Podcasts about very large

  • 24PODCASTS
  • 24EPISODES
  • 1h 6mAVG DURATION
  • 1MONTHLY NEW EPISODE
  • Mar 4, 2025LATEST

POPULARITY

20172018201920202021202220232024


Latest podcast episodes about very large

The HOT CHIX Podcast
S.2 Ep.2 - Hella Hot in Donelson TN - "An Interesting Bird"

The HOT CHIX Podcast

Play Episode Listen Later Mar 4, 2025 65:05


Welp… we're starting off this Second Season with an INTERESTING twist.Located in Donelson (near the Airport) we have Hella Hot Chicken, which has been here for about 8 Months.Insta: (@hella.hot.chicken)Located only a mere 8 minutes from The Airport exits, & about the same from the center(ish) of Donelson; The Donelson Hella Hot is in a great location. It appears that they do a GREAT DEAL of DoorDash & Uber Eats.First Off: We didn't get a picture with our friend Wes, but hot dang he helped us laugh throughout this entire meal. Wes, we love you, and are so thankful for you!Second: Hella Hot Donelson has a Very Large menu. We only tried our staples, and what we believed would be sleepers.Third: If you go, only get “Hella Hot” spice level. Trust Us.Fourth: Re-Read the 3rd Point, and swear by it.Hella Hot has an infamous reputation in the Hot Chicken community.Depending on who you speak to or which posts you read in online Hot Chicken Communities; you may hear different Perspectives of the food/operations. If you take a listen to our newest Episode, you'll see why this episode itself may go down in infamy.However, we actually had a few decent options such as the Tenders, the Super Thicc & Chonky Sandwich… Maybe even the Fries? They were solid.So make this (Semi) Spicy Pilgrimage to Hella Hot in Donelson and check out this week's episode of The HOT CHIX Podcast!Hella Hot Donelson - You can find them on on their socials at:Insta: instagram.com/hella.hot.chickenFacebook: www.facebook.com/profile.php?id=61561567394491Website: N/AAddress: 507 Donelson Pike, Nashville, TN 37214 News Channel 5 Article & Video:https://www.newschannel5.com/news/meet-the-two-buddies-who-turned-their-nashville-hot-chicken-passion-into-a-podcastCheck out our Social Media at:Facebook: facebook.com/profile.php?id=61556209613109Insta: @hotchixpodcastWebsite: www.hotchixpodcast.com (under construction)Email: hotchixpodcast@gmail.comHOT CHIX TEAM: Co-Hosts: Gregory Gillaspie & Alex Tinker IVPhotographer: Sydney Mullins Hot Chicken Historian: Mr. Sam Harrison(Upcoming) Merch: Jordin TinkerTheme Song: The 7 Deadly Sins (of Loving You) by Alex TinkerSingle from the album "Beehive Coke"Spotify: https://open.spotify.com/track/0s9f5lhgp4s3EWmdYFGhlb?si=b20d04d799614d10Available now on all streaming platforms.If you enjoy this podcast: Please share with your friends and leave a review! It really helps!

CQFD - La 1ere
Des vents extrêmes, une odeur de musée et un livre pour expliquer les odeurs

CQFD - La 1ere

Play Episode Listen Later Feb 2, 2025 55:42


1) Une exoplanète exposée à des vents incroyablement forts 33 000km/h, c'est la vitesse du vent sur la planète WASP-127b située à 500 années lumières de la Terre. C'est aussi le record de puissance d'un vent sur une planète. En comparaison, sur terre, le record a été enregistré en Australie avec 408km/h. La découverte de ce vent extrêmement fort sur cette planète lointaine a été réalisée grâce au Very Large telescope situé au Chili. Alexis Lavail, astrophysicien à l'institut de recherche en astrophysique et planétologie à Toulouse, nous éclaire sur le phénomène. Un sujet préparé par Bastien Confino. 2) L'odeur du Musée d'Art et d'Histoire Un musée a-t-il un parfum spécifique? Est-il possible de créer une odeur qui lui ressemble? C'est le défi que s'est lancé le Musée d'Art et d'Histoire à Genève et il a désormais sa propre signature olfactive. Une fragrance qui évoque notamment l'air vif de la bise ou les mystères du lac. Sarah Dirren recontre les différents protagonistes de cette belle aventure olfactive: Loic Bisceglie créateur de parfum chez DSM- Firmenich, senior Perfumer; Monica Sanchez directrice des évaluations parfum chez DSM- Firmenich; Romain Laneyrie, directeur principal du développement des affaires en innovation de dsm-firmenich; Isabelle Burkhalter responsable du secteur de la médiation culturelle au MAH. 3) Un livre pour expliquer les odeurs aux enfants Lorsquʹun éditeur dʹouvrages scientifiques se lance dans les livres pour enfants, cela donne "La petite boutique des odeurs", un petit livre joliment illustré et publié par Quanto Jeunesse. Une histoire poétique qui nʹoublie pas la science. Stéphane Délétroz reçoit Lucas Giossi, qui est à la fois lʹauteur et le directeur de la Fondation des presses polytechnique et universitaire romande.

