ball curve left or right, and can be used intentionally or occur unintentionally. For a right-handed player, a subtle curve to the left is called a draw. A severe curve to the left and downward is a hook. A subtle curve to the right is a fade, while a severe curve away and upward is a slice. Draws and fades are caused by slight misalignments between the clubface and swing plane because of a slightly "open" or "closed" clubface at contact; a skilled player can control the amount of draw or fade to make the ball curve along the path of the fairway. Slices and hooks however indicate a severe misalignment, mistiming or other flaw in the player's swing, such as a swing not parallel to the desired line of travel, the club contacting the ball early or late in the swing, etc. They are generally undesirable as they reduce carry distance, are difficult to predict and therefore difficult to adjust for, and cause the ball to veer sharply away from the fairway and into hazards, trees and/or out-of-bounds.

[edit] Equipment

Main article: Golf equipment

The golfer uses equipment such as golf clubs, golf balls, golf shoes, and golf bags.

[edit] Professional golf

The majority of professional golfers work as club or teaching professionals (pros), and only compete in local competitions. A small elite of professional golfers are "tournament pros" who compete full time on international "tours". Many club and teaching professionals working in the golf industry start as caddies or a general interest in the game, finding employment at golf courses and eventually moving on to certifications in their chosen profession. These programs include independent institutions and universities, and those that eventually lead to a Class A golf professional certification.

[edit] Golf tours

Tiger Woods, the leading professional golfer in the world.

Tiger Woods, the leading professional golfer in the world.[27]

Main article: Professional golf tours

There are at least twenty professional golf tours, each run by a PGA or an independent tour organization, which is responsible for arranging events, finding sponsors, and regulating the tour. Typically a tour has "members" who are entitled to compete in most of its events, and also invites non-members to compete in some of them. Gaining membership of an elite tour is highly competitive, and most professional golfers never achieve it.

The most widely known tour is the PGA Tour, which attracts the best golfers from all the other men's tours. This is due mostly to the fact that most PGA Tour events have a first prize of at least USD 800,000. The European Tour, which attracts a substantial number of top golfers from outside North America, ranks second to the PGA Tour in worldwide prestige. Some top professionals from outside North America play enough tournaments to maintain membership on both the PGA Tour and European Tour.

The other leading men's tours include the Japan Golf Tour, the Asian Tour (Asia outside Japan), the PGA Tour of Australasia, and the Sunshine Tour (for Southern Africa, primarily South Africa). These four tours, along with the PGA and European Tours, are full members of the trade body of the world's main tours, the International Federation of PGA Tours. Two other tours, the Canadian Tour and the Tour de las Américas (Latin America), are associate members of the Federation. All of these tours, except for the Tour de las Américas, offer points in the Official World Golf Rankings to golfers who make the cut in their events.

Golf is unique in having lucrative competition for older players. There are several senior tours for men 50 and older, the best known of which is the U.S.-based Champions Tour.

There are six principal tours for women, each based in a different country or continent. The most prestigious of these is the United States based LPGA Tour.

All of the leading professional tours for under-50 players have an official developmental tour, in which the leading players at the end of the season will earn a tour card on the main tour for the following season. Examples include the Nationwide Tour, which feeds to the PGA Tour, and the Challenge Tour, which is the developmental tour of the European Tour. The Nationwide and Challenge Tours also offer Official World Golf Rankings points.

[edit] Men's major championships

Main article: Men's major golf championships

The major championships are the four most prestigious men's tournaments of the year. In chronological order they are: The Masters, the U.S. Open, The Open Championship (referred to in North America as the British Open) and the PGA Championship.[28]

The fields for these events include the top several dozen golfers from all over the world. The Masters has been played at Augusta National Golf Club in Augusta, Georgia since its inception in 1934. It is the only major championship that is played at the same course each year.[29] The U.S. Open and PGA Championship are played at courses around the United States, while The Open Championship is played at courses in the UK.[30][31][32]

The number of major championships a player accumulates in his career has an impact on his stature in the sport. Jack Nicklaus is considered to be one of the greatest golfers of all time, largely because he has won a record 18 professional majors, or 20 majors in total if his two U.S. Amateurs are included. Tiger Woods, who may be the only golfer in the foreseeable future likely to challenge Nicklaus's record, has won 15 professional majors (17 total if his three U.S. Amateurs are included), all before the age of 33. (To put this total in perspective, Nicklaus had won 11 professional majors and two U.S. Amateurs by his 33rd birthday, and did not win his 15th professional major until he was 35.) Woods also came closest to winning all four current majors in one season (known as a Grand Slam completed first by Bobby Jones) when he won them consecutively across two seasons: the 2000 U.S. Open, Open Championship, and PGA Championship; and the 2001 Masters. This feat has been frequently called the Tiger Slam.

Prior to the advent of the PGA Championship and The Masters, the four Majors were the U.S. Open, the U.S. Amateur, the Open Championship, and the British Amateur. These are the four that Bobby Jones won in 1930 to become the only player ever to have earned a Grand Slam.

