com slash science or drop us a line at d w underscore site tech on facebook d.w. dot science. time to turn now to the marriott how his plants rely on for their reproduction are drawn by sense and color pattern interest like bees carry the pollen from one flower to the stigma of another. 75 percent of our crops from pears to pumpkins rely on polonaises to play a role in reproduction in fact of all flowering plants nearly 90 percent make use of the service they provide. the problem now is that insect diversity is under serious threat some crop plants like rice a wheat get by just fine without pollinators but nearly all nutrient heavy fruit and vegetable species actually depend on them so insects are key to ensuring our
a science question that you ve always wanted answered it and we re happy to help out and send it to us as a video text ovoid smell if we answer it on the show well send you a little surprise as a thank you can i just ask. you ll find as i do w dot com slash science or drop us a line at e w underscore site tech on facebook d.w. dots is. the naturalist alexander from home but who explored large areas of south america rose about the healing properties of the rind of the cinchona tree which indigenous people used to treat a range of elements. later it s active and see malarial ingredients quinidine was identified. him felt was keen to understand the way the peoples of the region live their lives and then destroyed the world. in the latest episode of a series on his travels in the americas we had to ecuador and the legacy of the
a little surprise as a thank you can i just ask. you ll find as i did have a dot com slash science all drop us a line at d w underscore site tech on facebook d.w. dot science. time for al. video of the week this 3 d. printed robot fascinated many of us. it s a model of all robots escapes to an extinct tetrapod that lived during the pearling an era around 219000000 years ago. scientists at berlin s who bought university and the playtex institute of luzon drew on the fossil and fossil tracks to create a robot simulation. called our robots it s made out of motors with flexible plastic and steel parts.
our plan is read write our grid but only if you. do you have a science question that you ve always wanted answered we re happy to help you out send it to us as a video text ovoid smell if we are straight on the show we ll send you a little surprise as a thank you can i just ask. find as i did of you dot com slash science or drop us a line at e.w. underscores site tech on facebook d.w. dot science. when help says to produce green energy all over the world but there are lots of alternative energy sources like giant solar panels on hydroelectric power stations electricity can also be generated from the biomass of sustainable raw materials like great seed of course but wouldn t it be even more practical if we could produce our own electricity at home that very thought gave one inventor an idea. gets
as willing to listen to their human owners is another matter. the problem is read write are great but only a few. do you have a science question that you ve always wanted answered we re happy to help out send it to us as a video text ovoid smale if we answer it on the show we ll send you a little surprise as a thank you can i just ask. you find us a d w dot com slash science or drop us a line at g.w. under school site on facebook d.w. dot science. antibiotics are essential in the battle against harmful bacteria. they don t always work. one reason is that germs can multiply super fast and develop immunity to the antibiotic in question. that s led to the development of so-called multidrug