He has been nominated twice for the main Edinburgh Comedy award, winning it on the second occasion. Mark is a TV and radio regular, appearing on nearly all panel shows around; Have I Got News for You, 8 Out of 10 Cats, Would I Lie to You, along with celebrity editions of Mastermind and Pointless.
The shelf life of dry ice depends mainly on how the dry ice is stored and the size of the brick. Dry ice is frozen carbon dioxide, the same gas that we exhale and that plants use for photosynthesis. It is never a liquid, it goes from a -109.3Â°F solid state directly into the gas stage. Because of these properties, dry ice enjoys most of its popularity at Halloween for making a fabulous witch's brew.
Buy dry ice in block form. Performing school experiments and creating fog effects both require blocks of dry ice. 1  Dry ice also comes in pellet form but is mainly used for dry ice blasting to clean surfaces, or for medical transportation. 2  The price of dry ice ranges anywhere from $1.00 to $3.00 per pound. Plan to pick up dry ice as close to the time you will need it as possible. 2  Since it is constantly changing from solid to gas, it has a very short shelf-life. 3  Every 24 hours, 5-10 pounds of dry ice turns from a solid to a gas.