Hacker News: donaldcuckmanhttps://news.ycombinator.com/user?id=donaldcuckmanHacker News RSShttps://hnrss.org/hnrss v2.1.1Mon, 19 Oct 2026 11:28:37 +0000<![CDATA[New comment by donaldcuckman in "Maglev titanium heart inside the chest of a live patient"]]>So this is actually something I've worked on for 3ish years. Not this project but a similar BiVAD. Pictured is a dual centrifugal pump. The actual impeller is probably 20mm in diameter. The maglev/ pump portion is most likely a slice motor topology. Which is passively stable axially.

]]>Sun, 28 Jul 2024 00:07:48 +0000https://news.ycombinator.com/item?id=41090299donaldcuckmanhttps://news.ycombinator.com/item?id=41090299https://news.ycombinator.com/item?id=41090299<![CDATA[New comment by donaldcuckman in "Ask HN: How to run an old-school mailing list?"]]>https://www.freelists.org/

]]>Sat, 23 Mar 2024 00:28:15 +0000https://news.ycombinator.com/item?id=39796248donaldcuckmanhttps://news.ycombinator.com/item?id=39796248https://news.ycombinator.com/item?id=39796248<![CDATA[New comment by donaldcuckman in "Ask HN: Which book can attract anyone towards your field of study?"]]>FOUNDATIONS OF MECHANICAL ACCURACY Wayne Moore

]]>Mon, 28 Mar 2022 00:50:40 +0000https://news.ycombinator.com/item?id=30825774donaldcuckmanhttps://news.ycombinator.com/item?id=30825774https://news.ycombinator.com/item?id=30825774<![CDATA[New comment by donaldcuckman in "Simplo batteries breaking MacBook logic boards?"]]>Probably some bizzare issue with the smc logic.

]]>Sat, 12 Dec 2020 14:38:30 +0000https://news.ycombinator.com/item?id=25398463donaldcuckmanhttps://news.ycombinator.com/item?id=25398463https://news.ycombinator.com/item?id=25398463<![CDATA[New comment by donaldcuckman in "Researchers identify new type of superconductor"]]>Pretty interesting stuff. Read the unpublished paper earlier this week potentially pretty ground-breaking

]]>Wed, 23 Sep 2020 16:43:26 +0000https://news.ycombinator.com/item?id=24568968donaldcuckmanhttps://news.ycombinator.com/item?id=24568968https://news.ycombinator.com/item?id=24568968<![CDATA[New comment by donaldcuckman in "Running-MacBook-Without-Battery"]]>just fixed my 2011 mbp with this awesome .kext fix.

]]>Thu, 17 Sep 2020 18:44:30 +0000https://news.ycombinator.com/item?id=24508418donaldcuckmanhttps://news.ycombinator.com/item?id=24508418https://news.ycombinator.com/item?id=24508418<![CDATA[Running-MacBook-Without-Battery]]>Article URL: https://portugnole.blogspot.com/2020/05/running-macbook-without-battery-lets-go.html

Comments URL: https://news.ycombinator.com/item?id=24508417

Points: 1

# Comments: 1

]]>Thu, 17 Sep 2020 18:44:30 +0000https://portugnole.blogspot.com/2020/05/running-macbook-without-battery-lets-go.htmldonaldcuckmanhttps://news.ycombinator.com/item?id=24508417https://news.ycombinator.com/item?id=24508417<![CDATA[New comment by donaldcuckman in "Heliogen’s new tech could unlock renewable energy for industrial manufacturing"]]>This ain't new tech, buzzword + solar tower = headlines. I really love this method of solar though, minimal carbon footprint, ~0% efficiency decay. Coupled w a Sterling engine could even be used for small, off grid energy source.

]]>Tue, 19 Nov 2019 19:05:36 +0000https://news.ycombinator.com/item?id=21576887donaldcuckmanhttps://news.ycombinator.com/item?id=21576887https://news.ycombinator.com/item?id=21576887