If it is in your carry on or luggage.
A dryer is used when the hair is wet to dry and style hair. A straightener is used to straighten dry hair.
You can straighten your hair wish a blow dryer, a flat iron/hair straightener, or with chemicals.
A hair dryer, a hair straightener or maybe shoes.
You could use a blow dryer or a perm?
No you will not go bald. Your hair shaft can get damaged but you will not loose your hair.
Yes you can if they are electric. If it is a lotion or similar it must comply with the 3 ounce ule in a sealed ziplock bag.
its carry on luggage isn't it?!
If you get a sufficiently short haircut, your hair will not be wavy. Half an inch of hair cannot form waves.
you could use a hair straightener or use a blow dryer and use a brush to keep it straight whist you blow dry
An oil (like Moroccan oil or Fekkai) or relaxing serum (like paul mitchel) will help..if you use a product like that after you shower and then use a hair dryer to dry your hair, that will get your hair pretty straight....I think that's the closest thing to straightening your hair besides from using a hair straightener.
hair straightener = Haarglätter (literally meaning hair straightener)