In message , dave
writes
How do you get the two halfs of a ping pong ball back together again after
prising them apart? This is a serious question - my kids want to know!

I think the best answer is that you don't. Even if you tried, you'd end
up with a bit of a naff, unbalanced sphere with no bounce

Aren't they made of some form of cellulose? - they burn well, that will
entertain them for a few minutes

You could always give them a golf ball to unravel, that would last a few
minutes more

--
geoff

Rivets, obviously.

Iron snap-heads for preference

wrote:

Rivets, obviously.

Iron snap-heads for preference

TiG welding also works

"dave" wrote in message
...
How do you get the two halfs of a ping pong ball back together again after
prising them apart? This is a serious question - my kids want to know!

Fill with concrete then marry both halves together..

On Mon, 08 Aug 2005 23:47:21 GMT, dave wrote:

How do you get the two halfs of a ping pong ball back together again after
prising them apart? This is a serious question - my kids want to know!

Use as lampshades for very bright LEDs?

raden wrote:

How do you get the two halfs of a ping pong ball back together again
after
prising them apart? This is a serious question - my kids want to know!

I think the best answer is that you don't. Even if you tried, you'd end
up with a bit of a naff, unbalanced sphere with no bounce

The balls are moulded monolithically, and repair is not really feasible.

Aren't they made of some form of cellulose? - they burn well, that will
entertain them for a few minutes

Celluloid. This is based on cellulose nitrate, which as you say burns
like blinko. Very old film stock was made of celluloid and if it jammed
in the projector was prone to ignite from the heat of the lamp. A number
of accidents in cinemas occurred, probably the most heart-breaking being
the incident in Paisley.

http://www.glencinema.org.uk/

Nitrate Stock film is also unstable and slowly turns to dust, an ongoing
problem for the National Film Archive. It can also combust
spontaneously. They are transferring what is left onto acetate stock
which is non-flammable but also temporally unstable. The degradation is
auto-catalytic, the acetic acid released hastening the degradation.

You could always give them a golf ball to unravel, that would last a few
minutes more

Beware! The bladder at the core contains fluid at high pressure and
puncturing this can result in injury. Not being a spoilsport, but I
remember a rained-off Wednesday (sports day) afternoon when my class,
out of boredom, proceeded to dismantle a golf ball. Someone stuck a
compass into the core and the goo inside easily made the ceiling.
Shooting yourself in the eyes with that will at best be very unpleasant.

To provide hours of fun, buy a cat and a supply of ping-pong balls. An
alternative way to entertain both the children and the cat is a laser
pointer, but be sure the children do not point it into the cat's eyes
but merely give it something to chase. I don't think this is animal
cruelty, cats like to chase things and if the become bored they will
give up and probably take a pre-prandial nap, as they are wont to do.

John Schmitt

In article , "John Schmitt" John49
@mdx.ac.uk says...
snip
To provide hours of fun, buy a cat

Does anyone buy non-pedigree cats? In my experience they just turn
up one day and decide to move in.

"Rob Morley" wrote in message
t...
In article , "John Schmitt" John49
@mdx.ac.uk says...
snip
To provide hours of fun, buy a cat

Does anyone buy non-pedigree cats? In my experience they just turn
up one day and decide to move in.

Mine too.

Mary

On Tue, 09 Aug 2005 11:02:29 +0100, John Schmitt wrote:

raden wrote:

You could always give them a golf ball to unravel, that would last a few
minutes more

Beware! The bladder at the core contains fluid at high pressure and
puncturing this can result in injury. Not being a spoilsport, but I
remember a rained-off Wednesday (sports day) afternoon when my class,
out of boredom, proceeded to dismantle a golf ball. Someone stuck a
compass into the core and the goo inside easily made the ceiling.
Shooting yourself in the eyes with that will at best be very unpleasant.

You'll be doing well to find a "wound" golf ball these days, and even then
there's little guarantee it would have an old-fashioned liquid centre. All
are solid construction, one way or another.

The goo was only under pressure due to the rubber wound around it. If you
removed all of that, only a fairly floppy sack remained.

[Sign of mis-spent youth. I'll get me coat.]

--
I have a plan so cunning, you could put a tail on it and call it a weasel

In message , John Schmitt
writes

You could always give them a golf ball to unravel, that would last a
few minutes more

Beware! The bladder at the core contains fluid at high pressure and
puncturing this can result in injury. Not being a spoilsport, but I
remember a rained-off Wednesday (sports day) afternoon when my class,
out of boredom, proceeded to dismantle a golf ball. Someone stuck a
compass into the core and the goo inside easily made the ceiling.
Shooting yourself in the eyes with that will at best be very unpleasant.

