Show threadC.Apr 3

Of course, you need to be sensible when you're first starting out. Don't mess with #dangerous things. You don't start repairing hydraulic systems or mains-voltage gear or machines that can take your arm off if you sneeze wrong.

Start with simple stuff, and basic safety precautions.

You can try #electrical stuff, as long as you unplug it and short any big capacitors (large cylindrical things) it has, in case they don't have a bleed resistor on them.

Even better is to start with something that plugs in with an external low-voltage plugpack - it's much harder to kill yourself with a tower fan that runs from 24 VDC than one that runs directly off the mains.

Maybe do a brief web search on the device if you're not sure about it, just to see if there are warnings about working on it.

Surprising (in some sense) things to avoid working on:

Microwave oven. This is the object in your house that is trying hardest to kill you. High frequency, high-voltage AC will kill you dead if you get it across your body.

Old-fashioned CRT (TV/monitor) tubes. Very high voltages, and frequently hold a charge for a long time.

Gas-powered equipment. You can't "unplug" them, and there's always a chance there's enough gas hidden in the carburetor or the removed spark plug wire bumps into the plug that it could puff to life if you turn the crankshaft. One revolution is enough to maim or kill you.

Have fun!

2/2

#danger #DangerWillRobinson #DIY #fixit #DarwinAward #NaturalSelection

MoosMar 14

 A sweeping new review of five decades of scientific literature finds robust evidence that natural selection operates simultaneously across multiple levels of life, from genes to groups to entire communities, and not just on individual organisms.
#evolution #naturalselection #biodiversity

https://www.newswise.com/articles/landmark-research-expands-understanding-of-how-evolution-and-natural-selection-work/?sc=c6313

Landmark Research Expands Understanding of How Evolution and Natural Selection Work | Newswise

A sweeping new review of five decades of scientific literature finds robust evidence that natural selection operates simultaneously across multiple levels of life, from genes to groups to entire communities, and not just on individual organisms.

Newswise
Jørgen fra EuropaMar 10

The #Naturalselection is what I would wish everyone who watched #snowboarding at the #olympics should get to see instead - great riding in superb terrain.

Now live from Revelstoke, BC: https://www.youtube.com/live/fOx1qMS3I-g?si=xklOlrTxaMARWzW_

YETI Natural Selection Snowboard LIVE: Day 1 at Revelstoke

YouTube
Erik SvenssonMar 7

My review of two books about the evolution of maladaptation and human imperfection is now out as Early Alert in the journal Evolution @sse_evolution

Enjoy!

https://academic.oup.com/evolut/advance-article/doi/10.1093/evolut/qpag033/8503492

#Evolution #adaptation #maladaptation #naturalselection

Felipe NonatoMar 2

How/Why did giraffes evolve to have a big neck like they have? My simplistic mind only thinks about eating from high places. I've been thinking about unique animals.

#evolution #NaturalSelection #evolutionary_biology

ScienceCommunicatorMar 1

A person, a human, is an animal (e.g., comprised of animal cells) Knowing, or in some cases coming to accept the broad range of fact's about this, is generally, healthy knowledge for any person & culture to have.

#education #health #science #biology #evolution #NaturalSelection #psychology

NewsletterTFFeb 27

Natural Selection Operates Across Diverse Scales, From Molecules to Ecosystems

Natural selection, the process that drives evolution, acts on many levels, from tiny molecules to large ecosystems, changing how we understand life's development.

#NaturalSelection, #Evolution, #Biology, #Science, #Life

https://newsletter.tf/natural-selection-works-molecules-ecosystems/

NewsletterTFFeb 27

Scientists now know natural selection works on many levels, not just on individual animals or plants. This is like saying a single brick matters, but also the whole wall and the house it builds.

#NaturalSelection, #Evolution, #Biology, #Science, #Life

https://newsletter.tf/natural-selection-works-molecules-ecosystems/

Natural Selection Works From Molecules Up To Ecosystems, Scientists Find

Natural selection, the process that drives evolution, acts on many levels, from tiny molecules to large ecosystems, changing how we understand life's development.

PhosphenesFeb 14
How eugenics gets Darwin wrong.
#Darwin #naturalselection
Steve MitchellFeb 12

I haven’t actually finished any of the books that I’ve already started reading, but I’m going to start to read this today and hope to finish it before the day is over. Happy Darwin Day everyone!

#CurrentlyReading #Goodreads #ReadingChallenge #Bibliophile #Booklovers #Bookworm #CharlesDarwin #OnNaturalSelection #Evolution #NaturalSelection #TheoryOfEvolution #DarwinDay #PenguinBooksGreatIdeas #GreatIdeas #PenguinBooks