Making presentations in PowerPoint is satisfying, moreover, it's easy to get
The PowerPoint program is intuitive to learn and easy to create your own PPT
slides and build them into a slide show. If you have
Microsoft Office you may find that you already have PowerPoint along with Word
One way to begin is simply to open any example presentation. Just
download one of our free PPT files and open it with PowerPoint. As you examine the slides, so it will become obvious how
to add pictures and titles, if you do get stuck, ask the wonderful built-in 'Help'. To
make an amazing slide show requires these skills;
Imagination - Think of an idea, then build a themed slide set
Artistic - An eye for a good picture
Wordsmith - Choose a catchy title for each slide
Humour - Your viewers will appreciate a funny PowerPoint Presentation
PowerPoint mechanics - Actually, this is the easiest skill of them all, the
program is so intuitive.
Good luck with creating your amazing PowerPoint Presentation
Will and Guy
More Hailstone Pictures
Hailstones are often associated with thunderstorms. What seems to
happen is that compacted snow is blown upwards as well as downwards, thus
causing more compaction and ever larger stones. Such hailstones cannot
defy gravity for ever and eventually they precipitate out of the clouds and fall
In spectacular thunderstorms, hailstones can grow as big as 12 cm before
dropping out of the cloud. Normally a hailstone is less than 2cm in
Surprisingly, the biggest hailstones fall not in Australia, not even in
America, but in India.
Picture of Hailstone Hitting Windscreen
The damage caused by hailstones depends on their consistency; big soft stones
are not as damaging as smaller, but solid hailstones. If you think about
it, the bigger the hail the faster it can fall, thus bigger stones do more
damage not just because of their size, but also because of their velocity.
Graupel hail is a term applied to hail that is made up lots of tiny balls
that break up easily, see photograph to the right.
The word megacryometeor was introduced by Martinez-Frias and Travis in 2002.
Megacryometeors are giant hailstones which are formed under unusual atmospheric
conditions. They commonly reach 10 kilos (25lbs) and measure 20cms 8inches
in diameter. It's hard to believe, but one of 200 kilos was reported from
Spain. Actually, Spain seems to attract more megacryometeors than anywhere
As more and more people become aware of these giant hailstones, so they keep
them refrigerated until scientists arrive and measure them.
In addition to their huge size, megacryometeor are of interest because
they may be an indicator of global warming. The simplistic argument goes
that more and bigger the megacryometeors, the greater the indication of global
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