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    Science & Medicine

    omega tau science & engineering podcast

    Wissenschaft und Technik im Kopfhoerer / Science and Engineering in your Headphones

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    Latest Episodes:
    335 - Spiegelherstellung für Teleskope bei Schott Jan 29, 2020
    Show notes

    Gast: Thomas Westerhoff Host: Markus Völter Shownoter: Kolja Dummann

    Vor über fünf Jahren hatten wir in Episode 150 über das ELT berichtet, ein gerade im Bau befindliches 39 m Teleskop mit einem Spiegel aus 798 Segmenten. In dieser Episode sprechen wir mit Thomas Westerhoff von Schott über den Herstellungsprozess dieser (und anderer) Spiegel für die Astronomie, und das dafür verwendete Material, Zerodur. Zusammen mit den nächsten Ausgabe zur Steuerung des ELT sind habe ich diese Episode auch deshalb gemacht, weil sie Teil des Buches sein wird.

    Alle Bilder (c) Schott AG

    Einführung und Vorstellung

    00:01:40

    Calar-Alto-Observatorium | Max-Planck-Institut für Astronomie | Stepper (Wafer-Stepper) | Amorphes Material | Sonnenteleskop | Large Binocular Telescope (omgea tau 111 – Optical Astronomy and the Large Binocular Telescope) | Interferometrie | Permeation

    Zerodur im ELT

    00:19:15

    Zerodur | European Extremely Large Telescope

    Produktion der Spiegel

    00:23:53

    Gran Telescopio Canarias | Flusssäure | Zerspanen | CNC-Maschine | Drehscheibe | Cittert-Zernike Theorem

    Spiegel Positionierung

    00:45:28

    Weitere Spiegel im ELT

    00:48:38

    Aufbau des ELT

    Gläser bei Schott

    00:59:30

    Vom Rohstoff zum Glas

    01:02:47

    334 - Kriminaltechnik beim LKA Baden-Württemberg Jan 14, 2020
    Show notes

    Gast: Hagen Gunzenhauser, Volker Schäfer, Rasmus Förster Host: Markus Völter
    Shownoter: Jochen Spalding

    Im November habe ich das Landeskriminalamt Baden-Württemberg in Stuttgart besucht um mich dort zu Kriminaltechnik schlau zu machen. Nach einer kurzen Einführung zu den Aufgaben des LKA haben wir drei Themen genauer betrachtet: Daktyloskopie (mit Hagen Gunzenhauser), Waffen und Ballistik (mit Volker Schäfer) sowie DNA Analysen (mit Rasmus Förster).

    Hagen Gunzenhauser / LKA Stuttgart

    00:02:16

    Daktyloskopie | LKA Longhorn Stuttgart | Landeskriminalamt Stuttgart | Kri­mi­nal­tech­ni­sches Institut | Genetischer Fingerabdruck | Kriminaltechnisches Institut BW Jahresbericht 2016 | 3-D-Tatortvermessung (Virtual Reality - Virtuelle Realität) | Schutzpolizei | Kriminalpolizei

    Daktyloskopie

    00:16:57

    Papillarkörper | Talgdrüse | Aminosäuren | Ninhydrin | Ninhydrin-Reaktion zum Nachweis von Aminosäuren | Cyanacrylate | Forensik

    Volker Schäfer / Waffen und Munition

    00:45:06

    Volker Schäfer | Sachverständiger | Selbstladewaffe | Repetierwaffe | Treibladung | Waffenbesitzkarte | Beschussprüfung | Schmauch | Rauchschwache Pulver | Ballistik

    Rasmus Förster / Molekularbiologie

    01:28:49

    Molekularbiologie | DNA-Analyse | Genom | DNA-Sequenzierung | Elektrophorese | Elektropherogramm | Primer | Polymerase-Kettenreaktion | Bewertung von DNA-Mischspuren


    333 - (Flying and Simulating) The F-14 Tomcat Jan 03, 2020
    Show notes

    Guests: Nick Pirnia, Okie Nance, the Heatblur development team
    Host: Markus Voelter Shownoter: Alexander Grote

    The F-14 Tomcat is one of the most iconic fighters, certainly among its generation. In this episode we talk with Nick Pirnia about the aircraft’s development and history as well as about flying it with former pilot Okie Nance. The aircraft is also available in the DCS flight simulator and the third part of this episode is a conversation with the development team from Heatblur about how to implement the F-14 in DCS; if you haven’t yet, check out some of their videos, this thing looks unbelievably realistic!

