No metal detectors don’t detect magnets. This is because metal detectors rely on eddy currents that are induced in metals by a coil driven by a radio frequency oscillator. Metallic magnets made of iron or iron alloyed with neodymium or cobalt have large conductivities and should be easily sensed.

Normal things, even humans, can levitate if they are placed in a strong magnetic field. Such materials can be levitated using magnetic fields of about 10 Tesla.

So the short answer is that a magnetized material is considered a hazardous material and is regulated as a hazardous class 9 material when it is offered for transportation by air and when it has a magnetic field strength that is capable of causing the deviation of aircraft instruments.

Whether they’re magnetic, electronic, or motorized, most toys can be transported in carry-on or checked baggage. However if they’re going on board with you, it’s recommended that you check with your specific airline to confirm that your toy will fit in an overhead in or under the seat with no problems.

Each country’s government has slightly different rules about what can and can’t be brought aboard a plane, but as a general rule you should never put any of the following in your carry-on: firearms, explosives, baseball bats or other sporting equipment that could be used as weapons, self-defense sprays (such as mace).

Do checked bags get searched for drugs? Yes, checked bags undergo random searches which is why you want to put it in your carry-on. It is recommended that you do NOT tell Airport Security or the TSA Agents that you have the medical or recreational marijuana on you.

Technically, any piece of luggage that you “carry on” to an airplane is a carry-on bag. Most airlines allow one piece of carry-on luggage or “hand baggage” that can fit in the overhead bin, plus a “personal item” (a smaller purse, computer bag, diaper bag, small backpack, etc.

Solid food items (not liquids or gels) can be transported in either your carry-on or checked baggage. TSA officers may instruct travelers to separate items from carry-on bags such as foods, powders, and any materials that can clutter bags and obstruct clear images on the X-ray machine.

Yes, the Transportation Security Administration (TSA) will allow you to bring sandwiches through airport security in your carry-on baggage. Just about any type of sandwich can pass through the TSA checkpoint, as long as it is wrapped or in a container and isn’t overly soggy.

Thirsty flyers—Bottled water: You can’t bring a bottle of water through the checkpoint, but you can bring an empty bottle through the checkpoint and then fill it up once you’re through security. That will even save you a few bucks.

Each passenger may carry liquids, gels and aerosols in travel-size containers that are 3.4 ounces or100 milliliters. Each passenger is limited to one quart-size bag of liquids, gels and aerosols.

The security administration’s rules on liquids are clearly spelled out on its Web site, www.tsa.gov (Click on “For Travelers” and then “3-1-1 for Carry-ons.”) The rules state that a passenger may carry on liquids and gels only in separate three-ounce containers in a single quart-size plastic bag, with a limit of one …

Liquids containers smaller than 3.4 ounces are allowed but anything larger than this must be packed in your checked luggage. You may bring multiple 3 ounce containers, as long as they fit inside a quart size bag.

3.4 ounces

Because three ounces of explosives aren’t enough to critically damage a plane. After the Feds foiled a liquid explosive plot in 2006, officials tested explosives and determined the amount of liquid needed for a serious blast. In fact, 3.4 ounces is the maximum amount of liquid that poses little to no risk to travelers.

The security officers will not allow 4 oz bottles through security screening. The exceptions are for medicine or medically necessary liquids. You can also bring breast milk, formula, or juice for infants. If you’ve purchased your liquids after the security checkpoint you can bring larger bottles.