1/43 Designed by Pierpaolo Lazzarini from Italian company Jet Capsule. The I.F.O. is fuelled by eight electric engines, which is able to push the flying object to an estimated top speed of about 120mph. Jet Capsule/Cover Images
2/43 A humanoid robot gestures during a demo at a stall in the Indian Machine Tools Expo, IMTEX/Tooltech 2017 held in Bangalore Getty Images
3/43 A humanoid robot gestures during a demo at a stall in the Indian Machine Tools Expo, IMTEX/Tooltech 2017 held in Bangalore Getty Images
4/43 Engineers test a four-metre-tall humanoid manned robot dubbed Method-2 in a lab of the Hankook Mirae Technology in Gunpo, south of Seoul, South Korea Jung Yeon-Je/AFP/Getty Images
5/43 Engineers test a four-metre-tall humanoid manned robot dubbed Method-2 in a lab of the Hankook Mirae Technology in Gunpo, south of Seoul, South Korea Jung Yeon-Je/AFP/Getty Images
6/43 The giant human-like robot bears a striking resemblance to the military robots starring in the movie 'Avatar' and is claimed as a world first by its creators from a South Korean robotic company Jung Yeon-Je/AFP/Getty Images
7/43 Engineers test a four-metre-tall humanoid manned robot dubbed Method-2 in a lab of the Hankook Mirae Technology in Gunpo, south of Seoul, South Korea Jung Yeon-Je/AFP/Getty Images
8/43 Waseda University's saxophonist robot WAS-5, developed by professor Atsuo Takanishi Rex
9/43 Waseda University's saxophonist robot WAS-5, developed by professor Atsuo Takanishi and Kaptain Rock playing one string light saber guitar perform jam session Rex
10/43 A test line of a new energy suspension railway resembling the giant panda is seen in Chengdu, Sichuan Province, China Reuters
11/43 A test line of a new energy suspension railway, resembling a giant panda, is seen in Chengdu, Sichuan Province, China Reuters
12/43 A concept car by Trumpchi from GAC Group is shown at the International Automobile Exhibition in Guangzhou, China Rex
13/43 A Mirai fuel cell vehicle by Toyota is displayed at the International Automobile Exhibition in Guangzhou, China Reuters
14/43 A visitor tries a Nissan VR experience at the International Automobile Exhibition in Guangzhou, China Reuters
15/43 A man looks at an exhibit entitled 'Mimus' a giant industrial robot which has been reprogrammed to interact with humans during a photocall at the new Design Museum in South Kensington, London Getty
16/43 A new Israeli Da-Vinci unmanned aerial vehicle manufactured by Elbit Systems is displayed during the 4th International conference on Home Land Security and Cyber in the Israeli coastal city of Tel Aviv Getty
17/43 Electrification Guru Dr. Wolfgang Ziebart talks about the electric Jaguar I-PACE concept SUV before it was unveiled before the Los Angeles Auto Show in Los Angeles, California, U.S Reuters
18/43 The Jaguar I-PACE Concept car is the start of a new era for Jaguar. This is a production preview of the Jaguar I-PACE, which will be revealed next year and on the road in 2018 AP
19/43 Japan's On-Art Corp's CEO Kazuya Kanemaru poses with his company's eight metre tall dinosaur-shaped mechanical suit robot 'TRX03' and other robots during a demonstration in Tokyo, Japan Reuters
20/43 Japan's On-Art Corp's eight metre tall dinosaur-shaped mechanical suit robot 'TRX03' Reuters
21/43 Japan's On-Art Corp's eight metre tall dinosaur-shaped mechanical suit robot 'TRX03' performs during its unveiling in Tokyo, Japan Reuters
22/43 Singulato Motors co-founder and CEO Shen Haiyin poses in his company's concept car Tigercar P0 at a workshop in Beijing, China Reuters
23/43 The interior of Singulato Motors' concept car Tigercar P0 at a workshop in Beijing, China Reuters
24/43 Singulato Motors' concept car Tigercar P0 Reuters
25/43 A picture shows Singulato Motors' concept car Tigercar P0 at a workshop in Beijing, China Reuters
26/43 Connected company president Shigeki Tomoyama addresses a press briefing as he elaborates on Toyota's "connected strategy" in Tokyo. The Connected company is a part of seven Toyota in-house companies that was created in April 2016 Getty
