Can bats hear radio waves? High frequency noise Ultra high frequency noise transmitted via Wi-Fi and mobile phone masts (2.4 and 5 gigahertz GHz) are considered too high for bats to hear. In addition, many other species produce social calls below these frequencies (<20 kHz). However, bats exhibit an ability to tune out the calls […]
Are baseball bats good for self defense?
Are baseball bats good for self defense? A baseball bat can be an effective weapon for self-defense if used properly. While many people may not have a gun or other weapon to repel an intruder, you can easily find a baseball bat if you’ve ever played baseball or you have kids who play baseball. How […]
What is narcissistic victim syndrome?
What is narcissistic victim syndrome? If someone is in, or has been in, a relationship with someone who is a narcissist, they may be experiencing something called Narcissistic Victim Syndrome because of psychological / physical abuse in their relationship. How do you survive a narcissistic abuser? Learning to identify tactics often used by people with […]
Do ecosystems eventually stop changing?
Do ecosystems eventually stop changing? Lesson Summary. Ecological succession is the process in which the numbers and types of species in an ecosystem change over time. Most ecosystems are disturbed too often to attain a final, stable climax community. Do ecosystems always revert back to their original state? Ecosystems always revert back to their original […]
What are the 5 types of vertebrae?
What are the 5 types of vertebrae? The spine is split into five regions: the cervical, thoracic, lumbar, sacral, and coccyx. The vertebrae of the sacrum and coccyx are fused, but those of the cervical, thoracic, and lumber regions are free to articulate. What is the spinal cord called? The spinal cord is an extension […]
What are some dangers of radio waves?
What are some dangers of radio waves? Large doses of radio waves are believed to cause cancer, leukaemia and other disorders. Some people claim that the very low frequency field from overhead power cables near their homes has affected their health, although this has not been reliably proven. How can radio waves affect humans? Radiofrequency […]
How often do stores track down shoplifters?
How often do stores track down shoplifters? 27. Police and merchant data shows that shoplifters are caught an average of only once every 48 times they commit an act of thievery. Do police come to your house for shoplifting? The police can come to your house to investigate the offense. The statute of limitations for […]
Why do valence electrons react?
Why do valence electrons react? Within each group of metals, reactivity increases as you go down the group. The valence electrons are less tightly bound and easier to remove, because they are farther away from the nucleus of the atom. A nonmetal tends to attract additional valence electrons to attain a full valence shell. Is […]