Continuous positive airway pressure (CPAP) machines are used to maintain an open airway in patients diagnosed with obstructive sleep apnea. The machine functions by blowing pressurized air into the airway via mask at a setting determined by sleep study and prescribed by a physician.
Also the second largest impact structure on Earth, the 1.85 billion years old Sudbury crater in Canada, hosts world-class mineral deposits - in this case nickel-rich minerals that were melted and concentrated by the extreme heating caused by the impact.
This massive object will cause tsunamis, earthquakes and obliterate natural daylight for yearsâ¦ Ohâ¦ and it will kill you. Similar asteroid impacts have happened and will happen on numerous occasions in our earthâs history. Today weâll show you the biggest impact craters by diameter.