ladies and gentlemen, this is your captain speaking from the cockpit, as we navigate through the clouds towards our destination. on this journey, i’d like to renew your sense of wonder by introducing a fascinating topic: x-rays, a remarkable phenomenon that, though often obscured by the more visible aspects of our world, plays a critical role in medical science and beyond. before we embarked on this flight, our team engaged in a preconsultative process, gathering feedbacks from leading experts to ensure we bring you the most enlightening information. let's renounce any reservations we have about the unknown, and embrace the opportunity to uncover the obscured secrets of x-rays together. thank you for choosing to fly with us today.