One City Church
2024 Ep. 285 Shout Out: Believe Gods Report

One City Church

Play Episode Listen Later Nov 25, 2024 36:36


Numbers 13:25-28aAt the end of forty days they returned from spying out the land. 26 And they came to Moses and Aaron and to all the congregation of the people of Israel in the wilderness of Paran, at Kadesh. They brought back word to them and to all the congregation, and showed them the fruit of the land. 27 And they told him, “We came to the land to which you sent us. It flows with milk and honey, and this is its fruit. 28 HOWEVER, Numbers 13:28HOWEVER, the PEOPLE who dwell in the land are STRONG, and the CITIES are FORTIFIED and VERY LARGE. And besides, we saw the descendants of ANAK there.

Stan the Jokeman Show
I CANNOT BELIEVE WHAT CONTINUES TO TAKE PLACE IN OKLAHOMA!!!! WHAT IN THE HELL IS THE MATTER WITH SOME OF YOU FOLKS?!!!!!!! DAMN YOU!!!!!!!!!!

Stan the Jokeman Show

Play Episode Listen Later Jul 12, 2024 3:55


There is a VERY LARGE collection of complacent, ABSENT, don't give a shit to evolve at all Oklahomans that are about to drive me BAT SHIT CRAZY!WHATEVER YOU FUCKTARDS DO, DON'T SHARE A FUCKIN' THING!

The Megagame Assembly Podcast
Season 3 - Episode 2 - First Contact: 2035

The Megagame Assembly Podcast

Play Episode Listen Later Sep 13, 2022


In this Very Large episode, Harrison is joined by Matt, Tom and Zane who are three quarters of Very Large Huge Games, the group that ran the epic 200 player game First Contact in June 2022 in London. Together they run through some of the design challenges faced with such a massive game, as well as the issues they wrestled with in design and on the day. Very Large Huge Games websiteVery Large Huge Games on Facebook

first contact very large
Rounding Down with Chid
P-Town, Beltway Traffic, and Project Runway with Suity (@humanSuitecase)

Rounding Down with Chid

Play Episode Listen Later Jan 5, 2022 53:53


Looking for a podcast that has tough people but also bad people, look no further babyyyy. Have no fear Rounding Down is back in 2022 as if we had anything better to do!This week we're joined by a great friend and while he was a first time guest he most certainly won't be a last time guest. Suity (@humanSuitcase) is here to talk about a great many things!Provincetown is at the northern tip of Cape CHOD, Massachusetts. The seaside town is on the site of the Mayflower's landing in 1620, commemorated by the towering Pilgrim Monument and neighboring Provincetown Museum. P-town is known as a longtime haven for artists, lesbians and gay men. Numerous galleries plus restaurants, nightclubs, cabarets and specialty shops are clustered on and around lively Commercial Street per Google.What google fails to mention is the biggest tourist attraction of P-Town, the Dick Dock! Come on down to the Dick Dock while the gettin' is good!We get to talk Provincetown (P-Town for the locals), beltway traffic, Project Runway & Fashion Retail, Pies, and much much more!Plus we get to hear Sigh talk about his trips to P-Town as a child and his early sex education and the Synonym Song Singer stops by to give us his rendtion of 'Very Large' by a famous Massachusetts alt-rock group!If you miss this weeks ALL TIMER episode with Suity you really messed up! Follow Suity on Twitter:@humanSuitcaseSupport the show (https://cash.app/$roundingdown)

