NASA to grow plants on the moon

NASA has announced that during the Artemis III mission, humans will take their first steps back on the Moon after 50 years and will cultivate lunar-grown plants to return to Earth for the first time..

Known as Lunar Effects on Agricultural Flora (LEAF), the project will collect plant growth and development data to help scientists understand the use of plants grown for human nutrition and life support on the Moon and beyond.

CDU EXPERT: It’s getting hot in here – we need to learn to live with it

Charles Darwin University heat stress expert Dr Sarah Carter. Dr Carter is a member of the Heat and Health Research Incubator group, and has been part of the team implementing the Australian Open heat stress scales.

Dr. Carter is an expert on:

• The impact of heatwaves on the human body, following recent heatwaves in Delhi and Athens.
• How to manage and adapt to heat stress.
• Internal and external factors contributing to heat stress.

"Heatwaves provide significant stress to our systems by way of cardiovascular, renal, and gastrointestinal stress.

Should we worry about Global Warming - and what can we do?

#globalwarming 

Global warming is the increase in the average temperature of the Earth. Many people believe that this is only a myth and that it isn’t really happening. However, we can barely see or feel any change such as in the temperature because there is only a very minor difference. An increase in average temperature of around 1.5 degrees Celsius is all it takes for global warming to occur. By analysing   glacier sizes over time, amount of carbon dioxide in ice sheets, coral reefs and tree rings, scientists can find out a lot about the history of Earth’s climate and what it was like compared to today to get an idea of where Earth is heading towards in the future.

Confirmation Bias: Why people fall for stupid shit

 

Confirmation bias is a cognitive bias that refers to the tendency of individuals to favour information that confirms their preexisting beliefs or values while ignoring or discounting information that contradicts those beliefs or values. In other words, people often seek out, interpret, and remember information in a way that supports their existing viewpoints or expectations, and they tend to dismiss or downplay information that challenges those viewpoints.

Can a rocket work in the vacuum of space?

Yes, a rocket can work in a vacuum. In fact, rockets are specifically designed to operate in the vacuum of space where there is no air or atmosphere. The principle behind a rocket's propulsion is based on Newton's third law of motion, which states that for every action, there is an equal and opposite reaction.

A rocket works by expelling high-speed exhaust gases in one direction, which creates a corresponding force that propels the rocket in the opposite direction. This expulsion of gases is achieved through the combustion of rocket propellant in the rocket engine. The reaction gases are expelled through a nozzle at high speeds, generating thrust that propels the rocket forward.

Unlike an airplane, which requires air to generate lift, a rocket does not rely on atmospheric air for propulsion. Instead, it carries its own oxidizer along with the fuel, enabling it to operate in the vacuum of space where there is no air. This is why rockets are used to launch satellites, explore other planets, and conduct space missions.

More: NASA explains how rockets work