    The F14 Program

    00:03:14

    F-14 Tomcat | Skynight | F-111 | Swing Wing | Phantom | F-22 | Fire and Forget | Phoenix Missle | Amaraam | Spoiler | Flaps | A-7 | F-18 Hornet | M61 Vulcan | Pratt & Whitney TF30 | GE 110 | TARP | ROVER | A-6 | Echelon | Latirn POD | AN/AWG-9

    Flying the F14

    01:13:36

    Fly by Wire | Yaw Divergance | Flat Spin | Engine Stall | Afterburner | Glove Vane | Direct Lift Control | RIO

    Heatblur DCS F-14 Simulator

    02:33:31

    Heatblur Studio (F14 Manual) | Digital Combat Simulator | Wikipedia Article for DCS | Open Source Flightmodelling | Nasa Overview for Flight Modelling | Avionics | F-14 Flight Manuals | Angle of attack | Dynamics of Flight | Jet wash | Wing vortices | Center of Gravity | Wake Turbulence | Computational fluid dynamics | Look up Table | Ground effect | Stagnation temperature | C++ | Compressor Stall | Emergency Checklist | Central Air Data Computer | Radar Equations | Ground Clutter | Missle Guidance | INS | IMU | Datalink | RWR | Behavioral tree | Topgun :) | DCS F-14 Trailer


    332 - Attribution of Extreme Weather Events Dec 22, 2019
    Show notes

    Guests: Friederike Otto Host: Markus Voelter Shownoter: Thomas Machowinski

    An important consequence of the warming of the planet due to climate change is that the frequency and/or severity of extreme weather events will increase. But how can we tell whether a particular event can be attributed to the changing climate? Would it have happened in “normal” climate as well, and if so, how would the event have been different? This aspect of climate science is called attribution science, and the guest of this episode, Friederike Otto is a pioneer in the field.

    Introduction

    00:05:28

    Environental Change Institute | Global Warming | Attribution Science | Extreme Weather | Heat Stress | Drought | Hurricane

    Attribution

    00:18:04

    Climate Models | Greenhouse Gas | Probability | Aerosol | Heat Island

    Simulation Approaches

    00:44:13

    weather@home | ECMWF

    Development of Attribution Science

    01:04:49

    Bias


    331 - Samanthas Lange Reise Dec 12, 2019
    Show notes

    Gast: Samantha Cristoforetti Host: Markus Völter Shownoter: Alexander Grote

    Als italienische ESA Astronautin war Samantha Cristoforetti von November 2014 bis Juni 2015 für 200 Tage auf der Internationalen Raumstation. In ihrem neuen Buch erzählt Samantha über ihre Ausbildung zur Astronautin und schildert einige Ihrer Eindrücke auf der Mission. Einen kleinen Teil davon erzählt sie uns in dieser Episode.

    Vorstellung Samantha Cristoforetti

    00:01:43

    Samantha Cristoforetti | Samanthas Buch | Samanthas Seite bei der ESA

    Der Weg zur Astronautin und Grundausbildung

    00:04:41

    Flugtauglichkeitszeugnis | ESA | Italienische Luftwaffe | KampfpilotIn | Astronautenzentrum Köln | Nasa | ISS | Weltraumspaziergang (EVA, extra-vehicular activity) | Raumanzug | Buoyance Center | Parabelflug | Sternenstädtchen | Juri Gagarin | Walentina Tereschkowa | Edwards Airforce Base | OmegaTau | OmegaTau | Überlebenstraining | Sojus | Sojus Training

    Missionstraining

    00:30:20

    ISS Infrastruktur | Absorptionskälte | Baikonur

    Start

    00:36:43

    Sojus Rakete | Raketentriebwerk | Raketenstart | Telemetrie | Mehrstufige Rakete | Astronautennahrung | Boldface | Gateway


