a helmet made out of might sound bizarre, but for boston, schubert and his 2 colleagues, it makes perfect sense. back at the lab in the technical university in berlin. all they need to do is to take the cells of the tin, the fungus, and mix them into culture. this is then added to hemp oist, a perfect snack for the fungus. within some 10 days, its roots, the my syria, saw that defied the contents of the back it's a shock absorbing material that can compete with petroleum based materials in many ways. that was our main motivation. there are so many products, materials that end up in the trash can, such as e.p.a.'s foam expanded polystyrene. that's the material that we're replacing in this helmet makes up 30 percent of plastic waste in landfills worldwide. that's a lot of first test said shown that the helmet can even outperform conventional ones in safety terms. the team still needs to come up with a sustainable outer shell and to ensure that the product is long lasting. once they've sought those problems, they want to go into business. almost one in 4 cyclists in germany wear a helmet that time schmidt, another by a technologist at the technical un