Castor oil IIRC (at least acco4rding to the quiz in one of the
Indonesian chatrooms)

We used to pull them apart as kids - I don't remember any injuries

--
geoff

"raden" wrote in message
...
In message , John Schmitt
writes

You could always give them a golf ball to unravel, that would last a few
minutes more

Beware! The bladder at the core contains fluid at high pressure and
puncturing this can result in injury. Not being a spoilsport, but I
remember a rained-off Wednesday (sports day) afternoon when my class, out
of boredom, proceeded to dismantle a golf ball. Someone stuck a compass
into the core and the goo inside easily made the ceiling. Shooting
yourself in the eyes with that will at best be very unpleasant.

Castor oil IIRC (at least acco4rding to the quiz in one of the Indonesian
chatrooms)

We used to pull them apart as kids - I don't remember any injuries

Had golf been invented then?

Mary

--
geoff

In article , "Mary
Fisher" says...

"raden" wrote in message
...
In message , John Schmitt
writes

You could always give them a golf ball to unravel, that would last a few
minutes more

Beware! The bladder at the core contains fluid at high pressure and
puncturing this can result in injury. Not being a spoilsport, but I
remember a rained-off Wednesday (sports day) afternoon when my class, out
of boredom, proceeded to dismantle a golf ball. Someone stuck a compass
into the core and the goo inside easily made the ceiling. Shooting
yourself in the eyes with that will at best be very unpleasant.

Castor oil IIRC (at least acco4rding to the quiz in one of the Indonesian
chatrooms)

We used to pull them apart as kids - I don't remember any injuries

Had golf been invented then?

I think maybe they were still using leather balls stuffed with
feathers :-)

In message , Mary
Fisher writes

"raden" wrote in message
...
In message , John Schmitt
writes

You could always give them a golf ball to unravel, that would last a few
minutes more

Beware! The bladder at the core contains fluid at high pressure and
puncturing this can result in injury. Not being a spoilsport, but I
remember a rained-off Wednesday (sports day) afternoon when my class, out
of boredom, proceeded to dismantle a golf ball. Someone stuck a compass
into the core and the goo inside easily made the ceiling. Shooting
yourself in the eyes with that will at best be very unpleasant.

Castor oil IIRC (at least acco4rding to the quiz in one of the Indonesian
chatrooms)

We used to pull them apart as kids - I don't remember any injuries

Had golf been invented then?

Watch it grandma !

--
geoff

"raden" wrote in message
...


We used to pull them apart as kids - I don't remember any injuries

Had golf been invented then?

Watch it grandma !

Well, in 1764 weplayed at St Andrews but I was but a youngster, golf had
been played for some time before then - you might know more about it than I
do ...

Mary

--
geoff

raden wrote:

[golf ball cores - this thread is veering past OT!]


Castor oil IIRC (at least acco4rding to the quiz in one of the
Indonesian chatrooms)


I have a dim and distant memory of honey being one of the fillings,
although the web tells me that corn syrup (a sort of US golden syrup
type thing) and saline were used. It appears that the liquid filling
made the ball more stable, although solid cores made for longer strokes,
i.e. further into the rough.

http://www.learnaboutgolf.com/beginner/balltypes.html

will provide the relevant information for those who have not yet died of
boredom.

At some point I might actually have the combination of enough money and
enough leisure time simultaneously to take up the sport. A man can
dream, can he not?

John Schmitt

John Schmitt wrote:
At some point I might actually have the combination of enough money and
enough leisure time simultaneously to take up the sport. A man can
dream, can he not?

Ach, it's just a nice walk, spoilt.

Owain

In message , John Schmitt
writes
raden wrote:

[golf ball cores - this thread is veering past OT!]


Castor oil IIRC (at least acco4rding to the quiz in one of the
Indonesian chatrooms)


I have a dim and distant memory of honey being one of the fillings,
although the web tells me that corn syrup (a sort of US golden syrup
type thing) and saline were used. It appears that the liquid filling
made the ball more stable, although solid cores made for longer
strokes, i.e. further into the rough.

http://www.learnaboutgolf.com/beginner/balltypes.html

will provide the relevant information for those who have not yet died
of boredom.

At some point I might actually have the combination of enough money and
enough leisure time simultaneously to take up the sport. A man can
dream, can he not?

I got a hole in one on my 6th time out (Absolute sheer fluke of course)
then got bored and haven't played since

--
geoff