    330 - Parabolic Flights at AirZeroG Nov 29, 2019
    Show notes

    Guests: Jean-François Clervoy, Eric Delesalle, Hervé Normand, Nicolas Barbotin
    Host: Markus Voelter Shownoter: Andy Joiner

    When I was in Bordeaux with the DLR to report about their science campaign in September, I also talked to the team from AirZeroG/Novespace about the technical and aviation aspects of parabolic flights. These interviews are in this episode. I chat with Jean-François Clervoy about the history of the company, with Eric Delesalle about piloting the parabolas, with Hervé Normand about the reasons for the potential sickness, and with Nicolas Barbotin about cabin safety. At the end of the episode I also provide some details about the technical problem that prevented parabolas during my own flight with the A-310 ZeroG.

    Overview of Novespace

    00:02:02

    Jean-François Clervoy | Atlantis | Discovery | European Space Agency (ESA) | ISS Resupply Ship | Novespace | Airbus A310 | Air Zero-G | Flight Test Engineer | Parabolic Flight | Attitude | Velocity | Initial G | Pitch Angle | Ballistic | Alpha Jet | Mirage 2000 | Caravelle | DLR | NASA | ATV Resupply Ship | Fly-by-wire | Maneuver Margin | Limit Margin | Indicated Velocity | Airbus 300B | Airbus A310 | Supercritical | Trim | Accelerometers | Big City Beats Concert

    Aircraft and Flying

    00:23:38

    Eric Delesalle | Experimental Test Pilot | ATR 42 | Flight Engineer | Basic Law | Range -0.5 to +2.5 G | Target -0.05 to +0.05 G | Angle of Attack | Orbit | Elevator | Ground Control | Buffet Zone | Injection | Hydraulic Control (Episode 324 – Air Traffic Control at Heathrow and RIAT) | Preventive Maintenance

    Medical Aspects

    00:57:22

    Hervé Normand | Professor of Physiology | Université de Caen | Functional Testing | Cardiovascular Deconditioning | Vestibular System | Semicircular Canals | Position of head | Hypergravity | Intracranial Pressure | Scopolamine

    Safety

    01:07:34

    Nicolas Barbotin | Chief of Safety (Episode 251 – Flying the F-16 Viper) | Loadmaster | Weight imbalance | Flight Envelope

    Markus Experience in Bordeaux

    01:23:45

    329 - Forschung in Schwerelosigkeit - DLR Parabelflüge Nov 25, 2019
    Show notes

