Green Ceiling™
The moss-tiles belong to a series of RAD experiments in planting the ceiling for healthier and richer interiors. RAD recognizes the ceiling as an untapped site for interior landscapes. It is an undisturbed zone that can be reclaimed by nature and linked to resilient outdoor ecosystem by means of networked embedded technology.

The tile consists of a disposable/recyclable coco mat “cartridge” and an aluminum ‘tray” with integrated sensors, digital readout and wireless communication. The cartridge hosts a variety of common low maintenance moss species including Hypnum, Haircap, Rock Cap, and Cushion moss. They are irrigated by a hand held piston-pump sprayer or alternatively by means of an automated misting system integrated into the drop-ceiling structure. Moisture levels are optimized through embedded humidity sensors.
Internet of Moss
Although discretized as individual elements for stand-alone use or modular aggregation, the DropMoss™ tiles are wirelessly connected to their neighbors and linked to the Internet. They report individually on their status (moisture and pH) and together on ambient environmental conditions (temperature, ambient light, humidity, C02). They join other networked moss communities around the globe in an ecosystem of live correlated data whose feedback serves their resilience and sustainability.

Carol Moukheiber, Christos Marcopoulos, Rodolphe el-Khoury. Team: Andrew Piotrowski, Tommy Reslinski, Samar Sabie


Carol Moukheiber and Christos Marcopoulos

Date: 2012-

Valentina Mele
Erin Holman
Stacie Vos

Janus House

Carol Moukheiber and Christos Marcopoulos

Completed: 2012
Location: Toronto


Kevin Schorn
Gabriel Fain
Yie Ping See
Thilani Rajarathna
Michael Spatafora
Valentina Mele
Sonia Ramundi
Patty Graham

Structural Engineering
Blackwell Bowick
Luke Anderson

Maris Marzulis

Farnsworth Wall

Carol Moukheiber and Christos Marcopoulos

Date: 2009

Christos Marcopoulos and Carol Moukheiber with Mani Mani

The Circle

Client: The Circle

Date: Completed 2007

Location: Vancouver, B.C

Domestic Appendix

Heating and Cooling Glass

Heating and Cooling Glass explores the potential for the migration of the central HVAC system into a decentralized modular surface.

The double glazed Heating and Cooling Glass unit is used opportunistically as the site of maximum difference in temperature. Mediating incoming and outgoing air at the envelope takes advantage of the building’s skin as the interface between two different climatic zones. That difference is harnessed— through a Peltier device inserted in the glazing unit—to generate heating and cooling locally, as needed by the user, or as necessitated by weather conditions. By distributing the previously centralized HVAC system into the glazing system, glass becomes not only a visual transmitter of the outside but also a haptic transmitter. In a tactile way, it fulfills the quest of modernism to achieve continuity between inside and outside.

Fresh Air Window

Meka World

MEKA was initiated by Christos Marcopoulos (NMinusOne), designer Jason Halter, and Michael deJong.

NMO on Tumblr

Food for Thought



Digital Window

Khyber Ridge House

Date: Completed 2005

Carol Moukheiber and Christos Marcopoulos

Photography: Ari Marcopoulos, Frank Jones and Someone Else

Consultants: Yu Strandberg Engineering + local engineer C.A. Boom Engineering Ltd.
Contractor: Michael McGillion

San Jose

Octavia Blvd.

NMO Unedited

Sky House

The architectural components used to achieve the illusion of corporeal suspension, are simultaneously the essential ingredients for a low-carbon house in arid climates.

Sustainability in the service of pleasure. The house is half house half pool. The interior temperature of the house is regulated by the pool water. The exterior wall of the pool forms the interior walls of the house. The wall works as a heat exchange device. To maximize exchange it is shaped as a series of stacked continuous cooling ribs, assuming a form for maximum surface to air exchange.The filtration system of the pool runs the water by a tank of Phase Change Materials (PCM) encapsulated in 3” diameter plastic capsules. During the day the PCM absorb the solar energy embedded in the water from the sun. At night the PCM releases this energy back into the water and subsequently back into the house

Pill Color Manual

The Studio (n-1) Placebo Color Manual gives you a color swatch of the most used pharmaceuticals. Consult the manual for colors that can potentially be associated with psycho therapeutic effects and placebo responses researched by the top pharmaceutical companies.

Medications are listed in Alphabetical order:


Previous (n-1) Site

nminusone.com version 1.0, we’re keeping it alive — some projects are still better viewed through flash animations.

Gallery House

Mirror House

Pool House

Hoover House