Homemade Wifi?

[Question]
How does one go about making a wireless network without anything except a NIC and some homemade antenna gadgetry?

[Question2]
How do I make that homemade gadgetry?

[Elaboration]
I have one computer with only a NIC card, can I in nay way, make that NIC card pick up my wireless network?

>>4

From what I gather, he's talking about making wireless network devices from standard ethernet cards.
Not going to happen unless you've got godly electronics experience, and if you did, you wouldn't be asking here.