omega tau - English only

omega tau - English only

By Markus Voelter, Nora LudewigScienceNatural Sciences
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omega tau - English only episodes

  • 299 - Gravity Storage

    Guest: Eduard Heindl Host: Markus Voelter Shownoter: Fabian Zeisberger

    With power generation in the grid becoming more diverse and decentralized, energy storage is becoming more and more important. Eduard Heindl‘s gravity storage is an approach to storing electrical energy as potential energy by lifting huge masses cut out of the ground. While this sounds crazy, there are lots of reasons why this makes sense. In the episode we discuss then need, the general approach, the construction process and some of the engineering challenges. We also look at the innovation process, the path from the idea to something that is ready to be built.

    Introduction of Prof. Dr. Eduard Heindl 00:03:21

    Prof. Dr. Eduard Heindl | Heindl Energy | Potential energy | Super conducting magnetic energy storage | Maxwell's equations | Capacitor | Renewable energy | Coal power | Nuclear Power | Thermal energy storage | Storage heater ("Nachtspeicherofen) | Pumped-storage hydroelectricity | Carnot's theorem (thermodynamics) | Solar power | Wind power | Compressed air energy storage | Decentralised energy | Smart grid | High-voltage direct current (HVDC/HGÜ) | Super grids

    Basic Concept 00:33:36

    OT 272 Pumped storage power plant in Kaprun (German) | Basic concept

    Construction process 00:52:13

    Construction | Wire saw | Goldisthal Pumped Storage Station

    Engineering process 01:13:58

    World Future Energy Summit | ITER | Zeppelin | Forklift | Geislinger Steige

    1 hr 41 min
  • 297 - Flying the AH-64 Apache

    Guest: Caleb Marheine Host: Markus Voelter Shownoter: Alexander Grote

    In mid-September I drove to Illesheim Army Airfield to meet with Caleb Marheine who flies the AH-64 Apache helicopter there. We talked about the helicopter’s systems, the cockpit, aspects of flying it as well as some of the missions.

    My own Pictures

    Jon’s Pictures

    Introduction of the helicopter 00:04:50

    AH-64D Apache | Engines | Rotor | MD500 | Forward looking infrared | Bell 206 | Weapons | HEDP | Hellfire Rack | Longbow Radar | Airframe | Pitot Tube | Flare | Chaff | Buckets | Tail Rotor | Stabelizer | Roll, Pitch and Yaw | WSO | Ballistic Glass | Kevlar | Self sealing fuel tank | Cable Cutters | Cockpit | Glass cockpit | Ejection Seat | Kamov Ka-50 | AWACS | Flying a helicopter with marcus (german)

    Flying the Apache 01:05:30

    IFR | Low level flight | Clear air turbulence | Autorotation | Density altitude | Organizational structure | Combat aviation brigade | JAAT | A10 | Laser designator

    Missons 01:42:55

    Cobra | Tow-Missle | Advanced attack helicopter research programm | Fulda Gap | Medivac

    Echo Model 02:10:50

    Future Vertical Lift | RAH-66 Comanche

    2 hr 29 min
  • 295 - BepiColombo

    Guests: Pablo Munoz, Joe Zender, Roberto Peron, Ajako Matsuoka, Joana Oliveira, Paolo Ferri, Andreas Rudolph, Fabian Luedicke Host: Markus Voelter Shownoter: Mario Winkler

    On October 20, the BepiColombo started its flight to Mercury on an Ariane 5 from Kourou. I was at the launch press event at ESOC in Darmstadt to follow the launch and to record a couple of interviews. The episode consists of three major parts. The first part is an interview with Pablo Munoz about mission analysis and flight dynamics. The second part looks at the science with Joe Zender, Roberto Peron, Ajako Matsuoka and Joana Oliveira. And part three are multiple short takes with Paolo Ferri, Andreas Rudolph and Fabian Luedicke recorded in the middle of the night at ESOC.

    Since this episode has been “accelerated”, the shownotes will be delivered later.

