Because it was invented by a man named Jack Bowlington from Jacksontown, in Jacksonville CA.
The above answer is wrong & the person who answered is trying to be a 'comedian' & failing.
There are a couple of theories why the 'Jack' is so called.
1.It comes from the Latin 'jactus' meaning 'to throw or cast'.
2.'jack' in some context means 'smaller version' as in 'Jack-rabbit' IE the smaller version of a rabbit.
'The 'jack bowl' was mentioned in an article by R Pierce in 1697 where he stated..' He cdid not have the strength to throw the Jack-Bowl the length of the green'. Over time the 'Jack-Bowl' was shortened to plain 'Jack'.
There are other theories but these two seem to make the most sense.
yes, it is the white small ball. Without it, you couldnt play.
take a jack and jack it up
The only time, that i can think of, when you spray a bowl in a game of lawn bowls, is when the wood (black bowl) has touched the Jack (white ball) They spray the black bowl, with a white spray chalk, so that you can see that it hit the Jack. If a bowl has been sprayed with the spray chalk, it means that it is a LIVE BOWL and, even if it is hit out of the rink, it still counts.
White or it is sometimes yellow in big competitions.
Lawn Bowling
Skipper of lawn bowls
floor or bumper jack
Lawn Bowling or "Bowls" in England.
jack
You can lift a riding lawn mower with a car or floor jack in order to change the blades. Simply place the jack under the frame of the lawn mower but away from the blades to lift it. Then, block the mower up using bricks or concrete blocks.
The bias on lawn bowls is the side of the lawn bowl that is heavier. Different types of bowls will have stronger biases and depending on where the weight is in the bowl it might have a gradual lean or a strong hook turn.
no