Fire Science Show
027 - Travelling fires with Guillermo Rein

Fire Science Show

Play Episode Listen Later Nov 17, 2021 65:57


If you have ever learned about the compartment fire dynamics framework, have tried zone modelling or any kind of fire modelling, you have probably noticed that as the compartments get bigger, the less uniform conditions inside are. At some size, the flashover or a "single-zone" model theories just break, MQH equation does not give a reasonable solution and the fire seems not capable of growing to a huge size... But yet, they destroy buildings. Local fire exposure may be damaging to structural elements in the same way as a flashover is. And that is how we considered it for many years...But there was a gap. Something between a localized fire and a flashover'd fire. For many years we've seen it, but we have not acknowledged it fully untill it was given a name - the Travelling Fire. In today's episode, I have invited prof. Guillermo Rein of Imperial College London, to tell us the origin story, recent developments and future plans related to this methodology. This should be interesting to all - from fire scientists to engineers.  IMHO, a well invested hour of your time!Make sure to connect with Guillermo on socials:- Twitter- LinkedInand with his group - Imperial Hazelab (also on Twitter).Guillermo has published 200 research papers, and among them many landmark pieces on travelling fires that I recommend:Travelling fires for structural design (2012) with J. Stern-GottfriedImproved formulation of Travelling Fires (2015) with E. Rackauskaite et al.Improved Travelling Fire Methodology - iTFM (2017) with E. RackauskaiteComputational analysis of thermal and structural failure criteria of a multi-storey steel frame exposed to fire (2019) with E. Rackauskaite et al.Flame extension and the near field under the ceiling for travelling fires inside large compartments (2020) with M. Heidari et al. Fire Experiment Inside a Very Large and Open-Plan Compartment: x-ONE (2021) with E. Rackauskaite et al. Thermal Response of Timber Slabs Exposed to Travelling Fires and Traditional Design Fires (2021) with F. Richter et al.and some many more... You may also be interested in the relevant PhD thesis:- Jamie Stern-Gottfried (2011)- Egle Rackauskaite (2017)And some other work related to travelling fires carried across the world:RK Janardhan and S Hostikka When the fire is spreading and when it travels? X Dai et. al. Extended Travelling Fire MethodologyD Hopkin Testing the single zone structural fire design hypothesisC Maluk Energy distribution analysis in full-scale open floor plan enclosure fires

PACD
The GREAT Supply Chain Disruption

PACD

Play Episode Listen Later Nov 5, 2021 54:40


The VERY LARGE supply chain DISARRAY causes Chapo Trap House DSA libs to mock regular Americans... There's much more to it, though.

500 Section Lounge
E84: Jeff Rasley Climbs Up Into the Lounge!

500 Section Lounge

Play Episode Listen Later May 18, 2021 79:34


This week is YET ANOTHER great conversation that could've gone on for hours! Jeff Rasley (pronounced RACE-lee), came into the Lounge and just dropped SO MANY stories onto the guys! Author of, "You Have to Get Lost Before You Can Be Found: A Memoir of Suffering, Grit, and Love of the Himalayas and Basa Village," Jeff is LOADED to the gills with things to talk about!Jeff, once the head of a small law firm, decided he was going to quit practicing and start a not-for-profit organization to help a tribe in the Himalayas! After visiting a few different times, Jeff fell in love with the area and decided that he would use his know-how to raise money to allow the Basa Village people to build necessities for life! He tells great stories of he came about to doing this, along with great stories that made him fall for the village and make helping them his life work!The guys bring up some of his other books, including the fictional story about the 1969 University of Chicago football team, and how they were going through so much more than just playing a football season! Jeff also pulls some off HIS OWN experience of being a member of the UC football team!Little Matt brings up another of Jeff's books that recalls the stories of close encounters with VERY LARGE sea mammals! BOTH stories are incredible! There is so much more, but it would take FOREVER for you to read it, so the guys suggest sitting back, relaxing, and go #grabalisten!Check out all of Jeff's books at https://www.amazon.com/Jeff-Rasley/e/B004Q3D6B2?ref=sr_ntt_srch_lnk_9&qid=1621304903&sr=8-9ALSO, go to http://www.jeffreyrasley.com/ to see what all Jeff is up to!

