Crystals, Lasers and the Human Body - John M. Thomas & David Phillips's 1987 Christmas Lectures 6/6
Laser technology is being used in medicine to investigate, diagnose and cure. David Phillips shows us the different uses of lasers on the human body.Watch all the lectures in this series here: https://www.youtube.com/playlist?list=PLbnrZHfNEDZw7s3y3S1IsaEmka5MWlaq9
Watch our newest Christmas lectures here: https://www.youtube.com/playlist?list=PLbnrZHfNEDZyQJZLPMjwEoOLdkFBLU2m1
This lecture was filmed at the Ri on Saturday 2nd January 1988.
--
In our final lecture, we highlight the significance of the occurrence of crystals in living matter. We also focus on the way lasers have contributed both to our understanding and treatment of many of the diseases that afflict human beings.
Crystalline arrangements of molecules are found in the living world not only in the normal healthy state of bones and muscles, tendons and teeth, but also in association with conditions such as gout, osteoarthritis and muscular diseases. One of the scientific challenges of the age is to design and rebuild human bones that may be used in hip-replacement operations.
Laser light can be piped via optical fibres into various parts of the body thereby affording unique insights into the mechanisms of a range of life processes as well as offering a means of curing hitherto intractable conditions. Lasers can be used as cutting tools; those that operate in the infrared are often employed for this purpose. More recently, ultraviolet lasers have been used to cause ‘ablation’ of tissue in which the surface, for example of a blood vessel, irradiated with such a laser disappears without any rise in temperature. This painless removal of tissue has great promise in medicine. By labelling some diseased tissue, notable that which is cancerous, with particular dyestuffs, selective destruction of this can be achieved using red lasers. This technique, known as photodynamic therapy (PDT) will be demonstrated. Other uses of light in medicine will be illustrated.
--
Crystals first appeared on earth many millions of years before the emergence of life. The first laser, however, based on a man-made crystal of ruby, was fashioned less than thirty years ago. Nowadays, crystals and lasers play crucial roles in the design of new materials, in the expanding world of communications, in medicine and environmental science and in the quest for better, cleaner forms of energy. They also function as the picot for a wide range of fundamental scientific studies.
In this series of six CHRISTMAS LECTURES, Professors John Meurig Thomas (1932-2020) and David Phillips (b.1939) explore the science and applications of crystals and lasers, reviving some of the key experiments from the history and evolution of physical sciences and exploring what the future might bring.
--
Join this channel to get access to perks:
https://www.youtube.com/channel/UCYeF244yNGuFefuFKqxIAXw/join
Subscribe for regular science videos: http://bit.ly/RiSubscRibe
The Ri is on Twitter: http://twitter.com/ri_science
and Facebook: http://www.facebook.com/royalinstitution
and TikTok: https://www.tiktok.com/@ri_science
Listen to the Ri podcast: https://podcasters.spotify.com/pod/show/ri-science-podcast
Donate to the RI and help us bring you more lectures: https://www.rigb.org/support-us/donate-ri
Our editorial policy: https://www.rigb.org/editing-ri-talks-and-moderating-comments
Subscribe for the latest science videos: http://bit.ly/RiNewsletter
Product links on this page may be affiliate links which means it won't cost you any extra but we may earn a small commission if you decide to purchase through the link. Receive SMS online on sms24.me
TubeReader video aggregator is a website that collects and organizes online videos from the YouTube source. Video aggregation is done for different purposes, and TubeReader take different approaches to achieve their purpose.
Our try to collect videos of high quality or interest for visitors to view; the collection may be made by editors or may be based on community votes.
Another method is to base the collection on those videos most viewed, either at the aggregator site or at various popular video hosting sites.
TubeReader site exists to allow users to collect their own sets of videos, for personal use as well as for browsing and viewing by others; TubeReader can develop online communities around video sharing.
Our site allow users to create a personalized video playlist, for personal use as well as for browsing and viewing by others.
@YouTubeReaderBot allows you to subscribe to Youtube channels.
By using @YouTubeReaderBot Bot you agree with YouTube Terms of Service.
Use the @YouTubeReaderBot telegram bot to be the first to be notified when new videos are released on your favorite channels.
Look for new videos or channels and share them with your friends.
You can start using our bot from this video, subscribe now to Crystals, Lasers and the Human Body - John M. Thomas & David Phillips's 1987 Christmas Lectures 6/6
What is YouTube?
YouTube is a free video sharing website that makes it easy to watch online videos. You can even create and upload your own videos to share with others. Originally created in 2005, YouTube is now one of the most popular sites on the Web, with visitors watching around 6 billion hours of video every month.
