4 Awesome Discoveries You Probably Didn’t Hear About This Week – Episode 12

This week's discoveries include robots inspired by ants' tunneling efficiency, a study on how head-neck angles affect concussion risk, a Wi-Fi-based security screening system, and the positive impact of forests on nutrition in developing countries. Robots mimicking ants could aid in disaster recovery and space missions. The concussion study suggests helmet design improvements, while the Wi-Fi system offers a non-invasive security solution. Protecting forests can enhance children's nutrition, challenging the notion that more farmland is needed.

What percentage of fire ants were responsible for the majority of tunneling activity?

• 90%

• 50%

• 30%

• 70%

How does a change in head-neck angle affect concussion risk?

• It only affects the risk of other injuries.

• It has no effect on concussion risk.

• It decreases the risk of concussion.

• It increases the risk of concussion.

What technology is used in the new security screening system?

• Wi-Fi

• Infrared

• Ultrasound

• X-ray

What is the accuracy range of the suspicious object detection system?

• 70% to 80%

• 100%

• 50% to 60%

• 90% to 99%

According to the study, what environmental factor is linked to better nutrition in children from developing countries?

• Proximity to rivers

• Proximity to forests

• Access to urban areas

• Availability of farmland