Anong Kuwento Natin?
Episode 16: Tungkol sa Pera

Anong Kuwento Natin?

Play Episode Listen Later Dec 6, 2020 65:30


Tampok sa talakayan dito tungkol sa pera ang nobelang Pinaglahuan (1907) ni Faustino S. Aguilar at maikling kuwentong “Some Families, Very Large” (2001) ni Jose Y. Dalisay, Jr.

Brooklyn, USA
31 | Something I Never Thought I’d See | -19,'20

Brooklyn, USA

Play Episode Listen Later Jun 8, 2020 90:07


This week we’re comin’ straight from the underground. • Brooklyn, USA is produced by Sachar Mathias, Emily Boghossian, Shirin Barghi, Charlie Hoxie, Khyriel Palmer, Ross Tuttle, and Mayumi Sato • “It Just All Feels Wrong” was produced by Sachar Mathias, Shirin Barghi and Ross Tuttle • “Different Parts of Life” was produced by Khyriel Palmer • “A Dot On A Map” was produced by Emily Boghossian • Very Old, Very Large, Complex” was produced by Sriyanka Ray • “Weekend Weather with Junior Meteorologist Griff City” was produced by Emily Boghossian, Taylor Cook, and Lauren Germain • Thank you to Patricia, Kenshasa, Florence and Collete for all they shared with us at the Brooklyn Free Speech Community Producer Watercooler • Brooklyn, USA’s “Messages From Over Here” are produced by Voltron. If you have something to say and want us to share it, call us at (917) 719-0021 or check out our handy guide on how to send us a message: https://bit.ly/2Z3pfaW • Read the episode transcript here: bricartsmedia.org/Brooklyn-USA • See what you’ve been missing on BRIC x HOME: https://bit.ly/2WV72tq • Learn a new skill in one of BRIC’s Online Media Education Courses: https://bit.ly/2WAd43v • Donate to BRIC’s Creative Future Relief Fund: https://bit.ly/2LzRtlM • Follow us on Twitter and Intagram @BRICtv • bricartsmedia.org/Brooklyn-USA •

united states home complex voltron bric d see very large brooklyn usa sachar mathias emily boghossian khyriel palmer
The Parish Counsel
The Parish Counsel - Episode 444

The Parish Counsel

Play Episode Listen Later Mar 8, 2020 47:19


Juliet and Terence with the VERY LARGE quiz; when are you too old to 'rock 'n' roll'?; and - can bands ever survive a change of singer? Plus four stupendous tracks of music.

Heart of Dating
MINISERIES: A Guide to the Beginning of Dating

Heart of Dating

Play Episode Listen Later Jan 10, 2020 14:08


Hey friends and welcome to our brand new MINISERIES: Navigating The Beginning Stages of Dating! Today y’all voted on instagram and by VERY LARGE majority you guys voted to have us cover this topic. So we are kicking off this miniseries today talking about what Stage 1 Dating really is, as well as some best practices/ guidelines to keep in mind for these beginning stages. In today's episode we discuss the following: -What is stage 1 dating? -How we can and should take the pressure off -How to create a new framework for dating -General guidelines for a first date -How to actually ENJOY and have FUN in this stage of dating Also, we want to share with you that we are able to do these miniseries because of our amazing sponsor, Faithful Counseling. Faithful Counseling is a faith based online therapy network that falls under the incredible BetterHelp umbrella. We are HUGE fans of therapy, but especially love therapy that incorporates Christian principles, prayer, and spiritual practices. If you're looking for an affordable Christian therapist that covers a specific expertise, and even want to do therapy from the comfort of your home, we highly recommend you check out Faithful Counseling. And For Heart of Dating listeners, you can get 10% off your first month by going to https://getfaithful.com/heartofdating !

