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.
Only around 180 impact craters have ever been discovered on Earth and around 30 per cent of them contain important natural resources of minerals or oil and gas. The largest and oldest known crater prior to this study, the 300 kilometre wide Vredefort crater in South Africa, is 2 billion years in age and heavily eroded.
The biggest attraction is the crater called âEl BoquerÃ³nâ (wide mouth) which is 5 kilometers in diameter and 558 meters deep. What is so interesting that there is a smaller crater called âel boqueroncitoâ (small mouth) created after the last volcanic eruption in 1917. Reaching it is quite a challenge but a great workout! Hiking and nature lovers, this oneâs for you! There are many trails leading to the âgiganteâ, the giant crater.