Designers snowmobiles often use the brake — it’s called scraping and is a any lever, bury in the present. Such a device will be useful on a conventional children’s sleds. It will be protected against injury, to prevent the assaults on obstacles or other capsized the sled. For “on the front strap can be set fortochny (one-piece) loop, and the clamp and bolts to attach the lever — for example a piece of old metal ski poles, the brake end of which is bent like an L.
Recommend to read
Gas TANK
For works in chemical laboratory hydrogen is produced usually by the reaction of zinc with hydrochloric acid (HCL). Sometimes you need a small amount of gas, and 1 g of zinc makes about...
AN IMPROVED VERSION
Isn't it tempting to make a motor-plow design which has almost no welds! That's why published in the "M-K" № 3, 1985 article "the wheel of veloplugs" on how to build such a mechanism...
