Due wednesday by 11: 59pm points 20 submitting a file upload in this lab you will use hubble's law to find the distances to eight different clusters of galaxies. the galaxy clusters you will use are all abell clusters, (relatively) nearby groups of galaxies named after the astronomer who studied them: george abell. as you learned, hubble's law relates the recessional velocity (v) in km/s to distance (d) in megaparsecs (mpc) for galaxies in our universe: v = h ⋅ d the redshifts of most galaxies in each cluster are easily available from their spectra. you will find the average redshift of galaxies in each cluster, and then convert this to velocity, and then to distance. finally, you will find the lookback time to the most distant cluster. navigate to voyages: distances to galaxies (links to an external site.)links to an external site.. for each cluster in turn, click its link under "first, observe and appreciate" to open it in the skyserver navigate tool. follow the directions under "record the redshift to each cluster" t

You have been consulted by the mobile phone company hookup about a new augmented reality product called “brows”. they want to develop an alternative to google glasses, which, you recall, is a proposed new product which plans to superimpose a whole range of wireless google services over the user’s ordinary vision of the world. these appear in little circles and ovals, and let you phone people, take photographs, navigate across cities and inside buildings, find shops and update your social media. brows would do this too, but not be limited to special google services. the user would wear a small cylinder-shaped device designed to fit on top of their existing eyewear (glasses or sunglasses). it would project a reversed image onto the inside of the lenses, the reflection of which would be in focus for the user. instead of voice control, the user would control the device by eye and neck movements, which the device would track. the device would connect via bluetooth to the user’s phone, which would supply most of the computing power and wireless connectivity. hookup also wants to know what existing services would be most in demand, and which would not work well with brows. using your knowledge of augmented reality, wearable technology and interface design, is the project feasible? if not, why not? if feasible, how could the product need to be modified for a better experience?

In the nineteenth century, gregor mendel first determined some basic rules of genetics that have been observed throughout all types of life. no observations have disproved these basic rules of genetics. charles darwin developed the idea of biological evolution around the same time, but he was unaware of mendel’s discoveries in genetics. over a century later, darwin’s idea of evolution was modified in order to incorporate mendel’s rules of genetics along with the other evidence that darwin had used. what is most likely the relationship between mendel’s rules of genetics and darwin’s idea of biological evolution? a.)mendel’s genetics states laws that are now part of the theory of biological evolution. b.)biological evolution states laws that are part of mendel’s theory of genetics. c.)mendel’s genetics replaced darwin’s entire concept of biological evolution. d.)biological evolution is a law that explains why all genetics exist.

Arailroad car collides with and sticks to an identical railroad car that is initially at rest. after the collision, the total kinetic energy of the two cars is a) the same as before. b) half as much as before. c) one third as much as before. d) one fourth as much as before. e) twice as much as before.