How sunlight reaches the earth surface?

we know that light is a wave and it requires a medium to propagate. Then how does sunlight reaches earth surface since there is no medium in space.

Are there still idiots who think that CM Punk is leaving?

Bro don't watch that ****. They go into the ring knowing whose gonna win its all set up. Just forget about it

Does it help my baby with colic if I take Magnesium myself and breastfeed him?

I am trying everything known to men to help my baby boy. Before it drives me to madness too... the poor thing hasn't had a break since he was born, neither have I :(

How do I help my guy friend with his crush (without breaking my own heart)?

I'm sure you know there's a big difference between knowing your heart's going to get broken and it actually happening. I think all you can do is be there for him if it all goes wrong. You could talk to your female friend and explain it's ok if she does like him, she may be ignoring her true feelings if she's worried about hurting you, or maybe she doesn't like him at all. Either way you seem determined to stay close to him, which yes does mean you're a good friend, but also means you won't be getting over him anytime soon. I'd just be there as best as you can, but if you realise it's too painful don't think there's anything wrong with taking a step back. All the best :)

What's the best kind of magnesium supplement to take when taking calcium for maximum absorption?

Magnesium hydroxide (found in tablets like Gelusil) often is added to counteract the constipating properties of calcium compounds that are often in many antacids.

What could be causing my Bowel problems?

I had my appendix removed in April. They also removed adhesions that were making my intestines stick to my abdominal wall. 2 weeks after, I start having less bowel movements. I would have a small one maybe once per week. I've had a lot of bloating and pressure and burning type pain in my abdomen. Went to ER a few days ago. They did an enema. It barely worked. The next day I drank a bottle of magnesium citrate. All that came out was water and a few small stools. I did an enema the next day. I had a medium sized movement. Mostly liquid. Yesterday I had a small regular. My stool has been green for a few days. Haven't eaten anything green or food coloring blue. Still very bloated feeling. It hurts in gallbladder/liver area. Gallbladder removed 5 years ago. I'm always tired and sleepy. No energy at all. Also get cold easily. Could adhesions have grown back and constricting my intestines? What should I do? I'm sure the doc will just blow it off. ER said my entire colon was packed with stool. I don't have the urge to go. Appetite is small also. Think I need surgery? By the way, I've been trying stool softeners, milk of magnesia, enema, magnesium citrate, more water, more fiber, and more exercise. Nothing at all is helping.

Calculate the atomic mass of an element from its isotopic abundances and masses.?

I dont have a calculator with me, but multiply the mass times the percent abundance for each isotope, then add them up. 23.985042(.7899) + 24.985837(.10) + 25.982593(.1101) = 24.31