I invented the Bow Blower, a combination of the bow drill and forge blower to make a device that can force air into a fire while being easy to construct from commonly occurring natural materials using only primitive technology. I began by fanning a fire with a piece of bark to increase its temperature. It is this basic principle I improved on throughout the project. Next, I made a rotary fan from two pieces of bark that slot together at right angles to each other to form a simple 4 bladed paddle wheel about 20 cm in diameter and 5 cm tall. The blades of the fan were not angled and were designed only to throw air outwards away from the axle when spun. The rotor of the fan was made by splitting a stick two ways so it formed 4 prongs. The fan was then inserted into the prongs and the end lashed to hold it in place. Spinning the fan rotor back and forth between the palms of the hands fanned the fire. But only some of the wind generated by the fan reached the fire. The rest of it was blowing in other directions, effectively being wasted. So I built a fan housing from unfired clay to direct the air flow into the fire. This was basically an upturned pot with a hole in the top, a spout coming out of the side. The housing was about 25 cm wide and 8 cm tall. The hole in the top and the spout were both about 6 cm in diameter so that the air coming in roughly equalled the air coming out. The base of the fan rotor sat in a wooden socket placed in the ground to make it spin easier and the top of the rotor protruded from the hole in the top of the housing. Now when the fan spun, air entered the hole in the top of the housing and exited the spout in the side. Importantly, it doesn’t matter which way the fan spins, air always goes into the inlet and out the spout. Air is thrown out towards the walls of the housing and can only leave through the spout while the vacuum in the centre sucks new air into the housing through the inlet. A separate clay pipe called a tuyere was made to fit

Making fire sticks primitively from scratch, making a fire using the sticks and making and firing a small pot to test clay from the hut. The species of wood used for the fire sticks is 'Abroma mollis'. In the hibiscus/cottonwood family (Malvaceae). Wordpress: https://primitivetechnology.wordpress.com/ Patreon page: https://www.patreon.com/user?u=2945881 I have no face book page. Beware of fake pages.

I built a fenced enclosure and cultivated sweet potatoes (from civilisation) and yams (from the wild) in it. I originally had a small 3X3 m garden behind the wattle and daub hut that already had some sweet potato and yam vines growing in it that were planted after the hut was built. But wallabies kept eating the leaves. So I made a wattle enclosure around it to keep them out. Wood ash was added to the soil to provide potassium and phosphorus for the growing tubers. The previous small garden was organised in rows (not seen in this video) but this was hard to water during dry weather. So I re-organised the patch into 1 meter wide mounds with pits in the centre. Vines were planted into the mounds and water poured into the centre of each mound watered the vines. So then I had a small garden with 9 mounds contained within it. I decided to enlarge the patch to fit in more mounds so I took out 2 sides of the fence and extended them by a meter each. So the patch ended up being 4X4m and contained 16 mounds. In addition to wood ash, leaf mould was added to the mounds for fertility and to reduce loss of moisture. The patch, being in the dark forest understory, received only about 2-3 hours of direct sunlight per day so the yield was disappointingly small. Nevertheless, the patch produced a few small sweet potatoes and a single larger yam. I also picked some green growing tips of the sweet potato vine that can also be eaten. I boiled the greens slightly in a pot with a hot stone and ate the leaves. I then roasted the sweet potatoes and yam in the coals of the fire. The sweet potatoes (purple fleshed tuber) taste sweet and starchy whereas the yam (white fleshed tuber) tastes similar to an ordinary potato. After eating, I took the wood ash from the fire and poured it back into the mounds that were harvested, replanted them and watered them. Wordpress: https://primitivetechnology.wordpress.com/ Patreon page: https://www.patreon.com/user?u=2945881 I have no face book page.

I installed a fireplace and chimney in the tiled roof hut. This is for for lighting and cooking. Heating is already taken care of by the underfloor heating system. I knocked a hole in the back wall and made it from the same mud used to build the hut. Some left over roof tiles were used as a chimney cap. I made same pottery too. Clay was dug from the creek bank, mixed with broken crushed tiles as grog and formed into a cooking pot and 4 large water pots. I burnished them (rubbed till smooth) with a snail shell and a seed pod making them stronger and more water proof. Then I fired them in the tile kiln. The kiln fired pottery was larger and stronger than my previous pit fired pots and also had a lower breakage rate with only one of the five pots breaking. I used the water pots to carry water from the creek to irrigate a sweet potato patch behind the wattle and daub hut (over the creek from the tile hut). The cooking pot was used to boil creek water. I used two different methods to show how to boil water: 1) in the kiln using it like a stove and 2) using pot boiling stones from the fire place. Boiling the water with rocks was faster than boiling a pot over a fire. Wooden tongs were made and rocks were put in the fireplace till they glowed red hot. The rocks were then put in the cold water in the pot. It only took 4 rocks to boil the water violently. This is probably the best method for sterilizing suspect water for drinking and could be done even without a pot (even a puddle next to a creek could be boiled this way). Wordpress: https://primitivetechnology.wordpress.com/ Patreon page: https://www.patreon.com/user?u=2945881 I have no face book page. Beware of fake pages.