Researchers discover the Earth's inner-inner core-Science Now 32

The video covers four main scientific studies. First, it discusses the discovery of a distinct inner core within Earth's inner core using seismic energy, which may provide insights into the planet's formation. Next, it highlights a study on hazardous chemicals found in wastewater from oil and gas drilling, emphasizing environmental concerns. The third section explores research on wildfires caused by metal fragments, aiming to improve fire prediction models. Finally, it presents advancements in haptic feedback technology, which could revolutionize touchscreen interactions by making virtual keyboards feel real.

What surprising discovery did geologists make about Earth's inner core?

• It is cooling at an unprecedented rate.

• It is composed entirely of water.

• It is larger than the moon.

• It has a distinct inner core of its own.

What did the Duke University study find about wastewater from oil and gas drilling?

• It contains no hazardous chemicals.

• It is safe for human consumption.

• It has high levels of ammonium and iodine.

• It is completely treated by current practices.

What is one of the causes of wildfires in the US according to the NSF-funded engineers?

• Lightning strikes

• Hot metal fragments

• Volcanic eruptions

• Spontaneous combustion

How do researchers believe haptic technology could benefit users?

• By reducing screen time

• By increasing battery life

• By improving internet speed

• By making virtual keyboards feel real

What did researchers discover about how the brain interprets tactile feedback?

• It always registers multiple bumps as separate.

• It registers two identical bumps as one if they match finger spacing.

• It cannot interpret tactile feedback at all.

• It registers tactile feedback as visual stimuli.