:00:00. > :00:09.Hi guys, Ricky here. The 17 mile per hour hovercraft without any breaks
:00:10. > :00:17.coming up. Plus, the full-size house printed in 3-D. This is Newsround.
:00:18. > :00:22.But let's start with something that loads of you have been getting in
:00:23. > :00:26.touch about today, whether you prefer e-books or traditional paper
:00:27. > :00:30.ones. Jessica in Peterborough has told us:
:00:31. > :00:33."I prefer to read the paper book because the words are much clearer
:00:34. > :00:38.than on the screen and the pictures have more colours."
:00:39. > :00:41.And Holly in Hebden Bridge says: "I don't mind reading the books
:00:42. > :00:47.occasionally, but will always prefer real, proper books."
:00:48. > :00:53.Well, that debate was kicked off by a report we ran first thing this
:00:54. > :00:56.morning. Sales of paper books are at an 11 year low, so BBC reporter Tim
:00:57. > :01:00.Muffet asked leading children's author Judith Kerr if paperbacks
:01:01. > :01:03.have a future, as well as more about her career as a writer.
:01:04. > :01:06.The reporter who came to tea. "Suddenly, there was a ring at the
:01:07. > :01:13.door. Sophie's mummy said, I wonder who that can be?"
:01:14. > :01:17.Hello, Judith. I have been invited to Judith Kerr's house, creator of
:01:18. > :01:20.The Tiger Who Came To Tea, Mog, and many other famous children's books.
:01:21. > :01:23.So this is the room where The Tiger Who Came To Tea and Mog all came to
:01:24. > :01:27.life. Everything I've ever done, I've done
:01:28. > :01:32.in this room. The Tiger Who Came To Tea is the story of a young girl,
:01:33. > :01:36.Sophie. And Tiger, who comes round, uninvited, to her house. He helps
:01:37. > :01:39.himself to all the food and drink they have. He even drains all the
:01:40. > :01:43.water from the taps. We had the children and I made up
:01:44. > :01:47.stories for them. And one of them was the story about a tiger, which
:01:48. > :01:57.my daughter liked and made me tell her again and again.
:01:58. > :02:00.The book was first published back in 1968 and still sells lots of copies
:02:01. > :02:04.today. Judith's stories have remained popular through the years.
:02:05. > :02:13.Does she still think there is a place for paper books? Some children
:02:14. > :02:19.are accessing books through electronic devices.
:02:20. > :02:23.It is not the same. Some books are all right as an e-book. Which you
:02:24. > :02:26.would maybe read once and never read again. I do not think that printed
:02:27. > :02:56.books will ever disappear. They are a different thing.
:02:57. > :03:02.In other news, fighting to control parts of Ukraine's continuing today.
:03:03. > :03:05.The Government there says they'll carry on with plans to try and
:03:06. > :03:07.retake several towns and cities from Russian supporting groups, despite
:03:08. > :03:10.violent clashes yesterday. The pro-Russians have taken over
:03:11. > :03:14.Government buildings and airports in the east of the country. It's all to
:03:15. > :03:17.do with a split between those who want nearby Russia to have more
:03:18. > :03:21.influence in Ukraine and those who want to be closer to Europe.
:03:22. > :03:24.And a mountain in the Lake District has been put up for sale for almost
:03:25. > :03:29.?2 million. Blencathra, in Cumbria, is being sold off by its owner to
:03:30. > :03:33.help him pay off a large bill he owes the Government. The land
:03:34. > :03:33.belongs to the Earl of Lonsdale. His family bought the
:03:34. > :03:38.belongs to the Earl of Lonsdale. His ago. Whoever buys it would own 2677
:03:39. > :03:39.acres, these amazing views and the title, Lord of the Manor of
:03:40. > :03:52.Threlkeld. Sweets, pants, and now the homes we
:03:53. > :03:56.live in. Apparently there is not much people want to try to print in
:03:57. > :03:59.3-D. Architects in Amsterdam have started work on a full-size 3D
:04:00. > :04:02.printing house that they said could be a more environmentally friendly
:04:03. > :04:11.way to construct cities in the future. Could this be the year
:04:12. > :04:17.houses are made any future. No brakes are tiles, just a massive 3D
:04:18. > :04:22.printing machine. This is the first project of its kind. How do you
:04:23. > :04:27.print a huge house? The BBC's Anna Hollick and took a look at how it
:04:28. > :04:34.works. It is built inside a huge shipping container. Here, we have
:04:35. > :04:41.the latest parts of the Amsterdam 3-D house. This will be the balcony.
:04:42. > :04:48.The machine is layering, almost like a glue gun. Only one section has
:04:49. > :04:50.been made so far. But the people behind it hoped that eventually the
:04:51. > :04:55.pieces will slot together like a giant Lego building. It is expected
:04:56. > :04:59.to take years to complete but could one day become a more eco-friendly
:05:00. > :05:07.form of construction. Just imagine that you could turn materials into
:05:08. > :05:12.printable material and suddenly you have sensible materials from waste.
:05:13. > :05:19.These children were given a first-hand view. What do they think?
:05:20. > :05:25.It is good because it doesn't need to chop down trees.
:05:26. > :05:29.The architects on the project hope it will make people at least went
:05:30. > :05:34.about how we build things in years to come.
:05:35. > :05:38.Finally, it can reach speeds of 70 miles per hour, it hasn't got any
:05:39. > :05:42.breaks, and it travels on land and water. The drivers of the UK's top
:05:43. > :05:44.hovercrafts are gearing up for the first race of the British
:05:45. > :05:48.championship in Lancashire today. The hovercraft can go from 0-60 in
:05:49. > :05:51.less than four seconds. The sport is popular amongst teenagers and the
:05:52. > :05:56.action can get incredibly heated. There is more on that back here just
:05:57. > :06:01.before 2pm. In the meantime, head to the website for loads of cool stuff.