Difference between active and passive immunization: The aim of active vaccination is to establish long-term effective protection. For this purpose, the body receives inactive or only fragments of pathogens. Weakened pathogens can no longer cause serious illness. So, the vaccine simulates infection. The body reacts by producing antibodies and so-called memory cells. If a person… Continue reading Active and Passive Immunization – What is the Difference?
This animation shows how the new Coronavirus is spreading in Spain. Under the same model and two different scenarios: with and without confinement. They used real data on how this propagation takes place. Data from the census, from the 62 most populated cities, from the Ministry of Health, etc. Covering a total of 20 million… Continue reading Simulation of the spread of SARS-2 Coronavirus with confinement
What’s special about science? Knowledge can be of different types. Knowing where the nearest store to your house is, is empirical knowledge. A herbal remedy is traditional knowledge. There are some who say that a divine being can reveal knowledge to you. But when it comes to distinguishing what’s true regardless of any circumstances or… Continue reading What is science simple definition
Explore the surface of the moon with rovers the size of a Roomba in the future. Of course, this also requires correspondingly compact instruments. The NASA mini moon rover is the answer. To collect ideas for this, the NASA Jet Propulsion Laboratory (JPL) http://jpl.nasa.gov is now using crowdsourcing. The competition “Honey, I Shrunk the NASA Payload”… Continue reading NASA mini moon rover crowdsourcing (NASApayload)
Germany ranked 5th in terms of infected with SARS-CoV-2. However, the death rate from Coronavirus in Germany is much lower than in most of the countries affected by the virus. The world anti-leaders in the fight against the COVID-19 pandemic – USA, Spain and Italy have more confirmed cases. Germany has more than 108,000 confirmed… Continue reading Why Coronavirus Mortality Rate is Lower in Germany?
What’s time? It’s hard to explain. Time is actually a sequence of moments. Time has always been there, and originated at the beginning of everything. It’s hard to explain, I know. Time can be measured, with a clock, a sundial, or an hourglass. But is that time right? Measure time? In the past, people tried… Continue reading What is time?
The star LAMOST J040643.69 + 542347.8 is located in the outer arm of the Milky Way. Astrophysicists discovered the fastest spinning star in the Milky Way Galaxy. Its distance of about 30 thousand light years from the Sun, and its upper layers rotate at a record high speed. About 540 kilometers per second, which is… Continue reading Chinese astrophysicists discovered the fastest rotating star of the Milky Way