SKU: 38762896901

Die Schnapszahl-Methode

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Description

Die Schnapszahl-MethodeDie Schnapszahl Methode beschreibt einen Effekt der Kalenderrechner den sogenannten Kalender im Kopf. Die Schnapszahl Methode ist ein sehr einfaches und elegantes Verfahren zur Berechnung des Wochentags fr ein beliebiges Datum. Die Methode ist virtuos und vllig neu. Die Schnapszahl Methode ist fr die Jahre von 1955 bis 2054 extrem simpel. Ihre Erweiterung auf den Zeitraum 1900 bis 2099 ist einfach. Der rechnerische Aufwand geht dabei nicht ber ein

Die Schnapszahl-Methode beschreibt einen Effekt der Kalenderrechner Ð den sogenannten ãKalender im KopfÒ. Die Schnapszahl-Methode ist ein sehr einfaches und elegantes Verfahren zur Berechnung des Wochentags fŸr ein beliebiges Datum. Die Methode ist virtuos und všllig neu.

Die Schnapszahl-Methode ist fŸr die Jahre von 1955 bis 2054 extrem simpel. Ihre Erweiterung auf den Zeitraum 1900 bis 2099 ist einfach. Der rechnerische Aufwand geht dabei nicht Ÿber ein ãZŠhlen bis 13Ò hinaus. In mehr als einem Drittel aller FŠlle muss Ÿberhaupt nicht gerechnet werden, man wei§ die Antwort sofort. Es mŸssen keinerlei Kennzahlen fŸr Wochentage, Monate oder gar Jahre gelernt werden.

Der ãKalenderrechnerÒ kann všllig stressfrei ãunter FeuerÒ das richtige Monatskalenderblatt fŸr jeden beliebigen Monat zwischen 1900 und 2099 entwickeln. Von diesem Monatskalenderblatt kann man den Wochentag fŸr jeden beliebigen Tag des Monats ablesen.

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SKU: 38762896901

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4.0 ★★★★★
Based on 10 reviews
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A
Verified Purchase
Albert C.
Cuba, US
★★★★★ 5
Smooth edges better than twisting
Works a lot better than the crank style and the counter top electric and you can use the lid to reseal the can if you don't use the whole thing.
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Reviewed in the United States on June 3, 2026
A
Verified Purchase
Amazon Customer
Draper, US
★★★★★ 2
Worked for only 4 months. Now produces metal shards. Dangerous
Pros: Can be used with one hand. I bought this to have after surgery that left me without use of one arm for a few months. The light blinks when you need to charge it. Only needs a 2-3 min charge for enough juice to open a can. Cons: IT QUIT CUTTING CORRECTLY AFTER 4 MONTHS. I now have to use both hands to hold it in place to get it to latch on to the can. It also requires a few rotations around the top to cut through the seal, resulting in METAL SHARDS! The metal shards are super sharp and almost invisible. I stabbed myself with one enough to draw blood. This is dangerous as the metal could fall into the food when pouring from the can.
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Reviewed in the United States on January 10, 2026
C
Verified Purchase
Catibbetts
Whiting, US
★★★★★ 1
Can opener
This product does not work well! It actually doesn't work at all!! Will not cut thru can lids at all. Very disappointing to say the least. I purchased to make things easier only to be left not being able to open dinner 😕. Would not recommend to anyone!!!
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Reviewed in the United States on May 15, 2026
R
Verified Purchase
Roberta Hallahan
Port Orchard, US
★★★★★ 4
Can opener
It doesn't shut off by itself when done and doesn't shut off when I push the button, so after a while it will shut off but when it wants too after you take it off the can ,like 30 seconds. But I do like the way it cuts, a clean cut and lid removal nice.
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Reviewed in the United States on February 2, 2026
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Verified Purchase
GardenGirl
Birmingham, US
★★★★★ 5
So simple to use, I'm amazed
Color: Black
Wonderfully helpful. Description is accurate, shipping was quick. I saw a few poor comments, but I have none so far! The can opener has opened cans of several sizes, from tomato paste to large cans of tomatoes; soup cans to strangely shaped. It's opened 30 or so already without loss of power. It's a little noisy, but about equal to that of a stand up opener. It fits in my drawer, which is less deep than most kitchen drawers. Most of all, it's beyond easy to use for arthritic hands. The ONLY CHALLENGE I have is that it sometimes fails to stop when it should. MANUFACTURER: if you read this and have advice, please share. At this point, I'd say this is a great value for the money.
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Reviewed in the United States on February 18, 2026

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