    Gast: Katrin Stang, Andreas Meyer, Christoph Egbers, Martin Meier, Sascha Kopp, Markus Krüger, Matthias Maurer, Christina Knapek, Benjamin Grzesik, Justus Kasper, Annette Hagengruber Host: Markus Völter Shownoter: Mario Winkler Im September habe ich das DLR (und ungefähr 100 Wissenschaftler) bei der 34. Parabelflug-Kampagne bei Novespace/AirZeroG in Bordeaux begleitet. In dieser Episode unterhalte ich mich mit der DLR-Programmleiterin Katrin Stang, dem Astronauten Matthias Maurer, sowie sechs Wissenschaftler(teams) aus den Gebieten Biologie & Medizin, Physik, Materialwissenschaften und Enginering/Robotik. In der nächsten Episode besprechen wir die fliegerischen Aspekte der Parabelfliegerei. Katrin Stang 00:03:06 Abteilung "Forschung unter Weltraumbedingungen" | DLR Raumfahrtmanagement | DLR Parabelflug | Parabelflug | Raumfahrtübertragungsgesetz | ESA Parabelflüge | Novespace | Fallturm Bremen | ZARM | Ballistische Rakete (ZARM - OT Episode 279) | TEMPUS Parabelfluganlage | Electromagnetic Levitator (EML) | EML Paper | Konvektion | Humanphysiologie | Head-Mounted Display | CNES Andreas Meyer 00:30:25 DLR Institut für Materialphysik im Weltraum | Ruhr-Universität Bochum | Komplexe Plasmen | Levitation | Bundesanstalt für Materialprüfung | BAM, Prof Günster | Metallisches Glas | Bulk Metallic Glass OT 247 | Lasersintern | MORABA Homepage | MAPHEUS 5 Video | Texus | Maxus Christoph Egbers und Martin Meier 00:49:28 Brandenburgische Technische Universität (BTU) Cottbus-Senftenberg | British thermal unit (BTU) | Dielektrikum | Wärmetauscher | Silikonöl | Shadowgraph (en) | telezentrisch | telezentrisches Objektiv | Particle Image Velocimetry | Texus | barokline Wellen | Reynolds-Zahl | Ekman-Zahl | Geoflow Experimente Sascha Kopp & Markus Krüger 01:20:07 Pressemitteilung Uni Magdeburg | Arbeitsgemeinschaft Frau Prof Grimmm | Molekulargenetik | Gravitationsbiologie | Weltraumkrankheit | Prostatakrebs | Clinostat | Random Positioning Machine (DLR) | RNA Sequencing | Exprimierung (CRISPR - OT Episode 292) | Modellorganismus | Fixierung Matthias Maurer 02:03:50 Matthias Maurer | Matthias Maurer | ESA Astronautenkorps | Ariane 6 | Space Situational Awareness | Astronautenzentrum EAC | Samantha Cristoforetti | FLUMIAS Experiment | LUNA | Luca Parmitano | Thomas Pesquet | Boeing CST-100 Starliner | SpaceX Crew Dragon Christina Knapek 02:19:29 DLR Institut für Materialphysik im Weltraum | Plasma | Komplexes Plasma | EkoPlasma (Wendelstein - OT Episode 312) | Particle in Cell | Vortices (Wirbel) Benjamin Grzesik & Justus Kasper 02:43:42 Benjamin Grzesik | Institut für Raumfahrtsysteme, TU Braunschweig | Arbeitsgruppe Satellitentechnik | Space Debris | Space Debris ESA | Regolith | Kohlenstofffaser | Metallisierung | Autoklav | Cubesat (Earth Observation at Planet Labs - OT Episode 204) | Planet Labs | IMU Annette Hagengruber 03:14:53 Annette Hagengruber | DLR Institut Robotik und Mechatronik | EEG | FSR Sensoren | BrainGate | Elektromyografie | Spinale Muskelatrophie | Gauß-Prozess | Deep Learning

    Full show notes at the publisher

    328 - Flying the P-3 Orion (and some other aircraft) Nov 12, 2019
    Show notes

    Guests: Marija “Maz” Jovanovich
    Host: Markus Voelter Shownoter: Bastian Hundt

    Marija Jovanovich is a pilot for the Royal Australian Air Force where she has been flying the P-3 Orion. We discuss the aircraft, the missions, and some anecdotes. Marija then also attended the USAF Experimental Test Pilot School, and we talk a bit about the experience of flying a wide range of different aircraft.

    Introduction of Marija 'Maz' Jovanovich

    00:01:58

    Marija on Twitter | Royal Australian Air-Force | Lockheed P-3 Orion | Boeing P-8 Poseidon

    The P-3 Orion

    00:04:03

    Anti-submarine warfare | Search and Rescue | Electronic Warfare | Lockheed Electra | TV-Series "Ice Pilots" | Hurrican Chaser | DC-3 | C-47 | Buffalo Airways | Turboprop Engine | T-56 Engine | Blown Wing | Direct Lift Control | Airbus A400M | V speeds | Fly-by-wire | Boeing KC-135 | Flight Engineer | RIAT | P-3 Variants

    Sensors on the P3

    00:26:28

    Magnetic anomaly detector | RADAR | AIS | Electro-optics | FLIR | Minimum Visibilty Approach | SONAR | Sonobuoy

    A typical Crew on the P-3 and Anti Submarine Warfare

    00:36:58

    Sensor fusion | Visual flight conditions | Radar Altimeter | Torpedo | Naval mine | Anti-ship missile

    P-3 Missions

    00:47:43

    (OT-306 - Flying the RC-135S Cobra Ball) | Autopilot | Northrop T-38 Talon | Anti piracy mission | Cyclone | Turbulence | Thrust reverser

