1 00:00:00,520 --> 00:00:03,840 Speaker 1: Welcome to Brainstuff from house Stuff works dot com where 2 00:00:03,840 --> 00:00:15,040 Speaker 1: smart happens. Hi Am Marshall Brain with today's question, why 3 00:00:15,200 --> 00:00:19,360 Speaker 1: is bamboo appearing in everything from flooring, defencing to furniture? 4 00:00:19,400 --> 00:00:23,160 Speaker 1: All of a sudden, bamboo is appearing in everything from 5 00:00:23,160 --> 00:00:26,040 Speaker 1: flooring to paneling. And there are even people riding around 6 00:00:26,079 --> 00:00:29,560 Speaker 1: on bamboo bicycles now and they're not too distant future. 7 00:00:29,600 --> 00:00:32,880 Speaker 1: It's possible to imagine bamboo replacing wood in a number 8 00:00:32,880 --> 00:00:37,040 Speaker 1: of furniture and fencing products as well. Bamboo's use is 9 00:00:37,159 --> 00:00:41,680 Speaker 1: growing because bamboo has several advantages over traditional woods like 10 00:00:41,840 --> 00:00:44,839 Speaker 1: pine and oak. The first advantage is the fact that 11 00:00:44,920 --> 00:00:49,360 Speaker 1: bamboo grows fast. Bamboo is not a tree. It's actually 12 00:00:49,440 --> 00:00:53,160 Speaker 1: a very very large type of grass with an extremely 13 00:00:53,240 --> 00:00:57,680 Speaker 1: strong stem. This grass heritage means that bamboo does not 14 00:00:57,880 --> 00:01:01,240 Speaker 1: have bark, and it doesn't have deadwood at the center 15 00:01:01,280 --> 00:01:04,080 Speaker 1: of the trunk. It also grows more like a long, 16 00:01:04,160 --> 00:01:08,280 Speaker 1: straight column rather than being tapered like most trees. Like 17 00:01:08,400 --> 00:01:13,280 Speaker 1: many other grasses, bamboo can grow incredibly quickly. Given the 18 00:01:13,360 --> 00:01:16,640 Speaker 1: right soil and the right weather, Some varieties of bamboo 19 00:01:16,680 --> 00:01:19,240 Speaker 1: can grow more than a foot in a single day. 20 00:01:19,280 --> 00:01:21,959 Speaker 1: This speed means that it takes much less time to 21 00:01:22,000 --> 00:01:25,319 Speaker 1: get a usable crop of bamboo than it does to get, say, 22 00:01:25,440 --> 00:01:28,639 Speaker 1: a usable crop of pine trees. An acre of pine 23 00:01:28,640 --> 00:01:32,000 Speaker 1: trees takes three or four decades to reach a usable size. 24 00:01:32,400 --> 00:01:36,000 Speaker 1: Bamboo grows more densely and can be harvested many times 25 00:01:36,000 --> 00:01:38,840 Speaker 1: in that same span of time. This means that an 26 00:01:38,880 --> 00:01:42,040 Speaker 1: acre of bamboo forest is far more productive than an 27 00:01:42,080 --> 00:01:45,600 Speaker 1: acre of pine trees or oak trees. Another advantage of 28 00:01:45,600 --> 00:01:50,160 Speaker 1: bamboo is its strength. Bamboo is surprisingly strong, and pound 29 00:01:50,200 --> 00:01:54,440 Speaker 1: per pound, certain species are as strong as steel. Heat 30 00:01:54,480 --> 00:01:58,960 Speaker 1: treating the bamboo stocks maximizes the strength. Bamboo is so 31 00:01:59,040 --> 00:02:01,520 Speaker 1: strong that it's being used in place of steel to 32 00:02:01,600 --> 00:02:05,200 Speaker 1: make bicycle frames. In some cases, you can buy bamboo 33 00:02:05,240 --> 00:02:07,840 Speaker 1: bicycle frames pre made, or you can look on the 34 00:02:07,880 --> 00:02:10,880 Speaker 1: internet and find instructions for building your own. It may 35 00:02:10,919 --> 00:02:13,960 Speaker 1: surprise you that these frames are not made of any 36 00:02:14,040 --> 00:02:19,080 Speaker 1: kind of specially engineered bamboo composite material. It's just normal 37 00:02:19,160 --> 00:02:22,320 Speaker 1: bamboo stocks that have been heat treated with a blowtorch 38 00:02:22,400 --> 00:02:26,880 Speaker 1: to strengthen the fibers. Bamboo flooring is a composite. To 39 00:02:27,040 --> 00:02:31,639 Speaker 1: understand bamboo flooring, think about a typical bamboo stock. It's 40 00:02:31,639 --> 00:02:34,560 Speaker 1: a hollow cylinder and the walls of the cylinder are 41 00:02:34,639 --> 00:02:39,360 Speaker 1: not very thick, the cylinder can be cut into long strips. 