dan_dares
dan_dares t1_j2cosn6 wrote
Reply to comment by yirzmstrebor in There's absolutely no way we know what dinosaur skin looks like. by zav3rmd
I love it when I learn something new.
Thank you!
dan_dares t1_j281zsx wrote
Reply to comment by zav3rmd in There's absolutely no way we know what dinosaur skin looks like. by zav3rmd
Skin is rarely intact but we have examples, so we can tell what the texture of those examples was.
However you are right that currently we cannot determine the pigmentation.
dan_dares t1_j281bjt wrote
Reply to Albinos are the most powerful humans on Earth. They have both white privilege and the n-word pass. by Farrightextremistlol
Unless you're in some places where they're butchered for magic potions.
dan_dares t1_j13y08p wrote
GLONASS a rival to GPS..
Should tell the russian military who use civilian GPS recievers.
Also who is going to fund this ๐ millions will go in and every step of the way funds will shrink, eventually a tin can with chinese radio will be launched by firework.
dan_dares t1_iye4so7 wrote
Reply to comment by _AlreadyTaken_ in How is O2 introduced to blood in the alveoli? by LemmeKermitSuicide
Yep the inherent limitation of spiracles..
But the alternative is 8 foot tall insects, so i'll take that.
dan_dares t1_iye30sq wrote
Reply to comment by Fallacy_Spotted in How is O2 introduced to blood in the alveoli? by LemmeKermitSuicide
Efficient takes into account many factors, having to grow a massive organ for gaseous diffusion isn't very efficient.
Insects that rely on diffusion through spiracles, have an upper limit on size as diffusion is so slow
Diffusion is energetically cheap however, so systems evolved around it
dan_dares t1_iyd4m3c wrote
It's via diffusion, the deoxygenated blood has a higher affinity for the oxygen and the haemoglobin will bind to the oxygen easily.
Diffusion isn't very efficient, hence needing a very high surface area and very thin capillary walls in the alveoli.
The blood travels along enough of this diffusion-optimised path to ensure (in a healthy person) that almost all the blood becomes saturated.
dan_dares t1_ixmi1wc wrote
Reply to Gotta ask first by orion726
Pffft..
looks under router
pops in the ISP set password
dan_dares t1_ixld2mz wrote
Reply to comment by peedwhite in Comment your best pick up line and let people rate it by Jakeywolf666
"Are you saying my ass is big"?
dan_dares t1_ixlb896 wrote
Reply to comment by Jakeywolf666 in Comment your best pick up line and let people rate it by Jakeywolf666
Well, it picked me up a GF..
So.. yeah.
dan_dares t1_ixlajlq wrote
Do you have a boyfriend?
Want one?
The one time I used this, I ended up marrying her.
dan_dares t1_iwpb309 wrote
Reply to Researchers have developed an alternative positioning system that is more robust and accurate than GPS, especially in urban settings. The working prototype that demonstrated this new mobile network infrastructure achieved an accuracy of 10 centimeters. by the_phet
More accurate, but heavily tied to urban environments and mobile infrastructure..
Will be of immense use with automated drones however.
dan_dares t1_iuhlxk4 wrote
Reply to comment by commanderquill in A view I captured of the sun between ISS solar panels. More details in comments. by astro_pettit
technically correct, the best kind of correct.
dan_dares t1_iuhlw2x wrote
Reply to comment by astro_pettit in A view I captured of the sun between ISS solar panels. More details in comments. by astro_pettit
Every time I see one of your posts, I am amazed.
thank you, and thanks to everyone that lets you take these pictures and keeps what you do in the public eye.
dan_dares t1_iud0a53 wrote
Reply to comment by ApiContraption in PsBattle: A glowing baked potato by mydoglixu
What the hell happened here?
dan_dares t1_iucv2cv wrote
My record was 3, sometimes 2, but I prefer to concentrate on 1.
My limited time now means that even 2 would take forever.
dan_dares t1_itpby3b wrote
Reply to comment by WishWeHadStarships in Deflecting asteroids is not enough โ we need to know when they approach by burtzev
An asteroid MAY be a problem,
without looking, we don't know.
and without having a plan saved for a rainy day, it's basically planning to fail.
no one is looking to travel to an asteroid, this is about coming up with a really good plan and look out for something that might kill millions and harm the earths ecosystems (i'm talking about smaller than planet killers here, which there are many more)
it's also not an exclusive thing.
dan_dares t1_itpavlr wrote
Reply to comment by Latexi95 in Deflecting asteroids is not enough โ we need to know when they approach by burtzev
and each chunk is checked a few times, so it all helps!
dan_dares t1_it6frrt wrote
Reply to comment by Bluemofia in China looked at putting a monitoring satellite in retrograde geostationary orbit via the moon by OkOrdinary5299
Every country on the planet would be pissed at the one who launched that.
everyone who uses GPS in their car, or company that uses GPS time stamps (google for one)
GPS has literally become a mission-critical piece of human life.
(and by GPS i'm referring to all the positioning systems, not just the American system, they would all be wiped out)
Good analogy btw.
dan_dares t1_irnlkj2 wrote
Reply to comment by scrooch in Could CRISPR transform a mouse stem cell to a human stem cell? by scrooch
To use your computer analogy, modifying a protein would be like modifying a program class, without fully understanding the full program, might work, might cause huge issues ๐
dan_dares t1_irnl5b7 wrote
Reply to comment by scrooch in Could CRISPR transform a mouse stem cell to a human stem cell? by scrooch
Yes, the computer analogy is pretty good, but the proteins can be for signaling, enzymes, or other purposes..
Can the old co-exist with the new? Thats a question i have no idea about (I will be honest)
There are a few reasons why viruses from other species can't infect human cells (or well) generally it's a matter of the virus gaining entry to the cell to hijack cellular machinery (i will admit, it's been a few years since my virology courses) so physically differences at this stage generally prevents entry.
Interestingly there is a line of thought that some poorly adapted viruses can be oncogenic (causing cancers)
To everyone with more knowledge on this, please correct and accept my apologies if I butchered anything!
dan_dares t1_irmcp1t wrote
CRISPR is a scalpel, able to excise and introduce new DNA, potentially it's possible to change all the DNA in a mouse cell, but it would be like trying to change a painting with a single hair paintbrush.
Given the number of times you'd need to conduct the protocol, you'd need to culture the cell line for quite a while, to be honest I think that would be a limiting factor.
My wife has actually used CRISPR on mouse lines for genetic studies but they have always been for small knock-ins and knock-outs.
EDIT: Sorry, missed a part to expand on..
If we presume that you could wave a wand and change the DNA using CRISPR all at once, you would have a situation where proteins being created would be different from the existing proteins, not sure what the ramifications of this would be, I shall ask my better half.
Gut feel is there is a possibility that the cell might undergo apoptosis during the change over, for a few reasons..
dan_dares t1_j463aey wrote
Reply to [Image] "I have not failed 700 times. I have not failed once. I have succeeded in proving that those 700 ways will not work. When I have eliminated the ways that will not work, I will find the way that will work." ~ Thomas A. Edison by Butterflies_Books
Failed 700 times, steal someone elses idea..
"Hey guys, I got it to work!"