Article Image

From BigDog to SpotMini: Tracing the evolution of Boston Dynamics robo-dogs

Launched in 1992, Boston Dynamics has introduced some of the most advanced robots around, especially when it comes to replicating the movement of animals, like it's canine-inspired machines.

Boston Dynamics makes some of the most badass robotic beasts around. Launched in 1992 as a spin off from the Massachusetts Institute of Technology, the company has created some remarkably sophisticated machines, especially when it comes to replicating animal movements. It took more than a decade for the company’s first robots to emerge from its lab, but since then, Boston Dynamics has positioned itself as a leader in the field, unveiling robots that can sprint faster than Usain Bolt, leap onto buildings, and backflip better than most humans. But its most well-known creations are its canine-inspired robots.

Here’s a list of the evolutionary milestones made by Boston Dynamics, from it’s first iteration of BigDog to the commercialization of SpotMini.

Boston Dynamics first hit the scene in 2005 with the introduction of a three-foot-long, two-and-a-half-foot-wide, 240-pound robot named BigDog. Funded by the Defense Advanced Research Projects Agency (DARPA) — which specializes in high-risk, high-yield investments — BigDog was designed to be a pack mule for soldiers, capable of carrying 340 pounds, climbing 35-degree inclines, and no doubt striking fear into the heart of opposition.

If BigDog was the size of a beefy Great Dane, LittleDog was unveiled as a scrappy chihuahua. Also funded by DARPA, LittleDog represented the smallest four-legged robot in the Boston Dynamics product line. Powered by lithium polymer batteries, LittleDog had a 30-minute operation limit, could be controlled remotely, and was capable of crawling — albeit slowly — across rocky terrain. Whereas BigDog was built by Boston Dynamics for Boston Dynamics, LittleDog was developed as a testbed for use by third parties.

When AlphaDog Proto came onto the scene in 2011, Boston Dynamics’ military aspirations became ever more transparent. Thanks to funding from DARPA and the Untied States Marine Corps, AlphaDog Proto was capable of varying a 400-pound payload during a 20-mile mission through varied terrain. An internal combustion engine served to quiet the noisier BigDog — which came with a rather loud rumble — making it more appropriate for missions in the field.

The next evolution of AlphaDog Proto was the Legged Squad Support System (LS3), which proved more versatile and robust than it’s predecessor. An array of sensors along the LS3 let it follow its human leader, while simultaneously navigating rough terrain to avoid obstacles. If tipped over, the robot could roll itself upright.

BigDog returned with a new trick in 2013 — arguably its most intimidating to date. This time, equipped with an “arm,” the robot could pick up a 35-pound cinder block and vigorously toss it up to 17 feet behind it. To do so, BigDog was trained to use its legs and torso as leverage, gripping and slinging the rock like a drunken Olympian throwing discus.

In 2015, Boston Dynamics unveiled it’s latest creation — an electrically powered, hydraulically actuated robot named Spot. At just 160 pounds, Spot was significantly smaller than previous canine-inspired models, and was designed for both indoor and outdoor activities. Sensors in its head allowed it navigate rocky terrain and avoid obstacles in transit. Spot could capably climb stairs and ascend hills, making it more versatile than its beefier forebears.

We got a glimpse of Spot’s little brother, SpotMini, in 2016. Weighing in at 55 pounds, SpotMini was by far the smallest — and most mischievous — Boston Dynamics robot yet. Promoted as all-electric, meaning there were no hydraulics involved, SpotMini boasted 90-minutes of operation on a single charge, a slew of sensors that gave the robot advanced navigation capabilities, and the ability to perform some basic tasks autonomously. SpotMini sported an optional arm and gripper that let it pick up fragile objects and right itself after slipping on a banana peel.

In November 2017, Boston Dynamic introduced the new and improved SpotMini, a yellow robot whose fluid movements showed significant improvement over the more jerky prototype. But it wasn’t until a few months later that the robot’s robustness was demonstrated in a series of videos showing the machine pulling a door open, deftly putting its leg in front, and even working against one of the many Boston Dynamics engineers who seem hellbent on breaking its stride.

A video posted by Boston Dynamics in May of 2018 shows just how far its SpotMini has come. Equipped with a sophisticated navigation system, the robot is able to autonomously navigate through the company’s offices and lab, following a path it had previously mapped out during a manually driven run. This video was soon followed by news that, after nearly three decades, Boston Dynamics will make the SpotMini commercial available in 2019.

Google has been finding more ways to make Gemini a part of your daily routine, from putting together playlists to ordering groceries through your favorite apps. Now it's expanding those capabilities to more services, with Google Search joining in, too.

The company has announced a new Connected Apps Platform that makes it easier for developers to bring their services to both Gemini and Search. Alongside this, Google is adding new partners to its growing lineup, bringing more of the apps people already use into its AI ecosystem.

In the broad context of AI and its perceived harms, health and medical risks often pop up in the conversation. The warnings even come from frontier AI labs, such as ChatGPT-maker OpenAI and Anthropic, both of which have warned about misusing AI to cook up bioweapons. Security experts have already spotted a few such incidents in the wild, especially with the usage of AI models without any solid guardrails. 

Well, it appears that the risks run deeper. As per an analysis appearing in the British Medical Journal (BMJ), AI bots are now being deployed to influence public policies governing health risks to citizens. In this instance, an attempt was made using AI bots to thwart regulations that aim to restrict the sale of disposable vapes, all while disguising the manipulation efforts as a response from real humans. 

What if checking your drinking water for dangerous chemicals were as simple as plugging a tiny gadget into your smartphone? Researchers in Japan have developed a compact sensor that could make that possible, potentially bringing sophisticated water contamination testing out of expensive laboratories and into people's hands.

Scientists at the Okinawa Institute of Science and Technology (OIST) have created a portable device capable of detecting extremely low concentrations of PFAS, commonly known as "forever chemicals." The findings were published in the journal Biosensors and Bioelectronics, which demonstrate how an inexpensive sensor and a smartphone could make identifying potentially harmful chemicals in water a lot easier.