27/43 A Toyota Motors employee demonstrates a smartphone app with the company's pocket plug-in hybrid (PHV) service on the cockpit of the latest Prius hybrid vehicle during Toyota's "connected strategy" press briefing in Tokyo Getty
28/43 An exhibitor charges the battery cells of AnyWalker, an ultra-mobile chasis robot which is able to move in any kind of environment during Singapore International Robo Expo Getty
29/43 A robot with a touch-screen information apps stroll down the pavillon at the Singapore International Robo Expo Getty
30/43 An exhibitor demonstrates the AnyWalker, an ultra-mobile chasis robot which is able to move in any kind of environment during Singapore International Robo Expo Getty
31/43 Robotic fishes swim in a water glass tank displayed at the Korea pavillon during Singapore International Robo Expo Getty
32/43 An employee shows a Samsung Electronics' Gear S3 Classic during Korea Electronics Show 2016 in Seoul, South Korea Reuters
33/43 Visitors experience Samsung Electronics' Gear VR during the Korea Electronics Grand Fair at an exhibition hall in Seoul, South Korea Getty
34/43 Amy Rimmer, Research Engineer at Jaguar Land Rover, demonstrates the car manufacturer's Advanced Highway Assist in a Range Rover, which drives the vehicle, overtakes and can detect vehicles in the blind spot, during the first demonstrations of the UK Autodrive Project at HORIBA MIRA Proving Ground in Nuneaton, Warwickshire PA wire
35/43 Chris Burbridge, Autonomous Driving Software Engineer for Tata Motors European Technical Centre, demonstrates the car manufacturer's GLOSA V2X functionality, which is connected to the traffic lights and shares information with the driver, during the first demonstrations of the UK Autodrive Project at HORIBA MIRA Proving Ground in Nuneaton, Warwickshire PA wire
36/43 Ford EEBL Emergency Electronic Brake Lights is demonstrated during the first demonstrations of the UK Autodrive Project at HORIBA MIRA Proving Ground in Nuneaton, Warwickshire PA
37/43 Full-scale model of 'Kibo' on display at the Space Dome exhibition hall of the Japan Aerospace Exploration Agency (JAXA) Tsukuba Space Center, in Tsukuba, north-east of Tokyo, Japan EPA
38/43 Miniatures on display at the Space Dome exhibition hall of the Japan Aerospace Exploration Agency (JAXA) Tsukuba Space Center, in Tsukuba, north-east of Tokyo, Japan. In its facilities, JAXA develop satellites and analyse their observation data, train astronauts for utilization in the Japanese Experiment Module 'Kibo' of the International Space Station (ISS) and develop launch vehicles EPA
39/43 The robot developed by Seed Solutions sings and dances to the music during the Japan Robot Week 2016 at Tokyo Big Sight. At this biennial event, the participating companies exhibit their latest service robotic technologies and components Getty
40/43 The robot developed by Seed Solutions sings and dances to music during the Japan Robot Week 2016 at Tokyo Big Sight Getty
41/43 Government and industry are working together on a robot-like autopilot system that could eliminate the need for a second human pilot in the cockpit AP
42/43 Aurora Flight Sciences' technicians work on an Aircrew Labor In-Cockpit Automantion System (ALIAS) device in the firm's Centaur aircraft at Manassas Airport in Manassas, Va. AP
Bitcoin tumbled about 20% Tuesday.
The price of the volatile digital currency dipped below $11,000 around 5 p.m. ET on Tuesday, its lowest level in more than a month, according to data from CoinDesk.com.
Other popular cryptocurrencies ethereum and ripple also posted double-digit losses.
It's unclear why bitcoin fell. Cryptocurrency is a murky market with frequent swings.
"Volatility is quite common in the cryptocurrency world," said Mati Greenspan, a Tel Aviv-based analyst at investment firm eToro.
The plunge follows a Bloomberg report on Monday that Chinese officials were stepping-up measures to limit cryptocurrency trading, which is already banned on exchanges.
