In this episode I talk with Rob Hindley, the Head of Consultancy and Technology Development at Railotech. The focus of this episode is on the design of ice class vessels. Rob starts the conversation by defining ice class vessels and ice breakers. Then we do a deep dive into the topic; we discuss the service life of ice class vessels, the mariners who crew the vessel, the arctic conditions the vessels encounter, the properties and behavior of different types of ice, the design and engineering behind the vessels, the common energy sources used to power vessels, the industry for ice class vessels and much more. I hope you enjoy!
ARTICLES:
Ice Management: https://railotech.fi/app/uploads/2018/08/arctic_passion_news_2011_0.pdf (https://railotech.fi/app/uploads/2018/08/arctic_passion_news_2011_0.pdf)
U.S. Coast Guard Cutter Polar Star marks 50 years ofservice, begins Operation Deep Freeze 2026: https://www.news.uscg.mil/Press-Releases/Article/4385905/ (https://www.news.uscg.mil/Press-Releases/Article/4385905/)
Froud Number (Froud scaling laws): https://en.wikipedia.org/wiki/Froude_number (https://en.wikipedia.org/wiki/Froude_number)
Fram Museum: https://frammuseum.no/en/ (https://frammuseum.no/en/)
WEBSITES:
Society of Naval Architects and Marine Engineers: https://sname.org/
BOOKS:
Through Ice and Fire by Sarah Laverick
CONNECT:
LinkedIn:https://www.linkedin.com/in/adrian-dolinay-frm-96a289106/
GitHub: https://github.com/ad17171717 X:https://twitter.com/DolinayG
Odysee: https://odysee.com/@adriandolinay:0
Medium: https://medium.com/@adriandolinay
PODCAST:
Apple Podcasts:https://podcasts.apple.com/us/podcast/the-aspiring-stem-geek/id1765996824
Audible: https://www.audible.com/podcast/The-Aspiring-STEM-Geek/B0DC73S9SN
iHeart Radio: https://iheart.com/podcast/202676097/
Spotify: https://open.spotify.com/show/60dPNJbDPaPw7ru8g5btxV
|-Video Chapters-|
0:00 – Intro
1:40 – Defining ice class vessels
4:07 – Ice breakers
6:46 – Escort Icebreaker
7:53 – Service life of ice class vessels
9:55 – Vessel size categories
12:15 – The mariners who crew ice class vessels
15:08 – The different types of ice
20:15 – The mechanics of ice
22:22 – Avoiding ice
24:20 – Gliding through ice
26:50 – Getting stuck in ice
32:23 – Specialized material on the hull of ice class vessels
34:09 – Propulsion systems and the energy fueling ice class vessels
40:58 – The tradeoffs considered when designing a vessel
44:15 – Maintenance of an ice class vessel
48:03 – Prototyping vessels
52:54 – Scaling up prototypes
57:55 – Finland’s maritime ecosystem
1:03:16 – Maritime regulations
1:13:48 – Customer base for ice class vessels
1:15:36 – Arctic shipping routes
1:20:07 – Getting started in the ship building industry
1:22:47 – Rob’s most memorable experience on a vessel he engineered
1:24:29 – Coldest temperature Rob has experienced
1:27:01 – Places and activities in Finland
1:29:25 – Book recommendation
1:31:12 – Conclusion
28 Aug 2026
Data Center Cooling with Kelley Mullick - #30
In this episode I talk with Dr. Kelley Mullick a data centerexpert and the CEO and co-Founder of Avayla Consulting Group. The focus of thisepisode is on the technology and methods used to cool data centers. We startthe episode discussing Kelley’s academic background as a chemist and breakinginto the data center field at Intel.
Then we get into data center cooling. Kelley explains themetrics used to evaluate the thermal performance of data centers, the overallincrease in compute power usage in the AI age, common cooling methods such asair and liquid cooling, how data center operators determine the optimal coolingmix for their facility, the costs of retrofitting a data center with moreadvanced cooling technology and much more. I hope you enjoy!
