An angiogram uses X-rays and a special dye (contrast) to take pictures of the arteries in your brain, heart, and kidneys. The dye is injected into a small tube or catheter into an artery in your groin or (sometimes) your arm.
As the cloud collapses the force of gravity drawing the cloud inward gradually becomes stronger because the strength of gravity follows an inverse square law with distance. hoâ¦pe that helps.
These other elements were produced inside stars and during supernova explosions, and were disbursed into the interstellar medium by supernova remnants.Eventually, the remnants cool and collapse to form interstellar clouds from which new stars and planets can be formed.Solution: Hydrogen and helium.hese other elements were produced inside stars and during supernova explosions, and were disbursed into the interstellar medium by supernova remnants. Eventually, the remnants cool and collapse to form interstellar clouds from which new stars and planets can be formed. Solution: Hydrogen and helium.