full episodes downton abbey

Stone is hard to carve, but very easy to model, as Rob shows. This is an excellent, inexpensive and simple way to create :stone" in model landscapes and railway layouts.

Joke cards are popular, so Rob shows how to make one that will give anyone opening it a noisy surprise

Rob discusses and illustrates some of the main composition rules that have been used by major artists.

Rob shows you some of the most common corals; brain, staghorn, mushroom and so on, but also a surprise inclusion, not made by coral polyps at all.

In Queensland, Australia, deadly jellyfish keep you out of the water just when the weather makes bathing most attractive, but how do these tiny creatures pack such a lethal punch? Rob makes a simple model that shows how their stinging cells work.

Pop-up books are fascinating but very hard to make. Rob's animated face card is much easier, but still a great deal of fun to design and do.

Deane and Rob present challenging puzzles involving loops and chains made from coloured woollen thread.

Waxwork flowers were once extremely fashionable. Not many people do them now, but Rob shows how to make simple wax flowers with a candle - and takes a quick look at some vegetable creatures!

Changes of state -- melting, freezing, boiling, condensing-- involve heat transfer , but rearranging rubber molecules from ordered to disordered has the same effect, as Rob shows with a balloon.

Rob shows how the eye works to create a blind spot in everything we see, and how we get the illusion of light simply from pressure.

Rob deciphers this impossible coded message easily with red cellophane spectacles.You can easily do the same.

Deane presents puzzles which require viewers to fold and wrap pictures in the mind.

Roadside reflectors are called "cat's eye" reflectors because they bounce light back so well at night, but reflective clothing and road signs do it just as well, thanks to thousands of tiny glass beads that can bend light rays back on themselves.

Mucilage is the lick-and-stick glue on some stamps, envelopes and stickers. Very useful stuff and, as Rob shows, it is extremely easy to make your own, which will keep for a long time in the refrigerator once you have made it.

Deane shows how to make sound waves visible, using a cream container, a balloon
and rice grains.