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The Better Meat Substitute

Can new and improved meat analogues help us control our damaging desire for animal flesh?

12 min read
The Better Meat Substitute
Photo: Dan Saelinger; Stylist: Dominique Baynes; Food Stylist: Carol Ladd

In one typical minute on this earth, people kill at least 109 339 chickens, 2630 pigs, 922 sheep, 781 goats, and 557 cows, plus a very large number of ducks, horses, turkeys, and rabbits, as well as three camels. And one singularly unfortunate mule. Add it all up and every week well over a billion animals are slaughtered for food, according to the Food and Agriculture Organization of the United Nations.

You may or may not find the death of so many animals unsettling, but it’s hard for anyone to ignore the undisputed environmental and health consequences [PDF] of this massive meat consumption. They include higher rates of greenhouse-gas emissions, water pollution, deforestation, and biodiversity loss. And possibly colorectal cancer as well.

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This Wearable Neck Patch Can Diagnose Concussions

Self-powered sensors convert neck strain into electrical pulses to detect head trauma in athletes

4 min read
image of back of man's head and shoulders with a patch taped to his lower neck; right image is a time lapse image of a man's head extending far forward and back, simulating a case of whiplash

The prototype patch in this research is shown in (a) on the left; on the right (b) is the kind of head rotation that can yield an electrical response from the patch.

Juan Pastrana

Nelson Sepúlveda was sitting in the stands at Spartan Stadium, watching his hometown Michigan State players bash heads with their cross-state football rivals from the University of Michigan, when he had a scientific epiphany.

Perhaps the nanotechnologies he had been working on for years—paper-thin devices known as ferroelectret nanogenerators that convert mechanical energy into electrical energy—could help save these athletes from the ravages of traumatic brain injury.

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Video Friday: PoKeBo Cubes

Your weekly selection of awesome robot videos

2 min read
A young girl looks at a cluster of three simple robots facing each other on a table

Video Friday is your weekly selection of awesome robotics videos, collected by your friends at IEEE Spectrum robotics. We also post a weekly calendar of upcoming robotics events for the next few months. Please send us your events for inclusion.

RoboCup 2022: 11 July–17 July 2022, BANGKOK
IEEE CASE 2022: 20 August–24 August 2022, MEXICO CITY
CLAWAR 2022: 12 September–14 September 2022, AZORES, PORTUGAL
ANA Avatar XPRIZE Finals: 4 November–5 November 2022, LOS ANGELES
CoRL 2022: 14 December–18 December 2022, AUCKLAND, NEW ZEALAND

Enjoy today’s videos!

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A Multiphysics Approach to Designing Fuel Cells for Electric Vehicles

White paper on fuel cell modeling and simulation

1 min read
Comsol Logo
Comsol

Fuel cell electric vehicles (FCEVs) often reach higher energy density and exhibit greater efficiency than battery EVs; however, they also have high manufacturing costs, limited service life, and relatively low power density.

Modeling and simulation can improve fuel cell design and optimize EV performance. Learn more in this white paper.