The communiqué issued on Monday at the end of this calendar year’s summit bore many similarities towards the 1 issued a calendar year prior — it condemned Israeli aggression in Gaza, once again calling for an arms embargo. Low international oil rates throughout 2015 and 201

When a beam of light crosses the boundary among a vacuum and An additional medium, or among two distinctive media, the wavelength on the light modifications, though the frequency remains continuous. Snell’s legislation governs the imaging properties of lenses. Light rays passing by way