    Overview by Joe Zender 00:00:30

    ESA | Joe Zender | Mercury | Mysteries of Mercury | BepiColombo Wikipedia | BepiColombo ESA Mission Homepage | BepiColombo Spacecraft | BepiColombo DLR contribution | JAXA | Mercury Magnetospheric Orbiter (MMO) | Mercury Planetary Orbiter (MPO) | Getting to Mercury | Multi-layer insulation (MLI)

    Episode Intro 00:06:49

    Interview: Flight Dynamics 00:09:13

    Pablo Munoz | ESOC | Flight Dynamics | ESA Flight Dynamics Operations | Escape Velocity | Swing-by / Gravity assist manover | Eccentricity of Mercury | LEOP phase | Deep Space maneuvers | Spacecraft propulsion | Electric propulsion | Gravity loss | Albedo | Delta velocity | Doppler effect | Delta-DOR | ESA Deep Space Antennas

    Interview: Science 00:41:05

    Joana Oliveira | Ajako Matsuoka | Roberto Peron | Italian National Institue of Astrophysics | Joe Zender | Solar wind | NASA Mariner program | Flyby | NASA Messenger spaceraft | Guiseppe Colombo | Orbital resonance | Mercury's magnetic field | Gravity | Ka-Band | Accelerometer | General Relativity | Pericenter | Vulcan | The Perihelion of Mercury | Exosphere | Magnetosphere | Digital elevation model DEM | BepiColombo Laser Altimeter | Precise orbit determination | ESA Science Operation Center at ESAC | Sodium | Gravity-gradient stabilization | Superior Conjunction | Shapiro time delay | Cassini mission | Solar Corona | Seismometer | Ground Truth

    Launch: Role Call 01:42:24

    ESTRACK | Guiana Space Centre, Kourou | BepiColombo Launch Replay

    Launch: Paolo Ferri 01:44:32

    Paolo Ferri | Malindi, Kenia | Attitude Control

    Launch: Acquisition of Signal 01:52:44

    Telemetry | New Norcia station

    Launch: Andreas Rudolph 01:55:33

    Andreas Rudolph | BepiColombo Solar Array | Images of BepiColombo | CNES

    Launch: Altimeter 02:05:26

    Fabian Luedicke | DLR | DLR Department Planetary Geodesy | BepiColombo Laser Altimeter (german) | BepiColombo Laser Altimeter (english)

    2 hr 13 min
  • 292 - Gene Editing with CRISPR/Cas

    Guest: Sam Sternberg Host: Markus Voelter Shownoter: Thomas Machowinski

    CRISPR is a family of DNA sequences in bacteria and archaea that are a part of these organisms’ cellular defense system. A recent discovery showed how this mechanism can be used to edit genes much more easily than legacy methods. In this episode I chat with Sam Sternberg about the naturally occuring CRISPR systems, how they work, and how CRISPR together with its associated enzymes can be used to cut, and subsequently, edit, DNA. We conclude the episode with an outlook on the potential use in medicine.

    Check out Sam’s book A Crack in Creation: Gene Editing and the Unthinkable Power to Control Evolution.

    Es gibt außerdem ein Kurz&Knackig Video:

    Intro and General 00:02:22

    Guest is Samuel Sternberg | CRISPR Clustered Regularly Interspaced Short Palindromic Repeats | CAS9 CRISPR Associated protein 9 | DNA | Gene | RNA | Protein | Enzymes | 2007 Discovery: CRISPR gene sequences stores DNA information from pathogenes / e.g. viruses

    Genome Editing with CRISPR/CAS9 00:23:02

    Genome Editing | Nucleus | ZFN | TALEN | 23andMe | Homolgy directed repair | Transfection | Off-target effect | GMO | Genome splicing | CRISPR/CAS9 Method in comparsion to traditional genome editing and breeding

    Genral Discussion 01:09:45

    Patents in Biology | Sam's work in detail | Cas13 edits RNA instead of DNA | Sam's book

    1 hr 32 min
  • 291 - Flying in the Papuan Bush

    Guest: Daniel Geaslen Host: Markus Voelter Shownoter: Mario Winkler

    I chat with Daniel Geaslen about bush flying. His (at this time, former) job is to fly Kodiak turbo props for Mission Aviation Fellowship in Papua Indonesia, supplying remote villages. We cover the airplane, the missions, as well as the flying itself, with a particular focus on weather and challenging airfields.

    If you want to donate to MAF, check out maf.org/donate.