    Testpilot School

    01:15:53

    Edwards Air Force Base | F-15 | T-38 | MIG-15 | F-16 | Beechcraft C-12 | ASK 21 | Lift to drag ratio | Angle of attack | Extra 300 | g-force | HU-16 | Vista F-16 | Aerodynamic instability

    Aircraft Research and Development Unit

    01:50:48

    The Research Unit | Pilatus PC-9 | Resonance

    In the Air Force as a Woman

    02:00:18

    The Private Plane of Maz

    02:09:58

    Pipistrel Virus


    327 - Das Radioteleskop Effelsberg Nov 01, 2019
    Show notes

    Gast: Norbert Junkes Host: Markus Völter Shownoter: Fabian Zeisberger

    Im August war ich in der Eifel und habe dort das 100m-Radioteleskop in Effelsberg besucht. Mit meinem Gast(geber) Norbert Junkes spreche ich über Konstruktion, Funktionsweise und Einbindung in VLBI-Interferometer. Hier noch einige Videos zum Thema:

    • Das Radioteleskop in Effelsberg – Der Blick hinter die Kulissen
    • 40 Jahre Radioteleskop Effelsberg
    • Lokalzeit aus Köln Der Anstreicher vom Effelsberg
    • Webcam am Radioteleskop

    Vorstellung des Gastes Dr. Norbert Junkes

    00:01:55

    Dr Norbert Junkes | Max-Planck-Institut für Radioastronomie | Radioteleskop Effelsberg | LOFAR | Green-Bank-Observatorium | Arecibo-Observatorium | FAST Radioteleskop | Homologe Verformung | Pulsar | Fast Radio Bursts (FRB) | Dr. Laura Spitler

    Funktionsprinzip und technischer Hintergrund des Teleskops

    00:16:40

    Hohlleiter | CCD-Sensor | Dewar | Heterodyne | Finite-Elemente-Methode | Wasserstofflinie | ALMA | APEX | Pico Veleta Teleskop | VLA | Interferometrie | VLBI | RadioAstron | SKA | ASKAP | Thirty Meter Telescope (TMT) | LBT | Spektroskopie | Polarisation | Synchrotronstrahlung | Plasma | Spiralgalaxie | Stokes-Parameter | Waveplate | Event Horizon Telescope | IRAM | GMVA | VLBA | Maser | Korrelator | Deutsches Forschungsnetz | SOFIA | Gravitationslinseneffekt | Hornstrahler | Kosmische Hintergrundstrahlung

    LOFAR Station

    01:00:35

    LOFAR | Cassiopeia A | Cygnus A | RFI | Rotverschiebung

    Weitere Fragen zum Effelsberger Teleskop

    01:15:29

    Jodrell-Bank-Radioobservatorium | Effelsberg besuchen


    326 - Weather Forecasting at the ECMWF Oct 19, 2019
    Show notes

    Guests: Hilda Carr, Peter Bauer, Tony McNally
    Host: Markus Voelter Shownoter: Thomas Machowinski

    Earlier this year I visited the European Center for Medium-Range Weather Forecasts, a European organization that produces global weather forecasts and performs research on how to improve those. The episode has three parts. First, Hilda Carr gives us an overview of the organization, its purpose and its history. Then I talk with Peter Bauer about weather and climate modeling and about encoding these models efficiently in software programs that run on supercomputers. Part three is a conversation with Tony McNally about where the ECMWF gets its data and how it is continuously fed into the “running” model.

    Introduction

    00:05:18

    Hilda Carr | European Center for Medium-Range Weather Forecast | European Center for Medium-Range Weather Forecast | ECMWF Twitter Account | 350 People are working at ECMWF (Medium Range Forecast - Seasonal Forecast) | Meteoblue <meteoblue.com>

    Modeling

    00:26:17

    Peter Bauer | Overturning Circulation (James Gleick - Chaos: Making a New Science) | Ensemble Forecasting | Machine Learning | Climate Model | Trace Gas

    Computational Aspects

    01:33:29

    Top 500 Supercomputer List | Cray CX40 | Fortran

    Observation Integration

    02:06:38

    Tony McNally | Earth Observation | Data Assimilation in Weather Forecasting | Chart Viewer at ECMWF Website


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