Thursday, June 24, 2021

What is type Blood of People Who seldom Died from Malaria?

Fig 01- A Bird feeder in the yard, just for illustration

World Health Organization (WHO) estimated about 500,000 people died due to malaria worldwide, especially in developing nations every year.

Not surprise that Malaria is one of top 10 diseases in tropical countries. The diseases mainly affect on:

- about 80% to 90% are kids below 5 years old
- majority in rural areas of Africa

Other billion of population in 92 countries are risk to malaria. 6 countries with almost cases and death of Malaria are:

- Nigeria (23%)
- the Democratic Republic of the Congo (11%)
- United Republic of Tanzania (5%)
- Burkina Faso (4%)
- Mozambique (4%)
- Niger (4%).


Fig 02- Outdoor green plants


Fig 03- Succulent plants at outdoor

Luckily, one blood type is less vulnerable to malaria.

The question then: What is type Blood of People Who seldom Died from Malaria?

The simple answer is : O type Blood.

Why?

Because RIFIN protein which causes malaria is less bond to cell of O type blood, hence, the protein is not able to damage cells.

People with O type blood tend to survive if infected by malaria diseases.

Does the fact make you surprise?

Friday, June 4, 2021

Ingenuity is the first Helicopter Flew on Mars – Science 2

Fig 01- Police Helicopter in our City, Baton Rouge, LA

I believe that you know about first helicopter flew on earth. Yes, first helicopter flight was September 14, 1939.

Almost 100 years ago!

The helicopter was invented by Igor Sikorsky, and then built by the United Aircraft Corporation.

Since then, helicopter has been developed and built in great number. It is estimated about 69,728 helicopters in the world.

The most owner of helicopters is the USA. Approximately 10 thousand helicopters belong to USA with 15,000 pilots.

Based on their roles, at least, there are 3 types of helicopters used worldwide now days:

- Utility helicopter
- Search and Rescue helicopter
- Attack helicopter

How about with the first Helicopter Flew on Mars?


Fig 02- The first flight on Mars (credit to NASA)


Fig 03- Sky in our city in the afternoon.

The first helicopter flight on Mars was this year (April 19, 2021) with powered by solar energy.


What character of Mars atmosphere?
- thin atmosphere likes 100,000 feet (30,480 meters) on our earth


Why Ingenuity can fly on Mars?
- Its light, but larger blades spin very fast.

The crucial of this mission that helicopter or other flights are feasible to fly on Mars.