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The nurse asked the rabbit, "What's your blood type?"

"I'm probably a type O," he replied.

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[-] rbn@feddit.ch 7 points 1 year ago

Hint: You have to read it as "Type O" not 0/Zero/Null. Took me quite long ;)

[-] ilinamorato@lemmy.world 24 points 1 year ago

The blood type is explicitly the letter. O, along with A, B, and AB.

[-] rbn@feddit.ch 13 points 1 year ago* (last edited 1 year ago)

In Germany the blood types are A, B, AB and 0 (zero). That's where my confusion came from: https://de.m.wikipedia.org/wiki/AB0-System

[-] ilinamorato@lemmy.world 8 points 1 year ago* (last edited 1 year ago)

Interesting. International organizations like WHO, ICCBBA, and ISBT all use the letter O, not zero. I wonder why German-speaking countries have chosen the opposite.

[-] dustyData@lemmy.world 6 points 1 year ago* (last edited 1 year ago)

Perhaps because the 0 group is literally the absence or zero presence of antigens A or B, and it was usually identified by zero reactance to lab tests. It was also discovered in Austria, which is perhaps why Germanic adjacent countries use the zero, it was probably the first version. And when translated for the rest of the world someone made a typo and since the difference is immaterial it stuck. Or perhaps because it looked weird to mix letters and numbers that way in a classification system. Nomenclature systems are pretty arbitrary. It's weird what stays and what changes.

[-] rbn@feddit.ch 3 points 1 year ago* (last edited 1 year ago)

Somehow a pretty meta level joke if not only the rabbit but the entire international system of bloodtypes is possibly based on a typ0. 😂

[-] ilinamorato@lemmy.world 3 points 1 year ago

I've read the history of it, and it's added up above in a higher level comment. Both 0 and O were used to refer to the absence of antigens, and it was an Austrian who made the final recommendation that stuck. Which is why it's all the stranger that German-speaking countries kept the zero.

[-] MSugarhill@feddit.de 2 points 1 year ago

Just a wild guess by a fellow Austrian: we do not say O instead of 0 (like in phone numbers) in German. So it just makes no sense for average Joe to write an O. There is no connection here (we have the tramway line O though in Vienna).

[-] bus_factor@lemmy.world 3 points 1 year ago

Norway uses zero as well. Don't know exactly why, but using zero does roll easier off the tongue when pronounced in Norwegian, and the name makes logical sense.

[-] TheGreenGolem@lemmy.dbzer0.com 2 points 1 year ago

Same in Hungary.

[-] Deceptichum@kbin.social 6 points 1 year ago

Do people say type (number) one/zero? I’ve always heard it as Type (Letter) O.

Cos you’ve got stuff like type A and B.

[-] elmicha@feddit.de 4 points 1 year ago

Wikipedia says:

Type O is often called 0 (zero, or null) in other languages.

It's either A, B, AB or none of it, so zero/null.

[-] johker216@lemmy.world 2 points 1 year ago

The Wikipedia quote is misleading - some European countries used zero/null but it was agreed that the prevailing usage should be the letter O.

Wiki source 12

Apparently, it was originally C and changed later, too.

[-] bus_factor@lemmy.world 1 points 1 year ago
this post was submitted on 30 Jan 2024
223 points (97.9% liked)

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