The MythBusters The MythBusters

MythBusters Episode 54: Crimes and Myth-Demeanors 1: Great Hollywood Heists

Premier Date: July 12, 2006

One can surreptitiously scale an air duct by using a system of magnets.

busted

Jamie’s magnets (ten 500-pound (225 kg) strength ones) could hold his weight and allowed him to make it to the top of the duct, but they caused far too much noise on the way up to allow for a stealthy entrance.

One can surreptitiously scale an air duct by using a system of suction cups.

busted

Adam’s suction cups were able to hold his weight as well and were much quieter than Jamie’s magnets. However, the mechanics Adam used to control the vacuums often failed, which caused him to slip and fall down the vent, blowing his cover. He did however make it to the top of the vent once he perfected the method of operating the device in sequence to his steps up the vent. However, breaking through the grate of the air duct was much too noisy, thus blowing his cover.

One can successfully dodge a system of laser beam detectors by blowing cosmetic powder across the beams to identify their position.

busted

While visible beams can be seen, they are only detectable when the powder is airborne, which is not very long. Also, blowing too much powder can cause enough of the beam to break and set off the alarm. Furthermore, most laser systems use invisible infrared laser trip beams.

One can successfully dodge a system of laser beam detectors by using night vision goggles.

busted

None of the beams are visible through the goggles, though a combination of the goggles and the powder was able to allow Tory a brief glimpse of the infrared beams, though not enough to make a difference. Also, wearing night vision goggles decreases the wearer’s field of view and may hinder one’s ability to move around the beams.

One can successfully dodge a system of laser beam detectors by pointing another laser at the photodetector.

busted

While the technique is workable enough with visible-beam systems, the fact that infrared beams cannot be readily detected or traced makes locating the relevant photocells too difficult in a real-world situation.

A glass door can be cut open silently by gently cutting the glass and removing it with a suction cup.

busted

The suction cup could not remove the glass.

A glass door can be cut open silently by drilling a hole.

plausible

The drilling caused some noise, but not enough to trip a sonic alarm. It did, however, cause the entire glass to break, but because it was tempered and laminated, the glass held together. The broken pieces were then pried out until an arm-sized hole could open up, allowing access to the doorknob on the other side.

One can successfully fool a pressure sensor under a glass case by squeezing in a knife between the glass and sensor and using a piece of gum to hold the sensor in its original position.

busted

The sensor is extremely sensitive. Even the slight lifting of the case needed to insert the knife can set it off, and it took three attempts just to get the knife in. And the gum is just too pliable when chewed to keep the sensor held down once the knife is removed.

One can successfully fool a pressure sensor under a glass case by squeezing in a knife between the glass and sensor and using tape to hold it in place.

plausible

If you can get the knife in without setting the sensor off, you can hold the knife in place with the tape to keep the sensor pressed.

A safe can be quickly cracked by using a stethoscope.

busted

Modern safes are designed with this old technique in mind, and the tumblers proved too quiet to be heard even with amplification.

A safe can be quickly cracked by drilling a hole and visually causing the tumblers to fall into place.

plausible

With help from a borescope and a length of piano wire, Adam managed to crack the safe, but it would take time that may not be available to a surreptitious safecracker, especially given the fact that the safe for the test was rated to be crackable by a professional safecracker in only 5 minutes.

A suction cup system can be used to scale a (23-story) skyscraper.

plausible

The concept worked but Adam did not have the stamina to scale the entire building. Making the climb would require significant physical training.