What is the difference between ditch and trench?
Trench – a narrow long excavation with timbered or bare sides, vertical or battered. Ditch – an excavation made by humans that is long and narrow, such as a channel or trench cut through earth or rock to carry water for drainage or irrigation.
What is the purpose of a trench?
In the civil engineering field of construction or maintenance of infrastructure, trenches play a major role. They are used to place underground easily damaged and obstructive infrastructure or utilities (such as gas mains, water mains or telephone lines). A similar use for higher bulk would be in pipeline transport.
What are the 4 types of trenches?
- Front-line Trench. This type of trench was also known as the firing-and-attack trench.
- Support Trench. This trench was several hundred yards behind the front-line trench.
- Reserve Trench. The reserve trench was several hundred yards behind the support trench.
- Communication Trench.
Does no man’s land still exist?
Overview. No Man’s Land is a term still used today to colloquially indicate ‘anywhere from derelict inner-city areas to spaces between borders, and even tax havens’. The term “No Man’s Land” did not come into existence during the First World War.
Were there toilets in the trenches?
The command trenches had officer command posts in them. These latrines were trench toilets. They were usually pits dug into the ground between 1.2 metres and 1.5 metres deep. Two people who were called sanitary personnel had the job of keeping the latrines in good condition for each company.
Where is no man’s land in tennis?
Where is no man’s land on the tennis court? That is the area in front of the baseline (trench) and behind the service line (trench). There are several reasons you don’t want to be there: Any ball hit at your feet or behind you will be struck falling backwards and off-balance.
Who can call a let in tennis?
Service let calls. Any player may call a service let. The call shall be made before the return of serve goes out of play or is hit by the server or the server’s partner. If the serve is an apparent or near ace, any let shall be called promptly. 28.
What’s considered out in tennis?
During play, a ball that hits the net and falls in play is in play, and if it hits and falls out it is considered out. Players/teams change sides at the completion of odd-numbered games. A player may not hit the net with their racket.
What does rally mean in tennis?
A rally in tennis is a collective name given to a sequence of back and forth shots between players, within a point. A rally starts with the serve and the return of the serve, followed by continuous return shots until a point is scored which ends the rally.
Why is it called 15 Love in tennis?
“Love” means zero. In tennis, the server’s score is given first, so “love-fifteen” means the server has no points, the opponent has fifteen. The score in a tennis game progresses from love to fifteen to thirty to forty to game.
What is the longest rally in tennis history?
According to tennislovers.com The longest rally in tournament play was one of 643 times over the net between Vicky Nelson and Jean Hepner at Richmond, VA in October 1984. The 6 hr 22 min match was won by Nelson 6-4, 7-6. It concluded with a 1 hr 47 min tiebreak, 13-11, for which one point took 29 minutes.
Is it a volley or a rally?
Volleyball Rally A rally is the time between the serve and the end of the play. In some volleyball terminology a rally is synonymous with volley. Volley A volley is keeping the ball in play and returning it to your opponent without committing any playing faults.
What is it called when you hit the ball back and forth in pickleball?
Backswing: the motion of swinging the pickleball paddle back from the ready position before following thru with foreward swing. Backhand: Shot where player strikes the ball on the opposite side from their dominant forehand.
What is a match point in volleyball?
A Set Point is also known as Game Point, meaning one team needs one more point to win that game to 21. The Match Point means a team has already won one set and is one point away from winning the match and ending the competition. Float Serve: Volleyball starts with a serve. Always.
How many hits do you get in volleyball?
3 hits
What is the maximum hits per side?
A maximum of 3 hits per side is allowed. A player may not hit the ball two times consecutively. The ball may be played off the net on a volley or serve.
Can you hit a volleyball 4 times?
If a team contacts the volleyball more than 3 times without returning the ball to the opposing team, a “4 hits” fault occurs. If opposing opponents touch the volleyball simultaneously over the net and the ball remains in play, the team receiving the ball is entitled to another 3 hits.
Can you punch a ball in volleyball?
Recently Updated Rules Contacting the ball with any part of the body below the waist used to be illegal. When the ball hits any part of your body, including the leg or the foot, it constitutes a legal hit.