    Introduction 00:02:28

    Daniel Geaslen | Twitter | YouTube chanhel | Papua New Guinea | Papua Indonesia | Wamena

    Mission Aviation Fellowship 00:09:43

    Mission Aviation Fellowship MAF | MAF Videos | Moody Aviation | Utah Backcountry Pilots Association

    Typical flying day 00:19:51

    Aircrafts 00:25:52

    Quest Kodiak | Papua Bush Flying in a Quest Kodiak with MAF | Cessna Grand Caravan | PT6 engine | Quest Aircraft in Idaho | Tapered wing | Stall

    Flying Challenges 00:36:38

    Sintanee, port city | Courchevel Altiport | Touchdown zone | Landing flare | Pasima | IMASAFE

    Weather conditions 01:07:22

    IMC | Cumulus clouds

    Safety/Emergency 01:14:23

    ELTs | Two-way radio | SPOT trackers | inReach | Controlled flight into terrain, CFIT

    Prerequisites, Future 01:31:58

    Beech 1900

    1 hr 45 min
  • 290 – Langs Biogas-Kraftwerk
    Vor ein paar Wochen habe ich Ernst-Günther und Matthias Lang auf ihrem Hof und Biogas-Kraftwerk besucht. Wir haben uns unterhalten über den Verarbeitungs- und Energiegewinnungsprozess, die Integration und Synergien mit der Landwirtschaft sowie Aspekte der Wirtschaftlichkeit und der Unterstützung erneuerbarer Energien in Deutschland generell.
    2 hr 10 min
  • 289 - Music Production at Sandlane Studios

    Guest: Joost van den Broek Host: Markus Voelter Shownoter: Bastian Hundt

    A few years ago, I interviewed Arjen Lucassen about his wonderful music and how he makes it; obviously, I am a big fan! Recently, his Ayreon universe was performed live on stage and I was blown away. I decided I had to talk the the guy behind the live shows, Joost van den Broek. Luckily he agreed. So I visited him in his studios and we talked about music production and arrangement in general, and specifically for the Ayreon live shows.

    You can buy the Ayreon Universe here ar Arjen’s shop and of course at Amazon.

    Introduction of Joost van den Broek 00:04:19

    Airbase Rijen | Sandlane Studios | Epica Band | Arjen Lucassen | Ayreon Band | Conservatory | Keyboard | Metal | Dream Theater Band

    Music Production Overview 00:18:04

    Demo Tape | Preproduction | Sound Engineer | Pro Tools | Mixing | Mastering | Equalizer | Compressor | Reverb | Limiter | Delay | Loudness War | Stereo Enhanced | Monitoring

    Studios 00:40:14

    Amplifier | Home-Studio | Amplifier Simulation | Reamping | Direct Instrument Signal | MIDI | Riff | Sampling

    Arranging 01:08:39

    Lead Guitar | Ensemble | Chords | Backing Singers

    Studio Tour 01:29:49

    Music Studio | Mixing Desk | Overhead Microphone | DSP | Hammond Keyboard

    2 hr 7 min
  • 288 - Flight Research at NASA Armstrong, Part 3: Historic

    Guest: Al Bowers Host: Markus Voelter Shownoter: Tim Jurik

    In this episode I talk with NASA Armstrong’s chief scientist Al Bowers about the research projects he has been involved in during his long career at NASA. We cover deep stall research with a Schweizer sailplane, high-alpha flight and thrust vectoring with the X-29, X-31 and F-18 HARV, aero-tow of fast jets with the F-106, supercritical wings with the F-8, as well as space related projects using the SR-71 and the X-30. This is one of my favourite episodes of all time, since it is a bit of trip down memory lane for me personally, and Al perfectly hits the sweet spot between recounting facts and telling anecdotes.

    I met Al when I was visiting NASA Armstrong in early 2017; this episode is a continuation of the conversations there about full-scale and subscale research there.

    Schweizer Deep Stall Project 00:06:45

    Schweizer-1-36 | Dutch Roll

    F-18 High Alpha Research Vehicle (HARV) 00:17:22

    F-18 HARV

    F-18 HARV Phase 2 - Thrust Vectoring 00:30:40

    X-15

    F-18 HARV Phase 3 - Movable Strakes 00:41:30

    X-31 (Enhanced Fighter Maneuverability) 00:46:05

    F-15B ACTIVE 00:51:06

    F-15 ACTIVE

    Oblique Wing 00:58:40

    AD-1 | Robert T. "RT" Jones | Ilan Kroo | Neil Armstrong

    F-8 Supercritical Wing 01:16:56

    F-8 Supercritical Wing | Richard Whitcomb | Area Rule (German Aerospace Center (DLR) (Deutsches Zentrum für Luft- und Raumfahrt e.V.))