Power Playthrough
Episode 40 - Madam Swampy is Juggalo Adjacent

Power Playthrough

Play Episode Listen Later Dec 10, 2018 90:45


Does Tommy dictate his letters outloud? Is Curtis the coolest dude in a Jazz Band, Is Jason Heartbroken about Tommy losing his power, And Does Kimberly carry around a strange Very Large ornate Mirror? answers to these questions and more on Power Playthrough.Episodes CoveredEpisode 74- Missing GreenEpisode 75- Orchestral Movements in the ParkEpisode 76- Beauty and the Beast For More Info Please Visit Mammoth-king.comFor Merchandise - Mammoth-king.com/merchIf you like our show and think we deserve a little something extra head over to Patreon.com/powerplaythroughThanks to Rayner for the use of our theme song head over to Rayner.bandcamp.com to support them --- This episode is sponsored by · Anchor: The easiest way to make a podcast. https://anchor.fm/app Support this podcast: https://anchor.fm/power-playthrough/support

Harvest Eating Podcast-Plant Based Vegan Recipes
391-Spices, Gardens and Smoked Tomato Soup

Harvest Eating Podcast-Plant Based Vegan Recipes

Play Episode Listen Later Jun 4, 2018 53:40


On today's episode, we cover quite a few things. I give an overview of the spices, where I'm at now, plans for the future, spice vendors etc. I have been mixing, blending, testing spices since 1992. Having worked with many vendors and having screwed up many blends has allowed me to become somewhat of a spice ninja. I have always looked at the spices like a side venture, more of a favor for the fans than a business for me. Sure I make some jingle...but it's always been done out of duty rather than pure business. I have realized that this is stupid. Not the way to conduct business. I was interviewed recently on a VERY LARGE business podcast and the subject of spices came up. The host, being very shrewd yet honorable businessman said: "you have a lot of low hanging fruit" which is marketing speak for many things I could be doing to improve my business, my sales, and my profits. He mentioned that I should be offering free samples to create more customers, setting up marketing automation to provide my customers more ways to engage with me and offering more products, more content etc. I have undertaken that already and shipped over 100 free samples in 48 hours with a simple Facebook post. I am excited to create more content and usage videos as many spice customers are not sure the best way to use my spices and honestly, I have left them out to dry. Also, I discuss my miserable garden this year. Everything is dying and yield is non-existent. Maybe you can learn from my failure. I give a fun fact of the day; that I was the celebrity chef on a cruise ship in 2009. I discuss throwing up on a formal night and how much of a drag that was. Lastly, I briefly talk about a cold smoked tomato soup. Perfect for a BBQ, picnic, special dinner etc. Very tasty with the addition of smoked paprika. Check out this version of the soup, then add some smoked paprika to it.  

Let's Go Tribe: for Cleveland Indians fans

In this week’s episode of Let’s Talk Tribe, Yandy Diaz is still Very Large, Carlos Santana in right field, pitcher worries (or lack thereof), a White Sox preview with Josh Nelson, your questions, and more! Subscribe to Let’s Talk Tribe on iTunes ? http://apple.co/2fYLhSF Subscribe to Let's Go Tribe on YouTube ? http://bit.ly/2h3anEF Subscribe to Let's Go Tribe on Twitch ? http://bit.ly/2hzWf4Z Follow Let’s Go Tribe on Facebook ? http://bit.ly/2g6bI8p Follow Let’s Go Tribe on Twitter ? http://bit.ly/2gYObYH See more at letsgotribe.com. Learn more about your ad choices. Visit megaphone.fm/adchoices

Covering the Corner: for Cleveland Guardians fans

In this week's episode of Let's Talk Tribe, Yandy Diaz is still Very Large, Carlos Santana in right field, pitcher worries (or lack thereof), a White Sox preview with Josh Nelson, your questions, and more! Subscribe to Let's Talk Tribe on iTunes ? http://apple.co/2fYLhSF Subscribe to Let's Go Tribe on YouTube ? http://bit.ly/2h3anEF Subscribe to Let's Go Tribe on Twitch ? http://bit.ly/2hzWf4Z Follow Let's Go Tribe on Facebook ? http://bit.ly/2g6bI8p Follow Let's Go Tribe on Twitter ? http://bit.ly/2gYObYH See more at letsgotribe.com. Learn more about your ad choices. Visit podcastchoices.com/adchoices