42 00:02:39,400 --> 00:02:41,959 Speaker 1: These strips will have a slight curve to them because 43 00:02:42,000 --> 00:02:44,520 Speaker 1: they were cut from a cylinder, but if the cylinder 44 00:02:44,600 --> 00:02:48,040 Speaker 1: is large, say three inches in diameter or greater, the 45 00:02:48,120 --> 00:02:51,680 Speaker 1: curve is very minor. It's easily removed by running the 46 00:02:51,760 --> 00:02:54,880 Speaker 1: strip through a planer that makes it square. So now 47 00:02:54,960 --> 00:02:57,880 Speaker 1: you have a thin square strip of bamboo that looks 48 00:02:57,880 --> 00:03:00,160 Speaker 1: a lot like the wood for making a yard stick. 49 00:03:00,600 --> 00:03:03,520 Speaker 1: These strips are turned into flooring in very much the 50 00:03:03,560 --> 00:03:07,040 Speaker 1: same way that pine is turned into plywood. Strips are 51 00:03:07,120 --> 00:03:10,720 Speaker 1: laid down in alternating layers, with a heat activated glue 52 00:03:10,840 --> 00:03:15,000 Speaker 1: added between the layers. A heated press then compresses the 53 00:03:15,080 --> 00:03:19,000 Speaker 1: layers and activates the glue to bind everything together. When 54 00:03:19,000 --> 00:03:22,680 Speaker 1: the process is complete, you have a laminated bamboo panel 55 00:03:22,760 --> 00:03:26,399 Speaker 1: that's incredibly strong and relatively light weight. It can then 56 00:03:26,400 --> 00:03:29,680 Speaker 1: be cut into strips or squares to make either traditional 57 00:03:29,760 --> 00:03:34,240 Speaker 1: tongue and groove flooring or parquet flooring. Bamboo flooring that's 58 00:03:34,320 --> 00:03:38,320 Speaker 1: made in this way has several advantages over traditional hardwood flooring. 59 00:03:38,640 --> 00:03:42,720 Speaker 1: The lamination process makes it extremely strong and natural. Bamboo 60 00:03:42,800 --> 00:03:46,840 Speaker 1: tends to resist dents better than hardwood floors do. Bamboo 61 00:03:46,840 --> 00:03:50,120 Speaker 1: flooring tends to be less expensive because bamboo grows so 62 00:03:50,200 --> 00:03:53,080 Speaker 1: much faster than oak or pine. Best of all for 63 00:03:53,200 --> 00:03:56,680 Speaker 1: many people is the fact that bamboo feels greener than wood. 64 00:03:57,120 --> 00:04:00,480 Speaker 1: When loggers clear cut of forest for the lumber leaves 65 00:04:00,480 --> 00:04:03,960 Speaker 1: a scar that lasts for many years. With a bamboo 66 00:04:04,040 --> 00:04:07,200 Speaker 1: for us, the roots are still alive and they regenerate 67 00:04:07,280 --> 00:04:11,360 Speaker 1: the bamboo stocks with surprising speed. That, plus the fact 68 00:04:11,440 --> 00:04:14,640 Speaker 1: that bamboo can be harvested so often, means that it 69 00:04:14,720 --> 00:04:17,479 Speaker 1: takes far less land to grow bamboo than to grow 70 00:04:17,520 --> 00:04:20,320 Speaker 1: the same amount of wood. The only thing you need 71 00:04:20,320 --> 00:04:23,280 Speaker 1: to keep in mind with bamboo flooring and other bamboo 72 00:04:23,320 --> 00:04:26,679 Speaker 1: products is the source. You want to purchase your flooring 73 00:04:26,760 --> 00:04:31,719 Speaker 1: from a reputable manufacturer to ensure uniform quality, appearance, strength, 74 00:04:32,120 --> 00:04:37,520 Speaker 1: debt resistance, and chemical composition. Be sure to check out 75 00:04:37,520 --> 00:04:40,720 Speaker 1: our new video podcast, Stuff from the Future. Join how 76 00:04:40,760 --> 00:04:43,280 Speaker 1: Stuff Work staff as we explore the most promising and 77 00:04:43,320 --> 00:04:48,040 Speaker 1: perplexing possibilities of tomorrow. The how stuff Us I Find 78 00:04:48,080 --> 00:04:51,000 Speaker 1: app has arrived down at it Today on iTunes