[edit] Women's major championships

Main article: Women's major golf championships

Women's golf does not have a globally agreed set of majors. The list of majors recognised by the dominant women's tour, the LPGA Tour in the U.S., has changed several times over the years, with the last change in 2001. Like the PGA Tour, the (U.S.) LPGA[33] has four majors: the Kraft Nabisco Championship, the LPGA Championship, the U.S. Women's Open and the Women's British Open. Only the last of these is also recognised by the Ladies European Tour. The other event that it recognises as a major is the Evian Masters, which is not considered a major by the LPGA (but is co-sanctioned as a regular LPGA event). However, the significance of this is limited, as the LPGA is far more dominant in women's golf than the PGA Tour is in mainstream men's golf. For example, the BBC has been known to use the U.S. definition of "women's majors" without qualifying it. Also, the Ladies' Golf Union, the governing body for women's golf in the UK and Republic of Ireland, states on its official website that the Women's British Open is "the only Women’s Major to be played outside the U.S."[34] For many years, the Ladies European Tour tacitly acknowledged the dominance of the LPGA Tour by not scheduling any of its own events to conflict with the three LPGA majors played in the U.S., but that changed in 2008, with the LET scheduling an event opposite the LPGA Championship. The second-richest women's tour, the LPGA of Japan Tour, does not recognise any of the U.S. LPGA or European majors as it has its own set of three majors. However, these events attract little notice outside Japan.

[edit] Senior major championships

Main article: Senior major golf championships

Like women's golf, senior (50-and-over) men's golf does not have a globally agreed set of majors. The list of senior majors on the U.S.-based Champions Tour has changed over the years, but always by expansion; unlike the situation with the LPGA, no senior major has lost its status. The Champions Tour now recognises five majors: the Senior PGA Championship, the U.S. Senior Open, the Senior British Open, The Tradition and the Senior Players Championship.

Of the five events, the Senior PGA is by far the oldest, having been founded in 1937. The other events all date from the 1980s, when senior golf became a commercial success as the first golf stars of the television era, such as Arnold Palmer and Gary Player, reached the relevant age. The Senior British Open was not recognised as a major by the Champions Tour until 2003. The European Seniors Tour recognises only the Senior PGA and the two Senior Opens as majors. However, the Champions Tour is arguably more dominant in global senior golf than the U.S. LPGA is in global women's golf.

[edit] Environmental impact

Environmental concerns over the use of land for golf courses have grown over the past fifty years. Specific concerns include the amount of water and chemical pesticides and fertilizers used for maintenance, as well as the destruction of wetlands and other environmentally important areas during construction. The UN estimates that golf courses use 2.5 billion gallons of clean water daily, enough to provide fresh drinking water for 4.7 billion people. Diazinon is a toxic chemical used on golf courses. In 1988, the US Environmental Protection Agency prohibited the use of Diazinon on golf courses and sod farms because of decimation of bird flocks.

These, along with health and cost concerns, have led to research into more environmentally sound practices and turf grasses. The golf course superintendent is often trained in the uses of these practices and grasses. This has led to some reduction in the amount of chemicals and water used on courses. The turf on golf courses is an excellent filter for water and has been used in communities to cleanse grey water, such as incorporation of bioswales. People continue to oppose golf courses for environmental and human survival reasons, as they impede corridors for migrating animals and sanctuaries for birds and other wildlife. In fact, the effective non-native monoculture of golf courses systematically destroys biodiversity.[35]

A result of modern equipment is that today's players can hit the ball much further than previously. As a result, out of a concern for safety, golf course architects have had to lengthen and widen golf courses. This has led to a ten percent increase in the amount of area that is required to build those. At the same time, water restrictions placed by communities have forced courses to limit the amount of maintained turf grass. While most modern 18-hole golf courses occupy as much as 60 square hectometers (150 acres) of land, the average course has 30 hm² (75 acres) of maintained turf. (Sources include the National Golf Foundation and the Golf Course Superintendents Association of America [GCSAA].)

Deer on a golf course.

Deer on a golf course.

Golf courses can be built on sandy areas along coasts, abandoned farms, strip mines and quarries, deserts and forests. Many Western countries have instituted environmental restrictions on where and how courses can be built.[36][37]

In some parts of the world, attempts to build courses and resorts have led to protests along with vandalism and violence by both sides. Golf has symbolic importance as it is a sport normally associated with the wealthier Westernized population, and the culture of colonization and globalisation of non-native land ethics. Resisting golf tourism and golf's expansion has become an objective of some land-reform movements, especially in the Philippines and Indonesia.

In the Bahamas, opposition to golf developments has become a national issue. Residents of Great Guana Cay and Bimini, for example, are engaged in legal and political opposition to golf developments on their islands, for fear the golf courses will destroy the nutrient-poor balance on which their coral reef and mangrove systems depend.

In Saudi Arabia, golf courses have been constructed on nothing more than oil-covered sand. However, in some cities such as Dhahran, modern, grass golf courses have been built. In Coober Pedy, Australia, there is a golf course that consists of nine holes dug into mounds of sand, diesel and oil, with no grass anywhere on the course. Players carry a small piece of astroturf from which they tee the ball. In New Zealand it is not uncommon for rural courses to have greens fenced off and sheep graze the fairways. At the 125-year-old Royal Colombo Golf Club in Sri Lanka steam trains, from the Kelani Valley railway, run through the course at the 6th hole.

Extreme golf is played on environmentally sustainable alternatives to traditional courses. A cross between hiking and golf, the course layout exposes players to a wide range of natural obstacles and challenging terrains.

Based on the growing popularity of the U.X. Open Alternative Golf Tournament the extreme golf course features un-mowed meadows and forest instead of fairways, with "goals" scored on temporary greens (a circle 6 metres (20 ft) in diameter).[38]

[edit] Events



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