Inspire Nation Show with Michael Sandler
HOW TO FEEL BETTER, EAT BETTER & HELP TO SAVE THE PLANET THE FARM SANCTUARY WAY! Gene Baur | Vegan | Vegetarian | Self-Help

Inspire Nation Show with Michael Sandler

Play Episode Listen Later Mar 25, 2016 54:01


If you love animals, pets, the furry ones, or the scurry ones, or simple enjoy time in nature, watching the birds, or the deer and the antelope roam, then do we have the show for you! Today we'll be talking with Gene Baur, animal activist and co-creator of the Farm Sanctuary and author of Living the Farm Sanctuary Life: The Ultimate Guide to Eating Mindfully, Living Longer, and Feeling Better Every Day. Today we'll talk about the Farm Sanctuary, and the lives of farm animals, plus how to live and eat more humanely and why sheep, cows, pigs and goats, may all make great pets…as long as you have a VERY LARGE back yard! That plus we'll talk about Hilda, Jelly Bean, Hope the Pig, Bob Comis's runt, Snowie and Shotzie, Opie the cow, and the love of Susie's life, Larry the 3000 pound cow. Questions and Topics Include: What's the story behind Hilda, and how did Farm Sanctuary start? What is the rendering industry? What happens to farm animals that pass away? How they saved Hilda Who was Jelly Bean? How did Farm Sanctuary get started? Watkins Glen Orland California Near Los Angeles Opening one with John and Tracy Steward in New Jersey How are cows different than cats and dogs? What can people do to source meat humanely? Why even free range, organic chickens are de-beaked Can a chicken be a lap animal and make a sound like a purr? Who was Hope the pig? Michael's experience volunteering on a dairy farm What happens to ‘humanely' treated cows on a large dairy farm Bob Comis, the humane pig farmer and the runt that changed his life What are a few small steps people can make to change our eating habits just a little What is Meatless Monday? What's the eco footprint of eating meat Why you could feed 10 people on a vegie diet for the resources it takes to feed 1 person on a meat diet What the organic term with meat really means Can you have a pet goat? Can you adopt a farm animal? Why it's true that sheep need to be sheared each year Is there such a thing as ‘scrap leather' that manufacturers use? The story of a pig named Julia Who was Larry, the 3000 pound cow who was the ‘love of Suzy's life' Who was Opie the calf? How do you humanely feed cats? farmsanctuary.org Gene Baur Shares Heart-Warming Stories of Rescued Farm Animals & How We Can All Eat Better, Shop More Humanely & Help Save the Planet By Living the Farm Sanctuary Way. Inspiration | Motivation | Vegetarian | Vegan | Diet | Self-Help | Inspire For More Info Visit: www.InspireNationShow.com

The Gutter Skypes
Session 131 - Starships and Spacemen!

The Gutter Skypes

Play Episode Listen Later Mar 2, 2014 252:00


Episode 131 - Starships and Spacemen! Mark Kinney battles through Gutter Skypes Wildness and a MASSIVELY MALEVOLENT Skype connection to lead us triumphantly into our first play session of STARSHIPS AND SPACEMEN! A Game that originated in 1978 and has been described as "Star Trek" with the serial numbers filed off. You will find this to be another Very Large audio instalment because two evenings were combined to create it. The Very first part includes Listener feedback, and pre-character creation banter. Audio of the Character creation is skipped this time around and we go to the next session - more Listener Feedback and Pre-Game banter.. then GAME PLAY! Yes! Actual Gameplay in a Gutter Skypes episode! ( As the kids say..."LOLZ" ) As always, with File lengths this big...you are warned to take small bites and to wait at least one hour after you're done listening before going swimming.

Convert to Raid Presents: The podcast for World of Warcraft and other Blizzard Games!

The guys are back in the saddle for another hilarious ride through the current state of WoW.  Blizzard introduces some new and epic items coming to the store, but where will they draw the line, and what does this mean for players in the US and EU?  The PTR is in full testing mode, including most of the raid bosses and a lot of VERY LARGE class changes that you may want to pay attention to.  Also, they get through a bunch of listener questions about the end of this expansion, monk dps and more.  Also... Zhug can't find the right words, Dairies returns home, and Koltrane is twerkin' it!  Put your hands on your hips and listen up to another great show!

