Those stars and colours you see when you rub your eyes are called phosphenes...

Have you ever closed your eyes, rubbed them and seen stars? Or at least little pops of light? It turns out that those pops of light have a name: phosphenes.
They are a phenomenon characterized by seeing light without light actually entering the eye. This rubbing mechanically stimulates the cells of the retina causing this effect. Sometimes, these phosphenes can still be seen for moments after you open your eyes.
Meditators have also reported experiencing phosphenes, and they have actually been known since antiquity. Ancient Greeks described them. Other reasons people ‘see stars’ are because of sneezing, coughing, blowing your nose or receiving a blow to the head.

Tattoos...

• I don’t have a tattoo, I want one, just haven’t really got the money yet. I want one saying “Made in China” on the bottom of my foot, don’t know why really, but everything’s made in China these days. I’d also love to get a UV tattoo of a skeleton on my body. Oh and I lied about Jesus having a tattoo, I don’t think he did.
• Tattoos have been around for thousands of years, I heard Jesus himself had a tattoo. They used to be very fashionable and expensive although these days they are seen as cheap and horrible. However tacky they may look, tattoos are becoming more popular and are available to nearly anybody
• In 1991, a mummy was found on the border of Australia and Italy, this mummy was called Ötzi the Iceman. Ötzi has been frozen since roughly 3300 BC, which is over fifty centuries ago. Ötzi had around 57 tattoos on his lower spine, behind his left knee, and on his right ankle. Although the tattoos were only dots and lines, it’s still the earliest form of tattoos we know of.
• In 2002 a poll was carried out that 1 in 8 people have at least one tattoo. That was seven years ago though, so I’m pretty sure with the increasing number of young people getting tattoos, it would have gone up since then. As of 2006 36% of people from the age of 18 to 29 had at least one tattoo.
• New tattoos are venerable to sunlight, even after it’s healed, so be extra careful to avoid direct sunlight and wear suitable clothing to protect your tattoo, or decent sun cream.
• There are over one hundred different colours of a tattoo ink, so you should find the colour you want eventually.

Graffiti!!

• The word graffiti comes from the Greek word 'graphein' which means 'to write'. Graffiti was first found on ancient Roman architecture, although back in them days there was no such thing as spray paint, they calved images out on walls.
• Spray cans are commonly used for creating graffiti as they have different nozzles for different coverage.
• Most graffiti artists prefer to be called 'writers' and each have their own unique 'tag'. Artists who are into graffiti have a desire for public recognition and want to see their work around town, this is why each artists tag is different... it's kind of like a unique signature.
• Graffiti can be very artistic and colourful or as simple as writing your name in black paint.
• Graffiti artists who are new or inexperienced to an area are known as 'toys'.
• Graffiti is popular and can be seen in many museums and art galleries, although in many countries it is still illegal and you could be fined. It is illegal in most countries without getting the property owner’s permission first
• The Longest Graffiti Scroll was created in Greece on the 15th December 2008 and it measured at 700.92 metres long, where 2503 people participated to help the charity of "Smile of the Child". This is an official record and can be found in the Guinness World Record.