@A_A@lemmy.world avatar

A_A

@A_A@lemmy.world

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A_A,
@A_A@lemmy.world avatar

Source :

The Biden administration has quietly given Ukraine permission to strike inside Russia — solely near the area of Kharkiv — using U.S.-provided weapons, two U.S. officials and two other people familiar with the move said Thursday, a major reversal that will help Ukraine to better defend its second-largest city.

Context:

Those messages came after top U.S. allies, such as the United Kingdom and France, said Ukraine should have the right to attack inside Russia using Western weapons.

A_A,
@A_A@lemmy.world avatar

Lemmy is safe for the moment - - contrary to larger social media : in this article they do not mention Lemmy as being a target.
Also, the title and the header of this post are well written and describe well what’s in the article.

A_A,
@A_A@lemmy.world avatar

Bien, d’ailleurs le vent (c’est bien connu) provient des moulins à vent 😋. Or, plus il y aura de vent, plus les éoliennes tourneront et produiront d’électricité ! C’est un cercle vertueux.
Plus encore : lorsque toutes nos forêts auront brûlés, d’ici 2 à 3 ans, il faudra bien des poteaux ou quelque chose pour égayer le paysage 😄.
(j’aime bien plaisanter)

You kinda have to believe in real magic to study science in-depth

I think this is the biggest problem I see in people trying to understand deeper fields of study, a concept is just too large or out of our perceived reality to even make sense without years of knowledge. I think people fall into the “woo woo” just because it’s easier to not really know versus becoming a doctorate in a...

A_A,
@A_A@lemmy.world avatar

The first philosophical astonishment is that anything at all exists. When I was first learning mathematics I was astonished to see that x^2^ + y^2^ = 1 was the formula to create a circle : such a simple formula to create something so fundamental was astonishing to me.
Today I would say our capacity to be astonished is probably an important mechanism to help us stop and say to ourselves : “hey ! there is something important to learn here !”

A_A, (edited )
@A_A@lemmy.world avatar

Some genes are lethal let’s call them :
“T” bad version and
“t” for the version that lets you live.

if one of those genes is on the xx // xy chromosomes then if you are XX female you will get one combination in this set of combinations : Tt, tT, TT, tt
if you get TT, you are dead.
if you get tt, you live,
if you get Tt or tT you have 3 possible outcomes :
if T is dominant you are dead,
if t is dominant you live,
if T and t are co_dominant you might be sick.

if you are XY male, you have either a “T” (dead) or a “t” (alive).

A_A, (edited )
@A_A@lemmy.world avatar

You might absolutely be right about the meaning of O.P.s’ (confused) question. But still i hope at least i answered o.k. from this part :

And does the X chromosome do anything for me, or is it turned off, and only used if I pass it on to the next generation ?

P.S. : You asked :

Not every combination is being tried in the egg during fertilization, right ?

Gene selection is made before the synthesis of the gametes : for instance a male having XY will produce sperms, each one with either an X or with a Y.

A_A,
@A_A@lemmy.world avatar

i feel this as well, we may see proof that this is indeed right in the next days or weeks. Thanks for all the nice posts and comments, looks as if you were jet propelled !

Some members of Ommastrephidae are known for their jet-propelled flight, earning them the common name of “flying squid” 😋 en.m.wikipedia.org/wiki/Ommastrephidae

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