Yes, knex roller coaster sets come with instructions to build the model in the picture and sometimes even other models. Most of the instructions are also available on-line as PDFs for download.
One can purchase a K'nex roller coaster kit on the Internet. Some Internet sites that sell K'nex roller coaster kits are Amazon, Walmart, eBay, and ModelRollerCoasterHQ.
Buy it.
somewhere
KNEX - FM - was created in 1991.
you might want to use knex if you want to build a model rollercoaster. the kits usually range from 40 to 50 dollars
KNEX-LP was created on 1997-10-16.
Find one you like, type in on comp. Look up and go to old knex website.
Knex offers a wide selection of toys from insects to buildings. Knex is kid-friendly and the snap together blocks are something that kids will spend hours playing with.
Not a clue
To make a DNA model using a Knex Serpent's Spiral Coaster kit, you can use the rods and connectors to represent the sugar-phosphate backbone of the DNA strand. Use different colored pieces to represent the four nitrogenous bases (adenine, thymine, cytosine, and guanine). Connect the pieces in a double helix shape to mimic the structure of DNA. Make sure to alternate the bases correctly according to the base-pairing rules (A with T and C with G).
No they do not make Knex.
(This is DSman195276 from Instructables.com) Knex guns get there strength from rubberbands, and shoot rods with flat ends. The answer for the question would have to be maybe. If you were to sharpen a knex rod and fire it at someone around the neck area, you could kill someone, but it is highly unlikely, and will probably just draw blood.