1. When you look at a distant star or planet, you are looking back in time. How far back in time are you looking when you observe Pluto through the telescope from a distance of 5.91 x 10^12m?2.If a person could travel at the speed of light, it would still take 4.3 years to reach the nearest star, Proxima Centauri. How far away, in meters, is Proxima Centauri?( ignore any relativistic effects)3.When you go out in the sun, it is the ultraviolet light that gives you a tan (or burn). The pigment in your skin called melanin is activated by the enzyme tyrosinase, which has been stimulated by ultraviolet light. What is the wavelength of this light if it has a frequency of 7.89 x 10^14Hz?4. IRAS, the Infrared Astronomy Satellite launched by NASA in 1983, had a detector that was supercooled to enable it to measure infrared or heat radiation from different regions of space. What is the frequency of infrared light that has a wavelength of 1.00 x 10^-6m?
Yeah I've seen pictures on car safety websites and the older baby's legs bed at the knees and go off to the side (in convertible car seats not infant carriers) They still say you should leave her rear-facing though. They recommend that because it's tons safer in a head-on collision. It has to do with neck strength and body to head proportions. Babies facing forward can have really severe neck and spinal cord injuries in accidents if they face forward. It's also the law in a lot of placesone year old AND 20 lbs, not sure about Canada though. EDIT: You should buy a convertible car seat if you haven't already. Britax ones are rear-facing to 35lbs, that's what I have.
You ask for ideas As you don't have any, the best idea might be to look at a few comics for inspiration. Pretty simple. Just a a strip showing what can go wrong if you ignore lab safety rules. Someone in lab, no goggles. Then something goes in their eyes. Next at doctors getting treatment. Then going around wearing an eye patch or with a White stick saying I wish I'd followed the lab rules!
