russian candidate and space agencies and has been visited by astronauts from 15 different kuntz trees but how does its cost compare to other big scientific projects. the large hedron clyder in southern france costs $10,000,000,000 to build. it discovered the higgs-bosson partic particle. compare that to $9,000,000,000 spent in cancer and nasa row bootic mars recover "curiosity" still exploring the martian surface but it cost 2 and a h$2 half billion dollars. research on space station has included looking at the prolonged effects of space on humans, important if there is to be further manned exploration of the solar system. >> you haven't seen the sort of noble prize winning discovery coming off of the back of this, at least not yet. what you have seen is the construction of the permanent lab. >> that's valuable to a whole range of sciences from medicine, semi conductor physics. >> important for your health. so today i have chosen dried spinach. >> it's not all serious science on board. canadian astronought chris headfield introduced people to life and research on the space station ear

muslim chinese are the ones who go abroad to have a visit of some other kuntz trees such as iran. >> but in order to handle more people, the country needs investments, including on the ski field. the equipment is old over the past 37 to 38 years, it's remained the same. three new facilities have been added but the ski field has so much potential. the whole mountain can be used and i hope investors in the company that supervisors this result invest more and make it bigger and bigger so we can introduce it to the world, security its future and make money. >> it's not hard to see why it is known as one of the best places for skiing and snowboarding, nots just in the middle east but throughout the entire world. more than 2,000 people come heave every week, iranian's and foreigners as well. not just amateurs and tourists. iran's national team for skiing and snowboarding also use these slopes for training. >> iranians have a long had the country's best sides to themselves. with more tourists, they are learning to share them for the benefit of everyone. saray linny, dizine, iran. >> it's be

. >> so kuntz trees are moving toward savory cycling and reuse of ewaste. it's feared the increasing demand for electronics will overwhelm existing facilities. this could see millions of tons of waste dumped into landfills. the u.n. report says 48.9 milli 48.9 million tons of e waste was produces last year. this is expected to rise to 65.4 million tons by 2017. the largest producers are china and the u.s. they produced 11 million tons and 10 respectively last year. each chinese % produced 5 to do 40 kill grams of high level tash this compares to americans who produced almost six times this, 29.8 kilograms. a u.n. initiative has created an online interacting map that looks at one 84 current trees and compares how much e waste each generates and how much it disposes. >> the e waist issue is an issue for both, developing in transition countries but the developed world. even in the developed world, we have the issue that we are facilitiesing here low collection rates despite having very good e waste management systems in plates. so the consumer also has to play

has a higher proportion of lower income students, than many of these kuntz, the u.s. a more diverse population, including immigrant groups in many of these countries. >> actually, with our common belief -- on income that is not actually right, in terms of child poverty the u.s. is around the average, among many countries, it has a more diverse population but even if you account for all of those factors, you know, to take vietnam a country that is very -- has poverty and still it comes out better than the average. so quality is a challenge, but you can actually see some countries very good at moderating inequality and very good at helping disadvantaged students actually to excel, you see it in asia and sipping pore and japan, you see it in northern europe where you have children coming out of poverty, and the education system then assures those children get the best educational opportunities. >> these numbers are inevitably pounced upon by advocates of all kinds, right? once we know the .. results of the tests, can we therefore say policy x is the right way to go? poli