Related: What is bitcoin?
Investors in South Korea and Japan, the two largest cryptocurrency trading nations, were sitting on the sidelines Tuesday waiting for the regulatory uncertainty to clear before placing further bets, said Greenspan. He believes the light trading volume caused bitcoin's price to plunge.
Bitcoin approached a record $20,000 in mid-December as it launched on futures exchanges in the United States. But it has since fallen sharply on intense regulatory scrutiny.
Related: Hackers take advantage of bitcoin's wild ride
Trading is booming in South Korea, but officials began clamping down late last month.
South Korea banned opening anonymous virtual currency accounts and put in place new laws giving authorities power to shut down digital currency exchanges. Officials are currently weighing halting trading on exchanges.
--CNNMoney's Daniel Shane contributed to this story.
The price of a bitcoin has just plummeted by over $1,300.
Having been on the slide in recent days, in large part seemingly due to new regulatory efforts to calm the enthusiastic crypto market in South Korea, chart analysis had indicated that bitcoin would recover and likely return to $15,000 levels today. However, that did not happen.
The cryptocurrency opened today's session at $13,585, and reached a high of $13,601 before the sudden tumble at soon after 07:00 UTC that saw the price drop from $13,210 down to $11,850 at 08:30 UTC. That's a fall of $1,360 in just 1.5 hours.
The drop puts the price of a bitcoin at a month low. Dec. 5 saw bitcoin at a similar level, however, that was when the cryptocurrency was climbing fast on the way to setting a new price record around $20,000, as the launch of bitcoin futures contracts from CME Group and CBOE was being anticipated by the trading community.
At press time, bitcoin had recovered slightly, and was trading at $12,195 – down 10 percent for today, according to CoinDesk's Bitcoin Price Index.
The news comes as the wider cryptocurrency market is seeing losses. All the top 20 cryptocurrencies by market capitalization are in the red today, with ethereum down 14 percent, Ripple down 21 percent and bitcoin cash down 19 percent over the last 24 hours, according to CoinMarketCap data.
The overall market cap for all tokens is at $584.9 billion at press time – down from a high of $832 billion on Jan. 7.
Skydivers image via Shutterstock
The leader in blockchain news, CoinDesk is an independent media outlet that strives for the highest journalistic standards and abides by a strict set of editorial policies. Have breaking news or a story tip to send to our journalists? Contact us at news@coindesk.com.
Disclaimer: This article should not be taken as, and is not intended to provide, investment advice. Please conduct your own thorough research before investing in any cryptocurrency.
Last week, it emerged that South Korea was reportedly moving to rein in speculative cryptocurrency trading with a potential bill to ban cryptocurrency trading. The country's government has since toned down its stance, and on Monday said it would only make a decision on how to move forward after "sufficient consultation and coordination of opinions."
Bitcoin dropped more than 19 percent to a low of $10,969.15 on Tuesday, its lowest since early December, according to CoinDesk. CoinDesk's bitcoin price index tracks prices from cryptocurrency exchanges Bitstamp, Coinbase, itBit and Bitfinex. As of 4:04 p.m. ET, bitcoin was trading more than 18.5 percent lower around $11,048, according to CoinDesk.
Trading in South Korean won accounted for about 3.5 percent of bitcoin trading volume, according to CryptoCompare. U.S. dollar-bitcoin trading had the largest share at nearly 42 percent, the website showed.
Bitcoin 3-month performance
Source: CoinDesk
Other major digital currencies including ethereum and ripple also fell significantly. According to CoinMarketCap data, ethereum dropped 22 percent to $1,007, while ripple fell 30 percent to $1.17.
Investors also monitored reports of an escalated crackdown on the cryptocurrency market in China.
On Monday, Bloomberg reported that authorities in China were planning to block domestic access to Chinese and offshore cryptocurrency platforms that allow centralized trading. Regulators will also target people and companies that provide market-making, settlement and clearing services for centralized trading, the publication said, citing unnamed sources.
And on Tuesday, a Chinese central bank official reportedly said that authorities should ban the centralized trading of digital currencies, adding weight to concerns of further suppression of the country's cryptocurrency market.
