Examlex
The NASA Curiosity rover exploring Mars carries a number of scientific instruments, including a spectrograph (a device for recording a spectrum), and a high intensity laser. On several occasions, Curiosity has fired its laser at the surface of a rock sample, while observing the process with a spectroscope. The laser is intense enough to vaporize the atoms on the surface of the sample into a hot, excited gas.
Why is this a useful technique for the rover to employ?
Scientific Method
A systematic and empirical approach to research in which a problem is identified, relevant data are gathered, a hypothesis is formulated from these data, and the hypothesis is empirically tested.
Theory
A system of ideas intended to explain something, based on general principles independent of the thing to be explained.
Hypothesis
A testable prediction or explanation about a phenomenon that acts as a basis for further investigation.
Psychoanalytic Approach
A theory of psychology introduced by Sigmund Freud that emphasizes unconscious processes and childhood experiences as determinants of psychological development and issues.
Q2: Which planet is often called our most
Q12: The first stars formed in the Universe
Q17: Describe two experiments that provide evidence of
Q18: The Big Bang is a theory describing
Q34: The star Wolf 359 is 7.7 light
Q47: Using the example of a football field,
Q49: What is the function of the receiver
Q50: Which power of a telescope reveals fine
Q53: Which is an asterism of Pegasus?<br>A) Great
Q69: The Chandrasekhar limit defines the _.<br>A) maximum