ARTICLES & PAPERS:
Kelley’s PhD dissertation: https://rave.ohiolink.edu/etdc/view?acc_num=osu1324247960
CPU Cooler: Liquid Cooling Vs. Air Cooling: https://www.intel.com/content/www/us/en/gaming/resources/cpu-cooler-liquid-cooling-vs-air-cooling.html (https://www.intel.com/content/www/us/en/gaming/resources/cpu-cooler-liquid-cooling-vs-air-cooling.html)
Alibaba is developing its own immersion cooling tech: https://www.datacenterdynamics.com/en/news/alibaba-is-developing-its-own-immersion-cooling-tech/ (https://www.datacenterdynamics.com/en/news/alibaba-is-developing-its-own-immersion-cooling-tech/)
Hybrid Liquid Cooling Is the Only Way to Stop AI fromBoiling Over by Kelley Mullick: https://thesiliconreview.com/2025/11/hybrid-liquid-cooling-is-the-only-way-to-stop-ai-from-boiling-over (https://thesiliconreview.com/2025/11/hybrid-liquid-cooling-is-the-only-way-to-stop-ai-from-boiling-over)
Cool It: Team Tackles the Thermal Challenge Data CentersFace: https://blogs.nvidia.com/blog/liquid-cooling-doe-challenge/ (https://blogs.nvidia.com/blog/liquid-cooling-doe-challenge/)
Americans Oppose AI Data Centers in Their Area: https://news.gallup.com/poll/709772/americans-oppose-data-centers-area.aspx (https://news.gallup.com/poll/709772/americans-oppose-data-centers-area.aspx)
How is Switch Building AI-Ready Sustainable Data Centres?: https://datacentremagazine.com/news/how-is-switch-building-ai-ready-sustainable-data-centres (https://datacentremagazine.com/news/how-is-switch-building-ai-ready-sustainable-data-centres)
BOOKS:
Nancy Drew Series
MUSIC INTRO/OUTRO:
massobeats - chamomile (https://youtu.be/YFuAgsA4bNI)
CONNECT:
LinkedIn:https://www.linkedin.com/in/adrian-dolinay-frm-96a289106/
GitHub: https://github.com/ad17171717 X:https://twitter.com/DolinayG
Odysee: https://odysee.com/@adriandolinay:0
Medium: https://medium.com/@adriandolinay
PODCAST:
Apple Podcasts:https://podcasts.apple.com/us/podcast/the-aspiring-stem-geek/id1765996824
Audible: https://www.audible.com/podcast/The-Aspiring-STEM-Geek/B0DC73S9SN
iHeart Radio: https://iheart.com/podcast/202676097/
Spotify: https://open.spotify.com/show/60dPNJbDPaPw7ru8g5btxV
|-Video Chapters-|
0:00 – Intro
1:32 – Kelley’s interest in STEM and the arts
2:23 – Studying chemistry in undergrad and grad school
6:17 – Defining what a data center is
7:13 – Kelley’s time at Intel
9:33 – Why compute needs to be cooled
10:33 – Metrics to measure the thermal performance of a data center
13:39 – Colocation operator vs hyperscalers
14:55 – AI and increased compute power usage
20:15 – Components outside of compute that contribute to a data center’sthermal load
20:48 – Data center cooling methods
26:16 – How data center operators determine the optimal cooling architecture
29:17 – Data centers outside of the United States
31:40 – The potential best path for data center cooling
34:28 – Feasibility of retrofitting data centers with more advanced cooling
37:54 – The public’s view on data centers
40:43 – Kelley’s ideal data center policies
44:25 – Things to do in Ohio
46:48 – Book recommendations
48:16 - Conclusion
15 Jul 2026
NASA and Aviation with Nancy Currie-Gregg - #29
In this episode I talk with Dr. Nancy Currie-Gregg, a formerArmy aviation officer, NASA astronaut and current Professor of Practice, Industrial & Systems Engineering and Aerospace Engineering at Texas A&M University.