CosPod: The Cosplay Podcast
Episode 22: CosPod Fabric Hunt

CosPod: The Cosplay Podcast

Play Episode Listen Later Nov 4, 2012 43:18


Amber and Val visit Golden D'Or, a VERY LARGE fabric distribution center in Dallas. Hijinks ensue.

CosPod: The Cosplay Podcast
Episode 22: CosPod Fabric Hunt

CosPod: The Cosplay Podcast

Play Episode Listen Later Nov 4, 2012 43:18


Amber and Val visit Golden D'Or, a VERY LARGE fabric distribution center in Dallas. Hijinks ensue.

Fakultät für Physik - Digitale Hochschulschriften der LMU - Teil 04/05
The GRAVITY interferometer and the Milky Way’s nuclear star cluster

Fakultät für Physik - Digitale Hochschulschriften der LMU - Teil 04/05

Play Episode Listen Later Jul 17, 2012


This thesis is divided into two parts: an instrumentation part and an astrophysical part. The instrumentation part describes the development and implementation of the fiber coupler and guiding subsystems of the 2nd generation VLTI instrument GRAVITY. The astrophysical part describes the derivation of the star formation history of the Milky Way’s nuclear star cluster based on imaging and spectroscopic data obtained at the Very Large Telescope. The future VLTI instrument GRAVITY will deliver micro-arcsecond astrometry, using the interferometric combination of four telescopes. The instrument is a joint project of several European institutes lead by the Max Planck Institut f¨ur extraterrestrische Physik. The instrumental part of this thesis describes the fiber coupler unit and the guiding system. They serve for beam stabilization and light injection in GRAVITY. In order to deliver micro-arcsecond astrometry, GRAVITY requires an unprecedented stability of the VLTI optical train. We therefore developed a dedicated guiding system, correcting the longitudinal and lateral pupil wanderas well as the image jitter in VLTI tunnel. The actuators for the correction are provided by four fiber coupler units located in the GRAVITY cryostat. Each fiber coupler picks the light of one telescope and stabilizes the beam. Furthermore each unit provides field de-rotation, polarization adjustment as well as atmospheric piston correction. A novel roof-prism design offers the possibility of on-axis as well as off-axis fringe tracking. Finally the stabilized beam is injected with minimized losses into singlemode fibers via parabolic mirrors. We present lab results of the first guiding- as well as the first fiber coupler prototype, in particular the closed loop performance and the optical quality. Based on the lab results we derive the on-sky performance of the systems and the implications concerning the sensitivity of GRAVITY. The astrophysical part of this thesis presents imaging and integral field spectroscopy data for 450 cool giant stars within 1 pc from Sgr A*. We use the prominent CO bandheads to derive effective temperatures of individual giants. Additionally we present the deepest spectroscopic observation of the Galactic Center so far, probing the number of B9/A0 main sequence stars (2.2 − 2.8M) in two deep fields. From spectro-photometry we construct a Hertzsprung-Russell diagram of the red giant population and fit the observed diagram with model populations to derive the star formation history of the nuclear cluster. We find that (1) the average nuclear star-formation rate dropped from an initial maximum 10Gyrs ago to a deep minimum 1-2Gyrs ago and increased again during the last few hundred Myrs, and (2) that roughly 80% of the stellar mass formed more than 5Gyrs ago; (3) mass estimates within R 1 pc from Sgr A* favor a dominant star formation mode with a normal Chabrier/Kroupa initial mass function for the majority of the past star formation in the Galactic Center. The bulk stellar mass seems to have formed under conditions significantly different from the observed young stellar disks, perhaps because at the time of the formation of the nuclear cluster the massive black hole and its sphere of influence was much smaller than today.

Long Now: Seminars About Long-term Thinking
Spencer Beebe: Very Long-term Very Large-scale Biomimicry

Long Now: Seminars About Long-term Thinking

Play Episode Listen Later Mar 12, 2005 75:39


Spencer Beebe, founder of Ecotrust, is giving the next Seminar About Long-term Thinking lecture, titled "Very Long-term Very Large-scale Biomimicry"---how to prosper with bio-regional economics over centuries. Friday, March 11, 7pm, Fort Mason Conference Center, San Francisco.