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Modern Snakes Evolved From Tough Survivors of the Dinosaur-Killing Asteroid
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Coronavirus and Cognitive Decline: Does COVID-19 Decrease Intelligence?
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Das Mehrfamilienhaus mit Solardach in Huttwil liefert Heizwärme und Warmwasser zur ganzjährigen Versorgung der acht Wohnungen. Bild: Jenni Energietechnik AG
Das Mehrfamilienhaus in Huttwil enthält einen Warmwasserspeicher (roter Tank) mit 110 m³ Fassungsvermögen. Bild: Jenni Energietechnik AG
Die spiralförmigen Rohre dienen als Wärmetauscher, welche die Solarwärme in den saisonalen Speicher übertragen. Bild: Jenni Energietechnik AG
Bislang werden saisonale Warmwasserspeicher in der Regel innerhalb des Hauses gebaut. Bild: Schlussbericht OPTSAIS
Typische Temperaturentwicklung im Jahresverlauf auf verschiedenen Höhen des Speichers. Bild: Schlussbericht OPTSAIS
An diesem 2 m3 grossen Tank haben die OPTSAIS-Forscher ihre Simulationsergebnisse validiert. Bild: Schlussbericht OPTSAIS
Pfizer-BioNTech Vaccine Proven 88% Effective Against COVID-19 Delta Variant
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What Makes the Delta Variant Different Than Previous Strains?
The biggest difference between the delta variant and other strains is that it is significantly more contagious. According to scientists at Yale Medicine, the delta variant is 50% more contagious than the alpha variant, which originated in the United Kingdom and is the most common strain of the virus seen in Illinois.
The alpha variant was 50% more contagious than the original strain of COVID-19, meaning that the number of people that could potentially be infected by each COVID-positive individual is significantly higher. According to experts, the average COVID-positive individual, in a completely unmitigated environment without masks or other barriers, would infect an average of 2.5 people.