In the episode, we discuss how Nancy became interested in aviation at a young age, her decision to join the Army Reserve Officers’ Training Corps, Nancy’s work as an Army Aviator, her time as a NASA flight simulation engineer, attending the Astronaut Candidate Training Program, the experience of taking off into space, her role as a flight engineer across fourNASA space missions, the Space Shuttle Columbia disaster, Nancy leading the Space Shuttle Program’s Safety and Mission Assurance Office after the Columbia disaster, her recommendation to aspiring Astronauts and much more. I hope you enjoy!
ARTICLES:
STS-57: https://www.nasa.gov/mission/sts-57/ (https://www.nasa.gov/mission/sts-57/)
STS-88: https://www.nasa.gov/mission/sts-88/ (https://www.nasa.gov/mission/sts-88/)
Columbia Accident Investigation Board (CAIB) Report (2003): https://govinfo.library.unt.edu/caib/news/report/volume1/default.html (https://govinfo.library.unt.edu/caib/news/report/volume1/default.html)
The Challenger STS-51L Accident: https://www.nasa.gov/challenger-sts-51l-accident/ (https://www.nasa.gov/challenger-sts-51l-accident/)
What we know about the midair plane and helicopter crashnear Washington, D.C.: https://www.npr.org/2025/01/30/nx-s1-5280198/plane-crash-washington-dc-helicopter-potomac (https://www.npr.org/2025/01/30/nx-s1-5280198/plane-crash-washington-dc-helicopter-potomac)
Neil Armstrong, Ohio teachers inspired astronaut NancyCurrie-Gregg: https://www.dispatch.com/story/news/usa250/2026/04/12/nancy-currie-gregg-astronaut-challenger-explosion-ohio/89441020007/
BOOKS:
The Challenger launch decision by Diane Vaughan
Normal Accidents by Charles Perrow
MUSIC INTRO/OUTRO:
massobeats - bonsai (https://youtu.be/BgjrxtC_WlE (https://youtu.be/BgjrxtC_WlE))
CONNECT:
LinkedIn:https://www.linkedin.com/in/adrian-dolinay-frm-96a289106/
GitHub: https://github.com/ad17171717 X:https://twitter.com/DolinayG
Odysee: https://odysee.com/@adriandolinay:0
Medium: https://medium.com/@adriandolinay
PODCAST:
Apple Podcasts:https://podcasts.apple.com/us/podcast/the-aspiring-stem-geek/id1765996824
Audible: https://www.audible.com/podcast/The-Aspiring-STEM-Geek/B0DC73S9SN
iHeart Radio: https://iheart.com/podcast/202676097/
Spotify: https://open.spotify.com/show/60dPNJbDPaPw7ru8g5btxV
|-Video Chapters-|
0:00 – Intro
0:21 – Nancy’s interest in math and science growing up
1:09 – Studying Biological Science and joining Army Reserve Officers' TrainingCorps
4:55 – Army aviation school
8:17 –Helicopter Instructor Pilot
10:22 – NASA Simulation Engineer
14:54 – NASA’s Shuttle Training Aircraft
19:14 – Fault injection in flight simulation
21:57 – NASA’s Astronaut Candidate Training Program
24:56 – Space Transportation System 57 (STS-57)
32:16 –Space Transportation System 88 (STS-88)
37:00 – The Space Shuttle Columbia disaster and the aftermath
41:38 – Breaking into the space industry
43:56 – Book recommendation
46:34 – Conclusion
Reach and audience
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YouTube views
4,657,709,572
Score snapshot 15 Sept 2025
Apple Podcasts (US)
5.0 / 5
1 ratings
Spotify
5.0 / 5
8 ratings
Podcast Authority Score: 48 / 100
A composite of feed quality, social presence, YouTube performance and engagement. Read the methodology.
Quality
46
Social presence
0
YouTube
93
Engagement
32
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