    Grumman X-29 01:29:10

    X-29 NASA Fact Sheet | X-29 Wikipedia Entry | F-5 | Dynamic Inversion

    SR-71 01:41:21

    SR-71 | NASA Armstrong Fact Sheet: SR-71 Blackbird | Omega Tau SR-71 Episode | Aerospike

    Controlled Impact Demonstration 01:51:50

    Crash In the Desert

    F-106 Aerotow 02:09:43

    Lowering the Cost of Space Launches | Mark "Forger" Stucky | Low Altitude Parachute Extraction

    Rockwell X-30 02:34:48

    Rockwell X-30 National Aero-Space Plane

    Preliminary Research Aerodynamic Design to Lower Drag (Prandtl) 02:47:45

    Prandtl-D Aircraft

    Conclusion 02:55:35

    3 hr 1 min
  • 286 - Software Analog Effects

    Guest: Julian Parker Host: Markus Voelter Shownoter: Jochen Spalding

    Effects devices are essential for electric guitars and keyboards because they shape sound and make it interesting; many classic devices exist. However, those are rare and/or expensive, plus, even if they are not, carrying them around on a tour costs money. This is why these hardware devices are simulated in software, and distributed as plugins for audio software. Native Instruments is a manufacturer of such software analog effects packages. In this episode I chat with one of their engineers, Julian Parker, about how this software simulation of the electronic hardware is done.

    Introduction Julian Parker And What He Does 00:04:08

    Julian Parker | Native Instruments | Perceptual and Numerical Aspects of Spring Reverberation Modeling | DSP | Traktor | Machine | Komplete 11 | Guitar Pedals | Tape based delay | Bucket-brigade device | [Paper] Acoustics and Modeling of Pickups

    Black-Box Modeling 00:29:33

    Black-box testing | White-box testing | Finite impulse response | Infinite impulse response | Low-pass filter | Fast Fourier transform | [Paper] Subjective and objective quality assessment of audio source separation | Convolution | Linear time-invariant theory | Error metric | Amp cabinet

    White-Box Modeling 01:06:34

    Digital waveguide synthesis | Digital Waveguides (Julius O. Smith - Physical audio signal processing)  | Karplus–Strong string synthesis | Ordinary differential equation | Capacitor | Transistor | Inductor | Resistor | Diode | Kirchhoff's circuit laws | Even and odd harmonics | Don Buchla | Robert Moog | Feature extraction | Mathematica | C++ | Domain-specific language | Compiler | LLVM

    2 hr 5 min
  • 285 - Superconductivity

    Guest: Pierre Bauer Host: Markus Voelter Shownoter: Kolja Dummann

    Superconductivity, the ability of a material to carry electrical current with zero resistance, is a surprising property of nature, which man has been able to exploit in many ways, in particular, for high-performance magnets. Those are used in magnetic resonance imagers, but also in colliders and fusion reactors. In this episode we discuss the basics of superconductivity and its uses with Pierre Bauer, a superconductor engineer at ITER.

    Superconductivity and its Discovery 00:03:05

    Inversion temperature | Kamerlingh Onnes | James Dewar | Helium | Fritz London | Heinz London | Ohm's law | Energy Gap | Pauli exclusion principle | Cooper pair | Meissner effect

    Applications of Superconductors 00:39:08

    ITER (omega tau 157 - Fusion at ITER | MRI - Magnetic resonance imaging | LHC - Large Hadron Collider (omega tau 30 – The Large Hadron Collider)  | omega tau 96 - Controlling the LHC Beam)  | StarTram | Railgun

    Materials 00:56:45

    Mercury  | Niobium | Tin (XFEL - European X-ray free-electron laser | omega tau 197 - The European XFEL | FCC - Future Circular Collider (omega tau 231 – The Future Circular Collider)

    Magnet Design 01:14:40

    Diffusion barrier

    Quench Protection 01:54:30

    Fringe Fields (MagLab - National High Magnetic Field Laboratory)  | Superfluidity

    Conclusion 02:42:27

    2 hr 51 min

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