got about three different layers on top and bottom right now so as prepared as they can be. and. this is good heard. everyone needs to get here and watch your experiments to newton's to get to illustrate the effects of extreme cold chicago based reporter through a couple of boiled water in the air. the water froze almost instantly and fell back down as snow. temperatures this far below freezing can also have drastic effects on people the homeless are at particular risk cities across the midwest have opened warming centers including police stations and roving buses for anyone seeking shelter from the cold the bone chilling weather has caused more than two thousand flight cancellations school and office closures transit delays and multi-car pileups on slippery roads even the u.s. postal service whose unofficial motto takes pride in all weather work has halted.